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Congressional districts are the 435 areas from which people are elected to the U.S. House of Representatives.  After the apportionment of congressional seats among the states based on decennial census population counts, each state is responsible for establishing the boundaries of the congressional districts 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 TIGER/Line Shapefiles contain the 113th Congressional Districts.  All congressional districts appearing in the TIGER/Line Shapefiles reflect the information provided to the Census Bureau by the states.  The 113th Congressional District shapefile contains the areas in effect January 2013 to 2015.  


Each state has a minimum of one representative in the U.S. House of Representatives.  The District of Columbia, Puerto Rico, American Samoa, Guam, and the U.S. Virgin Islands have a non-voting delegate in the Congress.


Congressional District Codes—Congressional districts are identified by a 2-character numeric FIPS code.  Congressional districts are numbered uniquely within state. The District of Columbia, Puerto Rico and the Island areas have the code of 98, which identifies their status with respect to representation in Congress:


01 to 53—Congressional district codes

00—At large (single district for state)

98—Nonvoting delegate


113th Congressional District National Shapefile Record Layout
STATEFP2StringCurrent state FIPS code CD113FP 2 String 113th congressional district FIPS code
GEOID4String113th congressional district identifier; a concatenation of current state FIPS code and the 113th congressional district FIPS code
NAMELSAD41StringCurrent name and the translated legal/statistical area description for congressional district
LSAD2StringCurrent legal/statistical area description code for congressional district
CDSESSN3String113th congressional session code
MTFCC5String MAF/TIGER feature class code (G5200)
FUNCSTAT1StringCurrent functional status
ALAND14NumberCurrent land area
AWATER14NumberCurrent water area
INTPTLAT11StringCurrent latitude of the internal point
INTPTLON12StringCurrent longitude of the internal point

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