Gazetteer Files

The U.S. Gazetteer Files provide a listing of all geographic areas for selected geographic area types. The files include geographic identifier codes, names, area measurements, and representative latitude and longitude coordinates. 

2026
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2026

This page provides links to the 2026 gazetteer files for 120th congressional districts, American Indian/Alaska Native/Native Hawaiian Areas, census tracts, counties, county subdivisions (minor civil divisions/census county divisions), places, school districts (elementary, secondary, unified, and administrative), state legislative districts (upper and lower), states, 2020 Census urban areas, and ZIP Code tabulation areas (ZCTAs) for the 50 states, the District of Columbia, and Puerto Rico.

Notes:

  • All national files are in a compressed format.
  • Files are pipe-delimited text with one record per file, unless noted.
  • Population and housing unit counts are not included in these files.
  • The Island Areas (American Samoa, the Commonwealth of the Northern Mariana Islands, Guam, and the U.S. Virgin Islands) are not included in these files.
  • The geography in these files matches the areas for which the 2026 American Community Survey data are published.
  • Because of changes in boundaries and entity names, the creation of new entities, and the dissolution of others, users should not expect a one-to-one relationship between the entity names and codes in these files and the 2013-2025 American Community Survey, 2020 Census, 2010 Census, Census 2000, or 1990 Census files.

120th Congressional Districts

The congressional districts file contains data for the 120th Congress (January 2026 to January 2028).

American Indian/Alaska Native/Native Hawaiian Areas

American Indian/Alaska Native/Native Hawaiian Areas, by Component

Census Tracts

The census tract file is based on 2020 Census tracts.

Core Based Statistical Areas

Some records contain special characters.

Counties

Some records contain special characters.

County Subdivisions

Some records contain special characters.

The congressional districts file contains data for the 115th Congress (January 2017 to January 2019).

Places

School Districts - Elementary

The school districts - elementary file contains data for 25 states and represents districts in operation as of January 1, 2026. The states represented in the file are: Arizona, California, Connecticut, Georgia, Illinois, Kentucky, Maine, Massachusetts, Michigan, Minnesota, Missouri, Montana, New Hampshire, New Jersey, New York, North Dakota, Oklahoma, Oregon, Rhode Island, Tennessee, Texas, Vermont, Virginia, Wisconsin, and Wyoming.

School Districts - Secondary

The school districts - secondary file contains data for 19 states and represents districts in operation as of January 1, 2026. The states represented in the file are: Arizona, California, Connecticut, Georgia, Illinois, Kentucky, Maine, Massachusetts, Minnesota, Montana, New Hampshire, New Jersey, New York, Oregon, Rhode Island, Tennessee, Texas, Vermont, and Wisconsin.

School Districts - Unified

The school districts - unified file contains data for unified school districts in the 50 states, the District of Columbia, and Puerto Rico and represents districts in operation as of January 1, 2026.

School Districts - Administrative

The school districts - administrative file contains data for administrative school district areas in the state of Vermont and represents districts in operation as of January 1, 2026.

States

State Legislative Districts - Lower Chamber

The state legislative districts - lower chamber file contains data for 49 states and Puerto Rico for the 2026 election cycle. Nebraska has a unicameral legislature, and the District of Columbia has a single council, both of which the Census Bureau treats as upper-chamber legislative areas for the purpose of data presentation. Therefore, there are no lower chamber state legislative districts provided for Nebraska or the District of Columbia.

State Legislative Districts - Upper Chamber

The state legislative districts - upper chamber file contains data for all 50 states, the District of Columbia, and Puerto Rico for the 2026 election cycle. Some records contain special characters.

Urban Areas

This file contains the 2020 Census urban areas based on 2020 Census blocks.

ZIP Code Tabulation Areas

This file contains ZIP Code tabulation areas based on 2020 Census blocks.

Page Last Revised - September 4, 2026