LUCA Forms, Letters, User Guides, and other Items

Local Update of Census
Addresses (LUCA) Program Local
Government Information Booklet

Issued January 2007

2010 Decennial Census Program
D-1693L

The Local Update of Census Addresses
(LUCA) Program is an integral part of the
2010 Decennial Census Program and
utilizes the expertise of tribal, state, and
local governments to improve the accuracy and completeness of the address
list used to take the census. Tribal, state,
and local governments can contribute to
a complete enumeration of their communities by reviewing and commenting
on the list of housing unit and group
quarters addresses that the U.S. Census
Bureau will use to deliver census
questionnaires.
Background
Recognizing that a complete and accurate address list is essential to a complete and accurate census, Congress
passed the Census Address List Improvement Act of 1994 (Public Law 103-430)
authorizing the Census Bureau to provide the census address list for review
and comment by tribal, state, and local
government liaisons who agree to conditions of confidentiality.
Title 13, United States Code (U.S.C.),
provides for the confidential treatment of census-related information and
protects the addresses contained on the
Census Bureau’s address list. Liaisons
and reviewers appointed by local governments to review the Census Bureau’s
address list for their jurisdictions are
required to sign a confidentiality agreement and abide by the Census Bureau’s
security guidelines. Each LUCA liaison is
also required to perform a data security
self-assessment check. After receiving
signed and completed confidentiality
agreements and security self-assessment
checklists, the Census Bureau will send
Title 13-protected LUCA materials to
those governments that chose to receive
the Option 1 or Option 2 materials
described on the following pages.

Why the LUCA Program Is
Important to Your Community
Accurate census data are important
to your community in a number of
ways. In addition to the constitutional
requirement for the decennial census
to apportion seats in the U.S. House of
Representatives, census data are used
to allocate federal monies to states and
local governments. Additionally, significant amounts of state-generated funds
are distributed on the basis of population data. Other statistical census data
support grant applications that fund
community, social, economic, and environmental programs and other needed
improvements and enhancements. Census data also help communities plan for
future needs.
If your government does not have the
staff or financial resources to participate
in the LUCA program, you can designate another level of government or
an agency, such as a county planning
department, regional planning agency,
or state-level agency, that is willing to
assist you or act as your agent in reviewing the LUCA materials.
Training and Support
Training workshops conducted by Census Bureau staff will provide you with
“hands-on” experience using the LUCA
program materials. Self-training aids
will be available to participants who are
unable to attend the workshops. In addition, the 2010 Census Local Update
of Census Addresses (LUCA) Program
User’s Guide provides detailed instructions and examples for conducting the
LUCA review.

U.S. Department of Commerce
Economics and Statistics Administration
U.S. CENSUS BUREAU

The LUCA Participation Options
The 2010 Census LUCA program offers three
participation options:
Option 1
— Title 13 Full Address List Review
Option 2
— Title 13 Local Address List Submission
Option 3
— Non-Title 13 Local Address List Submission
Option 1 and Option 2 require participants to
sign the confidentiality agreement in compliance
with Title 13, U.S.C., and the data security selfassessment checklist. A signed confidentiality
agreement is not required for Option 3 because
Title 13 data are not provided.

What’s New?
The 2010 Census LUCA program offers a number of
improvements:
• One review cycle for all
address types.
• 120 calendar days for
review.
• More advance notice.
• Comprehensive program
communications, including periodic contact.

Option 1—Title 13 Full Address List Review
Option 1 allows you to review the entire census address
list for your jurisdiction. This includes both city-style
addresses (for example, 101 Main Street) and noncitystyle addresses (for example, P.O. box, rural route, etc.).
This option allows you to update any city-style address
on the census address list as well as add new city-style
addresses. For census blocks containing all noncitystyle addresses, you can only challenge the count of
addresses on the address count list. If a census block
has a mix of city-style and noncity-style addresses, you
can update individual city-style addresses or challenge
the count of addresses for the census block, but you
cannot do both.

• Three program options.
• A MAF/TIGER® Partnership Software
(MTPS) application that
combines the census
address list, address
count list, and digital
maps in a software
package.

The Census Bureau provides:
• A complete Census Bureau address list for your
jurisdiction.
• A count of addresses by census block within your
jurisdiction.
• Census Bureau paper maps or digital shapefiles.
• A 2010 Census LUCA Program User’s Guide.
• MAF/TIGER® Partnership Software application
(if requested).
• Training.

Each LUCA liaison and reviewer must sign and return
the confidentiality agreement. The LUCA liaison is also
required to perform a data security self-assessment
and complete, sign, and return the self-assessment
checklist.

You provide:
• Updates (additions, deletions, corrections) to the
Census Bureau’s city-style addresses.
• Challenges to the address counts in census blocks.
• Updates and corrections to the features and legal
boundaries on the Census Bureau’s maps or digital
shapefiles.
Note—Use of digital shapefiles requires a geographic
information system software package, such as the
Census MAF/TIGER® Partnership Software.
This option allows you to update any city-style
address on the census address list or challenge
counts on the address count list.

2

Local Update of Census Addresses (LUCA) Program Local Government Information Booklet
U.S. Census Bureau

Option 2—Title 13 Local Address List
Submission
The Title 13 Local Address List
Submission option allows you
to submit your local computerreadable address file (city-style
addresses only) in a predefined
Census Bureau format. The
Census Bureau will provide our
address list and address count
list (computer-readable files only)
as a reference for your jurisdiction. Our address list includes
both city-style and noncity-style
addresses. You cannot update
the census address list or challenge the address counts.
The Census Bureau will match your local address file to
ours and make corrections to our census address list.
Each LUCA liaison and reviewer must sign and return
the confidentiality agreement. The LUCA liaison is also
required to perform a data security self-assessment
and complete, sign, and return the self-assessment
checklist.
In this option you will receive a complete Census
Bureau address list and an address count list by
block as a reference for your jurisdiction.

Option 3—Non-Title 13 Local Address
List Submission
The Non-Title 13 Local
Address List Submission
option offers you an opportunity to submit your local
computer-readable address
file (city-style addresses only)
to the Census Bureau. Under
this option, you do not receive
the census address list. However,
you do receive, as a reference,
an address count list (computer-readable only) that
contains address counts for each of the census blocks
within your jurisdiction. The Census Bureau will match
your address file to ours and make corrections to our
census address list.

Option 3 allows you to submit your local
address file in a Census Bureau predefined
computer-readable format.
A signed confidentiality agreement is not
required for Option 3.

The Census Bureau provides:
• A complete Census Bureau address list for your
jurisdiction (computer-readable).
• A count of addresses by census block within your
jurisdiction (computer-readable).
• Census Bureau paper maps or digital shapefiles.
• A 2010 Census LUCA Program User’s Guide.
• MAF/TIGER® Partnership Software application (if requested).
• Training.
You provide:
• Your local address file (containing only city-style
addresses) in a predefined computer-readable format.
• Updates and corrections to the features and legal
boundaries on the Census Bureau’s maps or digital
shapefiles.
Note—Use of digital shapefiles requires a geographic
information system software package, such as the
Census MAF/TIGER® Partnership Software.

The Census Bureau provides:
• A count of addresses by census block within your
jurisdiction (computer-readable).
• Census Bureau paper maps or digital shapefiles.
• A 2010 Census LUCA Program User’s Guide.
• MAF/TIGER® Partnership Software application
(if requested).
• Training.
You provide:
• Your local address file (containing only city-style
addresses) in a predefined Census Bureau computerreadable format.
• Updates and corrections to the features and legal
boundaries on the Census Bureau’s maps or digital
shapefiles.
Note—Use of digital shapefiles requires a geographic
information system software package, such as the
Census MAF/TIGER® Partnership Software.

Local Update of Census Addresses (LUCA) Program Local Government Information Booklet
U.S. Census Bureau

Option 2 allows you to only
submit your local address file
in a Census Bureau predefined
computer-readable format.

3

LUCA Program Materials for Local Governments
The Census Bureau provides the materials required to participate in the LUCA program. Depending on the option
you choose, these materials include:
• 2010 Census LUCA Address List
Contains all of the census addresses within your jurisdiction known to the Census Bureau.
• 2010 Census LUCA Address List Add Page
Used to add addresses to the census address list by participants who request the paper format address list.
• 2010 Census LUCA Address Count List
Contains the counts of the number of addresses for each census block within your jurisdiction.
• 2010 Census Local Update of Census Addresses (LUCA) Program User’s Guide
Contains your instructions for updating the census address list, address count list, paper maps, or
digital shapefiles.
• 2010 Census LUCA Paper Maps or Digital Shapefiles
Created from the Census Bureau’s Topologically Integrated Geographic Encoding and Referencing (TIGER®)
System, allows you to submit feature and boundary updates either on the paper maps or electronically.
• MAF/TIGER® Partnership Software
Geographic Information System (GIS) software for use with digital shapefiles (see below).

Media Formats
Paper Format—The 2010 Census LUCA address list,
address list add page, and address count list are available in paper printouts for Option 1 participants only.
Participants who select paper materials can choose to
receive either paper maps or digital shapefiles showing
the features and boundaries of their jurisdictions. Paper
address lists will not be provided to entities with over
6,000 addresses (1,000 pages).
Computer-Readable Format (CD-ROM or DVD)—
The Census Bureau offers pipe-delimited ASCII files
for both the 2010 Census LUCA address list and the
address count list on CD-ROM or DVD. These files are
easily imported into a variety of commercial spreadsheet or database
applications. Option 1
participants with more
than 6,000 addresses
will find the computerreadable format to be
more flexible. Option
2 and Option 3 participants are eligible to
receive only computerreadable files. Participants who select
computer-readable lists
can choose to receive
either paper maps or
digital shapefiles.

4

MAF/TIGER® Partnership Software—The MAF/
TIGER® Partnership Software (MTPS) is a GIS application that combines the 2010 Census LUCA address list,
address count list, and maps into an easy-to-use software package. The MTPS allows participants to update
the address list, address count list, and maps and to
import local address lists and digital shapefiles for comparison with the Census Bureau data. All address and
map updates will meet the Census Bureau’s formatting
requirements. This software is appropriate for any level
of government and only requires a personal computer
using a Windows 98 or newer operating system.

The MAF/TIGER® Partnership Software application is
new for the 2010 Census LUCA Program.

Local Update of Census Addresses (LUCA) Program Local Government Information Booklet
U.S. Census Bureau

Paper Products

The information contained on the census
address list includes
census geographic
codes, such as state and
county codes, census
tract and block numbers, address information, and group quarters
identification. This list
is provided only to those
participants who choose
Option 1, paper media.

EX

AM

PL
E

Address List

Local Update of Census Addresses (LUCA) Program Local Government Information Booklet
U.S. Census Bureau

5

Paper Products

X
E

M
A

The LUCA address list add
page is used to add citystyle addresses within a
jurisdiction that do not
appear on the census
address list. This form is
provided only to those
participants who choose
Option 1, paper media.

E
L
P

Address List Add Page

6

Local Update of Census Addresses (LUCA) Program Local Government Information Booklet
U.S. Census Bureau

Paper Products
Address Count List

X
E

P
M
A

E
L

The LUCA address count
list contains the count of
housing unit and group
quarters addresses for
each census block within
a jurisdiction. The list
contains 50 census
blocks per page. This list
is provided only to those
participants who choose
Option 1, paper media.

Local Update of Census Addresses (LUCA) Program Local Government Information Booklet
U.S. Census Bureau

7

Computer-Readable Address List Record Layout

Computer-Readable Products

The information contained on each census address record includes census geographic codes, such as state and
county codes, and census tract and block numbers, as well as address information and group quarters identification. Each address record has a maximum length of 462 characters and contains 26 fields of information. The
character length for each record may vary. This list is sent to all Option 1 participants who choose computerreadable media and to all Option 2 participants.
Maximum
character
length
12
7
9
1
2
3
7
5
1
35
3
2
14
100
14
2
3
100

Field name

Description/notes

Entity ID code
Line number
MAFID
Action code
State code
County code
Census tract number
Census block number
Group quarters flag
House number
Street name prefix qualifier
Street name prefix direction
Street name prefix type
Street name
Street name suffix type
Street name suffix direction
Street name suffix qualifier
Location description or GQ name

53
5
50
5
5

Apartment/unit number
City-style mailing ZIP Code
Noncity-style mail delivery address
Noncity-style mailing ZIP Code
Structure point

11
12
1

Structure latitude
Structure longitude
City-style address flag

Unique code assigned by the Census Bureau to each entity (variable length)
Unique number for each address record in the file
Unique identification number assigned to each census address
Valid codes: A, C, D, J, or N; entered by participant
2-digit current state code
3-digit current county code
4-digit current census tract number, a period, plus a 2-digit numeric suffix
4-digit current census block number, plus a 1-digit alpha character suffix, if applicable
Displays a ‘‘Y’’ if the unit is a group quarters
Housing unit’s or group quarters’ assigned house number
e.g., BUS, OLD, private, historic loop
e.g., N, W, SE
e.g., HWY, RT, US
Full street or road name
e.g., ST, CT, AVE, DR
e.g., N, W, SE
e.g., Ext, loop, access
Description of living quarters (e.g., red ranch w/white shutters) or name of group quarters
(e.g., Dobbs Hall—University of Dobbs)
Within structure descriptor or identifier, such as APT 5 or 1st FL FRNT
5-digit ZIP Code for a city-style mailing address
Rural route and box number, post office box number, etc.
5-digit ZIP Code for a noncity-style mailing address
4-digit number, plus 1-digit alpha assigned by the Census Bureau to structures in areas
that contain predominately noncity-style addresses (RR, P.O. box #, general delivery, etc.)
The latitude coordinate in degrees, with 6 implied decimals
The longitude coordinate in degrees, with 6 implied decimals
Displays a ‘‘Y’’ if the address is city-style, ‘‘N’’ if noncity-style

Computer-Readable Address Count List
The address count list file contains the count of housing unit and group quarters addresses for each census block
within a participant’s jurisdiction. Each census block record is at least 57 characters in length and contains nine (9)
fields of information. The character length of each record may vary. This file is sent to Option 1 participants who
choose computer-readable media and to all Option 2 and Option 3 participants.
Maximum
character
length
12
2
3
7
5
7
7
7
7

8

Field name
Entity ID code
State code
County code
Census tract and suffix
Census block and suffix
Census count of housing unit addresses
Local count of housing unit addresses
Census count of group quarters addresses
Local count of group quarters addresses

Description/notes
Unique code assigned by the Census Bureau to each entity (variable length)
2-digit current state code
3-digit current county code
4-digit current census tract number, a period, plus a 2-digit number suffix
4-digit current census block number, plus a 1-digit alpha character suffix, if
applicable
Census Bureau’s most recent count of housing unit addresses
Blank field to enter the local count of housing unit addresses
Census Bureau’s most recent count of group quarters addresses
Blank field to enter the local count of group quarters addresses

Local Update of Census Addresses (LUCA) Program Local Government Information Booklet
U.S. Census Bureau

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The Census Bureau provides one
set of digital shapefiles, created
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System, that allows participants
to submit feature and boundary updates electronically. Digital
shapefiles require the use of GIS
software. All shapefiles produced
by the Census Bureau are in
Environmental Systems Research
Institute (ESRI) shapefile format.
Participants must use the Census
Bureau-supplied digital shapefiles
to make digital submissions. The
Census Bureau-supplied shapefiles
are in a format that contains all of
the current geographic codes necessary to correct addresses as well
as submit feature corrections. The
digital shapefiles do not contain
Title 13 data.

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The Census Bureau provides one
set of paper maps that displays
roads, streets, and other physical features, along with the most
recent jurisdictional boundaries
known to the Census Bureau. Use
the paper map to identify feature
and/or legal boundary corrections.

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2016

The Census Bureau paper maps
display roads, streets, and other
physical features within a jurisdiction and the most recent jurisdictional boundary known to the
Census Bureau. Structure points
identifying individual housing unit
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Entity Type: County
ST: Pennsylvania (42)
COU: Fayette (051)

Local Update of Census Addresses (LUCA) Program Local Government Information Booklet
U.S. Census Bureau

9

When Can Local
Governments Participate?
Once the Census Bureau receives your completed registration
materials, the LUCA program materials will be mailed to you.
You have 120 calendar days from the receipt of your LUCA
materials to conduct your review and return your submission.
The period during which you can conduct your review and
update is from August 2007 to April 2008.

You have 120 calendar days from
the receipt of your LUCA materials
to conduct your review and return
your submission.

For example:

Strategies for Review
Each participating government must decide for itself
how to conduct its review of the LUCA materials. Consider your available time, the local address information
you have readily available, and the staff or computer
resources you have. If a complete review is not possible, the Census Bureau recommends that you focus
your review on areas where addresses are more likely
missed or incorrect.

Focus your review on areas where
addresses are more likely missed
or incorrect.

• Areas of new construction
• E-911 address conversion
areas
• Single-family homes
converted to multifamily
homes, and vice versa
• Warehouses converted to
residential units
• New mobile home parks
or new scattered mobile
homes
• Apartment buildings with irregular or missing
numbering schemes for the individual units

Local governments are in the best position to identify
areas with potentially missing or incorrect addresses.

• Annexed land
• Areas along governmental boundaries

Suggested Local Address Sources
Each LUCA participant will likely have different address
sources. In addition, there may be a list of addresses
within your jurisdiction maintained by another
agency or level of government.
The following is a list of address sources that
may be available to you:
• New housing construction or building
permits
• E-911 address files
• Housing inspection records
• Planning and zoning records
• Local utility records
• School enrollment records
• Driver’s license files
• Annexation records
• Assessment or taxation files
• Voter registration files
10

Local Update of Census Addresses (LUCA) Program Local Government Information Booklet
U.S. Census Bureau

What Happens to Your Corrections?
Once you have reviewed and corrected the Census Bureau
address list and/or the address count list and maps or digital
shapefiles, you must return them to your Census Bureau regional
office. The Census Bureau will then:
• Review and process the suggested address changes.
• Update the Census Bureau’s geographic database with the
suggested map corrections.
• Conduct the Address Canvassing (field check) Operation to
validate the census address list.

Option 2—Title 13 Local Address List Submission

The Feedback Process
The Census Bureau will provide feedback materials after
conducting the Address Canvassing Operation. The
field checks will determine the validity of all the corrections you submit. In addition, field checks will ensure
that the Census Bureau has complete address coverage
as well as current map features for your jurisdiction,
even if you decide not to participate in the LUCA program. Depending upon the participation option
you choose, you will receive the following feedback
materials:
Option 1—Title 13 Full Address List Review

An updated:
• Census address list with detailed feedback on each
address provided by your jurisdiction.
• Address count list.
• Map(s) or digital shapefile for your jurisdiction.

Option 3—Non-Title 13 Local Address
List Submission
An updated:

An updated:
• Address count list.

• Census address list with detailed feedback on each
address commented on by your jurisdiction.

• Map(s) or digital shapefile for your jurisdiction.
The feedback materials are available in computerreadable or paper format. The feedback materials
you receive will be in the same format you requested
for your initial review. Your Census Bureau regional
office can answer questions regarding your
feedback materials.

• Address count list.

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• Map(s) or digital shapefile for your jurisdiction.

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2624.00

Local Update of Census Addresses (LUCA) Program Local Government Information Booklet
U.S. Census Bureau

11

Summary of LUCA Program Activities
In July 2007 you will receive your 2010 Census LUCA
invitation and registration package. At that time,
you will:

• Plan your strategy for reviewing the 2010 Census
LUCA materials.

• Determine which participation option your government prefers.

• Review and correct 2010 Census LUCA materials.

• Designate a 2010 Census LUCA official liaison.

Finally, you will:

- Indicate your government’s media type preference
(either paper or computer-readable) on which to
receive LUCA materials.
- Sign and return the confidentiality agreement and
self-assessment checklist form (required for Option
1 and Option 2).
- Sign and return the 2010 Census LUCA program
registration form and product preference form.
Next, you will:

• Obtain 2010 Census LUCA training.

• Submit corrected LUCA materials.

• Review feedback materials containing detailed
comments on your address submissions.
• Appeal address discrepancies if you do not agree
with your feedback (Option 1 and Option 2 participants only).
• Return all Title 13 materials to your Census Bureau
regional office.
To find out more about the LUCA program, go to
.

• Identify available local address source materials for
your 2010 Census LUCA review.

The 2010 Census LUCA Program Schedule
TIME FRAME

ACTIVITY

January 2007

LUCA advance notice letters mailed to the highest elected official and other contacts
in all active functioning governments.

July 2007

Invitation letters and registration materials mailed to the highest elected official and
other contacts of each government.

July 2007 to
January 2008

Invited governments register for LUCA, and the Census Bureau ships the LUCA review
materials to each participating government.

August 2007 to
April 2008

LUCA participants review and update the address list and return their comments to
the Census Bureau’s regional office within 120 days of receipt of materials.

April 2008 to
October 2008

Census Bureau reviews participants’ LUCA submissions and updates the Master
Address File and TIGER® geographic database.

November 2008
to May 2009

Census Bureau prepares for and conducts the Address Canvassing Operation using
global positioning system (GPS) equipped hand-held computers.

June 2009 to
October 2009

LUCA participants receive feedback materials showing how the Census Bureau
processed each government’s LUCA submissions.

September 2009 to
December 2009

LUCA participants review their LUCA feedback and have the opportunity to appeal the
results to the LUCA Appeals Office.

September 2009 to
January 2010

LUCA Appeals Office reviews and adjudicates appeals.

12

Local Update of Census Addresses (LUCA) Program Local Government Information Booklet
U.S. Census Bureau

Census Bureau Regional Offices—Contact Information

Georgia
Alabama

Atlanta Regional Office: Geography
101 Marietta Street, NW, Ste. 3200
Atlanta, GA 30303-2700
(404) 331-1339
Fax: (404) 331-1570
E-mail:
atlanta.geography@census.gov

Detroit Regional Office: Geography
1395 Brewery Park Boulevard, Ste. 100
Detroit, MI 48207
(313) 656-0183
Fax: (313) 259-2529
E-mail:
detroit.geography@census.gov

Boston Regional Office: Geography
4 Copley Place, Ste. 301
P.O. Box 9108
Boston, MA 02117-9108
(617) 424-4513
Fax: (617) 424-0547
E-mail:
boston.geography@census.gov

Kansas City Regional Office: Geography
1211 North 8th Street
Kansas City, KS 66101-2129
(913) 551-6833
Fax: (913) 551-6780
E-mail:
kansas.city.geography@census.gov

Charlotte Regional Office: Geography
901 Center Park Drive, Ste. 106
Charlotte, NC 28217-2935
(704) 424-6420
Fax: (704) 424-6966
E-mail:
charlotte.geography@census.gov

Los Angeles Regional Office: Geography
15350 Sherman Way, Ste. 400
Van Nuys, CA 91406
(818) 267-1724
Fax: (818) 267-1714
E-mail:
los.angeles.geography@census.gov

Chicago Regional Office: Geography
1111 W. 22nd Street, Ste. 400
Oak Brook, IL 60523-1918
(630) 288-9245
Fax: (630) 288-9313
E-mail: chicago.geography@census.gov

New York Regional Office: Geography
New York
395 Hudson Street, Ste. 800
New York, NY 10014
Pennsylvania
(212) 584-3430
Fax: (212) 584-3419
E-mail:
new.york.geography@census.gov

Michigan

Ohio
West
Virginia

Florida

Maine
Vermont
New Hampshire
Massachusetts

New York

Rhode Island
Connecticut

Minnesota

Iowa
Kansas

Missouri

Oklahoma

Arkansas

Puerto Rico

Virginia
Kentucky
North Carolina
Tennessee
South Carolina

Wisconsin

Illinois

Indiana

Southern
California

Hawaii

Connecticut

New York
Region

New Jersey

Mississippi

Texas

Louisiana

Montana North Dakota
Wyoming

South Dakota
Nebraska

Nevada
Utah
Arizona

Colorado
New Mexico

Dallas Regional Office: Geography

Philadelphia Regional Office: Geography

8585 N. Stemmons Freeway, Ste. 800S

833 Chestnut Street, Ste. 504

Dallas, TX 75247

Philadelphia, PA 19107-4405

(214) 253-4470

(215) 717-1830

Fax: (214) 655-5365

Fax: (215) 717-0875

E-mail:

E-mail:

dallas.geography@census.gov

philadelphia.geography@census.gov

Denver Regional Office: Geography
6900 W. Jefferson Avenue, Ste. 100
Denver, CO 80235
(303) 264-0290
Fax: (303) 969-6776
E-mail:
denver.geography@census.gov

Seattle Regional Office: Geography
601 Union Street, Ste. 3800
Seattle, WA 98101-1074
(206) 381-6260
Fax: (206) 381-6313
E-mail:
seattle.geography@census.gov

Pennsylvania
New Jersey
Delaware
Washington, DC
Maryland

Alaska
Washington

Northern
California

Oregon

Idaho