Data Catalog

Dataset: US Census Congressional Districts

Description

Congressional districts (CDs) are the 435 areas from which people are elected to the US House of Representatives. Congressional districts are numbered uniquely within each state by a 2-character numeric FIPS code from 00 (to signify an "At Large" single district for state) to XX.

Collection Methodology

After the apportionment of congressional seats among the states, based on census population counts, each state is responsible for establishing CDs for the purpose of electing representatives. Each congressional district is to be as equal in population to all other congressional districts in a state as practicable. The 108th Congress will be the first to reflect reapportionment and redistricting based on Census 2000 data. There was no change in boundaries for the 111th Congress, and so the 110th Congressional Districts are currently in use.

Insufficient Data The District of Columbia, Puerto Rico, American Samoa, Guam, and the US Virgin Islands have a non-voting delegate in the Congress. The Commonwealth of the Northern Mariana Islands had no representative in the 108th Congress, but was granted a non-voting delegate during the 111th Congress. This change occurred too late for inclusion in the 2009 TIGER/Line Shapefiles.

General Business Terms

This dataset is available as part of the core Mapfluence offer.

Attribution Policy

Developers must include attribution link and text as follows: Map data © 2010 Urban Mapping Inc and/or other parties when developing applications.

Attribution Text

© 2010 Urban Mapping Inc

Time Period

2009

Geographic Scope

United States

Lowest Geography

Congressional District

Geometry Types

Polygon