Congressional Maps and Charts

The arrow icons below this text link to maps showing median household income by congressional district. Detailed tables which may be sorted by column and tie data to votes are found on the Techpolitics web site by clicking here.

Additional maps show percentages of minorities as well as socio-economic data from the 2000 census, party affiliation, Bush-Kerry and Bush-Gore (county-level), campaign contributions, social security recipients and unemployment rates (county level). Change maps by clicking the drop-down menu under "Compare Maps" to the left of the map image.

Depending on the zoom level, you can add and remove map layers (e.g. highways, places, county lines) by checking or unchecking the display boxes below the map image. Then click the Redraw button to refresh the map.

Starting at a scale of about 500 miles, you can hide the congressional theme in order to display county, tract, and block group themes. To do this, remove the check mark in the box to the left of "Congress District" underneath the map image, then click "Redraw". For the demographic maps based on the census, block group (neighborhood-level) themes automatically display at a scale of about 5 miles.

As described below, we have also produced an extensive set of charts comparing socio-economic census data for all congressional districts.

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109th Congress Constituency Mapper

Map 1 (Default) -- Median Household Income (1999)

At a scale of about 5 miles, block group median household income is displayed in purple boxes. In densely populated urban areas, you may prefer to suppress block group boundary lines (remove the check mark to the left of "_Block Group") in order to better display the thick grey congressional lines. To display, highways, streets, etc.., you must check the relevant display box below the map image and then click "Redraw".

Source: Census 2000 Summary File 3 (SF 3) Sample Data

Map 2 -- Winning Percentage in 2002 Congressional Elections (108th Congress)

For colors to display when zoomed in, the box to the left of "Congress District" must be checked. This box is checked by default. This map does not display data below the congressional level. Texas is blanked out because district lines changed significantly between 2002 and 2004..

Source: Techpolitics

Map 2A -- Winning Percentage in 2004 Congressional Elections

This map does not display data below the congressional level.

Source: C-SPAN

Map 2B -- Winning Percentage in 2006 Congressional Elections

This map does not display data below the congressional level.

Source: CNN

Map 3 -- Party Affiliation of Incumbent

This map shows the winning party in the 2004 election by congressional district.

See Maps 22 and 23 for party affiliation by state legislative district (early 2007).

Map 3A -- Party Affiliation of Incumbent 110th Congress

This map shows the new 110th congressional boundaries for Georgia and Texas

Map 4 -- Percent Minority (all races and Latino)

At a scale of about 5 miles, pie charts show population components by race and ethnicity by block group.

Source: Census 2000 Summary File 1 (SF 1) 100-Percent Data

Map 5 -- Population Below Poverty

At a scale of about 5 miles, block group population counts for persons living in poverty are displayed in purple boxes.

Source: Census 2000 Summary File 3 (SF 3) Sample Data

Map 6 -- Percent African-American (single race, inc. Hispanic blacks)

At a scale of about 5 miles, pie charts show population components by race and ethnicity by block group.

Map 7 -- Percent Latino (all races)

At a scale of about 5 miles, pie charts show population components by race and ethnicity by block group.

Map 8 -- Population Under 19 Below 185% Poverty Level (Free/Reduced Meal Eligible)

Percentage calculations are estimated due to congressional lines splitting census block groups.

Source: USDA and Special Census 2000 Summary File 3 (SF 3) Sample Data, estimates by FairData

Map 9 -- Percent American Indian

At a scale of about 5 miles, pie charts show population components by race and ethnicity by block group.

Map 10 -- Percent Asian-American

At a scale of about 5 miles, pie charts show population components by race and ethnicity by block group.

Map 11 -- Unemployment rate by county, 2002 annual averages

Zoom in to see congressional boundaries. Unemployment rates by congressional district are not available. At a scale of about 200 miles, unemployment rates by county are displayed to a tenth of a percentage point.

This map does not display data below the county level.

Source: Bureau of Labor Statistics

Map 12 -- Unemployment rate by county, 2004 annual averages

This map does not display data below the county level.

Click here for an interactive table of December 2003 data by Techpolitics.

Source: Bureau of Labor Statistics

Map 13 -- 2004 Contributions (108th Congress)

Click here for an interactive table of the data by Techpolitics.

Source: Federal Election Commission

Map 14 -- Social Security Recipients (all ages, 2003)

Note: Color themes for Maine and Pennsylvania are estimates based on 108th congressional boundaries. Texas is blanked out pending updated info from the Social Security Administration based on new congressional boundaries.

Click here for an interactive table of the data by Techpolitics.

At a scale of about 100 miles, zip code level data is automatically displayed for all states and DC. The numbers in purple boxes. show the Social Security recipient count at the zip code level. P.O. box zip codes are assigned to the surrounding zip code. More detailed data can be queried using the INFO tool.

Sources: Techpolitics, Social Security Administration, Bureau of the Census

Map 15 -- 18+ Soc. Security Recipients (% of 18+ pop., 2003)

Click here for an interactive table of the data by Techpolitics.

For colors to display when zoomed in, the box to the left of "Congress District" must be checked. This box is checked by default. This map does not display data below the congressional level.

Map 16 -- Social Security Recipients (Disabled, 2003)

Click here for an interactive table of the data by Techpolitics.

At a scale of about 100 miles, zip code level data is automatically displayed for all states and DC. The numbers in purple boxes. show the count of disabled Social Security beneficiaries at the zip code level. P.O. box zip codes are assigned to the surrounding zip code. More detailed data can be queried using the INFO tool.

Sources: Techpolitics, Social Security Administration, Bureau of the Census

Map 17 -- Bush-Kerry by County (Head-to-Head Contest)

At a scale of about 200 miles, green labels show votes cast for the two major party candidates by county. For total votes cast and votes by candidate (all parties), click the INFO button and then on a county. The election data can be accessed from the pop-up window under "County (Elections)".

This map does not display election returns below the county level.

Note that congressional lines are for the 109th congress ( 2005-2006).

Source: Dave Leip's Atlas of US Presidential Elections, 12/03/04.

Map 18 -- Bush-Gore by County (Head-to-Head Contest)

See details above. Note that congressional lines are for the 109th congress ( 2005-2006), not the historical 2000 boundaries.

Source: Dave Leip's Atlas of US Presidential Elections

Map 19 -- Number of Farms (2002) by 109th Congressional District

Note: Color themes for Maine and Pennsylvania are estimates based on 108th congressional boundaries. Texas is blanked out due to significant changes in the 109th congressional boundaries.

Click here for an interactive table of the data by Techpolitics.

Sources: Techpolitics, Department of Agriculture (2002 Census of Agriculture)

Map 20 -- Veterans (2004) by 109th Congressional District

Note: Color themes for Maine and Pennsylvania are estimates based on 108th congressional boundaries. Texas is blanked out due to significant changes in the 109th congressional boundaries.

Click here for an interactive table of the data by Techpolitics.

Sources: Techpolitics, Veterans Administration 2004 projections based on 2000 Census

Map 21 -- Sec. 203 Language Map -- (Voting Rights Act language minority 18+)

This thematic map shows the percentage of voting age persons who do not speak English "very well". This category includes all non-English speakers 18 and over who speak English "well", "not well", or "not at all".

The counties outlined in blue that overlay the congressional boundaries are currently covered by Sec. 203 of the Voting Rights Act.

At a scale of about 5 miles , the number (by block group) of 18+ non-English speaking persons who do not speak English "very well" is displayed in purple boxes.

Source: Census 2000 Summary File 3 (SF 3) Sample Data

Map 22 -- Party Affiliation (State Senate) 2007

Note: Incumbent and party affiliation data are from early 2007. There are nearly 7,500 legislators nationwide, so changes occur every month. Party affiliation is more stable than the name of incumbent.

Source: State legislature websites

Map 23 -- Party Affiliation (State House) 2007

See Map 22 note

110th Congress Constituency Mapper

Map 1 (Default) -- Median Household Income (1999)

This map shows the new 110th congressional boundaries for Georgia and Texas

Source: Census 2000 Summary File 3 (SF 3) Sample Data

Map 2 -- Party Affiliation of Incumbent

This map shows the winning party in the 2006 election by congressional district. .

See Maps 12 and 13 for party affiliation by state legislative district (early 2007).

Map 2A -- Party Affiliation of Incumbent 109th Congress

This map shows the old 109th congressional boundaries for Georgia and Texas

Map 3 -- Winning Percentage in 2006 Congressional Elections

This map does not display data below the congressional level.

Source: CNN

Map 3A -- Winning Percentage in 2004 Congressional Elections

This map does not display data below the congressional level.

Source: C-SPAN

Map 4 -- Percent Minority (all races and Latino)

At a scale of about 5 miles, pie charts show population components by race and ethnicity by block group.

Source: Census 2000 Summary File 1 (SF 1) 100-Percent Data

Map 5 -- Population Below Poverty

At a scale of about 5 miles, block group population counts for persons living in poverty are displayed in purple boxes.

Source: Census 2000 Summary File 3 (SF 3) Sample Data

Map 6 -- Percent African-American (single race, inc. Hispanic blacks)

At a scale of about 5 miles, pie charts show population components by race and ethnicity by block group.

Map 7 -- Percent Latino (all races)

At a scale of about 5 miles, pie charts show population components by race and ethnicity by block group.

Map 8 -- Percent American Indian

At a scale of about 5 miles, pie charts show population components by race and ethnicity by block group.

Map 9 -- Percent Asian-American

At a scale of about 5 miles, pie charts show population components by race and ethnicity by block group.

Map 10 -- Unemployment rate by county, 2007 annual averages

Zoom in to see congressional boundaries. Unemployment rates by congressional district are not available. At a scale of about 200 miles, unemployment rates by county are displayed to a tenth of a percentage point.

This map does not display data below the county level.

Source: Bureau of Labor Statistics

Map 11 -- Bush-Kerry by County (Head-to-Head Contest)

This map does not display election returns below the county level.

Source: Dave Leip's Atlas of US Presidential Elections, 12/03/04.

Map 12 -- Party Affiliation (State Senate) 2007

Source: State legislature websites

Map 13 -- Party Affiliation (State House) 2007

See Map 12 note

108th Congress Constituency Charts

FairData, in association with Techpolitics, has developed charts of key constituency data for the 108th Congress.

Note: Boundary changes for the 109th and 110th Congress in Georgia, Texas, Maine, and Pennsylvania are not reflected in these charts.

Each .pdf file is a 32-page report (charts and tables) depicting socio-economic characteristics by race and ethnicity from the 2000 census.

Click here for thousands of similar chart reports at state, county and city levels -- with a keyword link for a fast download of the primary source data from the Census Bureau.

Source: Census 2000 Summary File 3 (SF 3) Sample Data

Click here for 109th Congress profile data with percentage calculations prepared by the Census Bureau (no socio-economic race detail)

FairPlan FairData