Work with interactive mapping tools from across the Census Bureau.
Read briefs and reports from Census Bureau experts.
Watch Census Bureau vignettes, testimonials, and video files.
Read research analyses from Census Bureau experts.
Developer portal to access services and documentation for the Census Bureau's APIs.
Explore Census Bureau data on your mobile device with interactive tools.
Find a multitude of DVDs, CDs and publications in print by topic.
These external sites provide more data.
Download extraction tools to help you get the in-depth data you need.
Explore Census data with interactive visualizations covering a broad range of topics.
Information about the U.S. Census Bureau.
Information about what we do at the U.S. Census Bureau.
Learn about other opportunities to collaborate with us.
Explore the rich historical background of an organization with roots almost as old as the nation.
Explore prospective positions available at the U.S. Census Bureau.
Information about the current field vacancies available at the U.S. Census Bureau Regional Offices.
Discover the latest in Census Bureau data releases, reports, and events.
The Census Bureau's Director writes on how we measure America's people, places and economy.
Find interesting and quirky statistics regarding national celebrations and major events.
Find media toolkits, advisories, and all the latest Census news.
See what's coming up in releases and reports.
The Census Bureau's Redistricting Data Products provide the states and other data users with the small area census data necessary for legislative redistricting. Among the geographic products disseminated for the 2010 Census are the Block Assignment Files (BAFs) and corresponding Name Look-up Tables (NLTs).
NLTs have been created for each of the 50 states, the District of Columbia, and Puerto Rico and work in conjunction with the BAFs. Every NLT contains the names and codes of every geographic area of the specific type within the state. If no records of the geographic area type exist within the state, the NLT will only display the field header.
The file naming convention is as follows:
where <ss> is the 2-character state FIPS code, <USPSabbrev> is the 2-letter U.S. Postal Service (USPS) state abbreviation, and <entity> is the geography area type being represented.
NLTs are pipe (|) delimited text (.txt) files. The first line of each NLT is the field header. The 10 types of NLTs and the fields they contain are described below:
|Geographic Area||<entity>||Field Layout|
|State legislative districts - upper||SLDU||STATEFP,DISTRICT,NAME,NAMELSAD|
|State legislative districts - lower||SLDL||STATEFP,DISTRICT,NAME,NAMELSAD|
|Elementary school districts||SDELM||STATEFP,DISTRICT,NAME,NAMELSAD|
|Secondary school districts||SDSEC||STATEFP,DISTRICT,NAME,NAMELSAD|
|Unified school districts||SDUNI||STATEFP,DISTRICT,NAME,NAMELSAD|
|Census designated places||CDP||STATEFP,PLACEFP,NAME,NAMELSAD|
|American Indian / Alaska Native / Native Hawaiian areas||AIANNH||STATEFP,AIANNHCE,NAME,NAMELSAD|
Field definitions are as follows: