Indiana State Senate District 21

State Legislative District Profile (Upper Chamber)

Overview

District ID
in-sd-021
State
Indiana
Chamber
Upper chamber (state senate)
District Code
021
Land Area
455.6 sq mi
Water Area
0.52 sq mi

Boundary

Boundary of Indiana State Senate District 21

Boundary as GeoJSON

Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.

Counties

CountyOverlapShare of district landShare of county land
Tipton County260.54 sq mi57.2%100.0%
Hamilton County103.98 sq mi22.8%26.4%
Howard County91.09 sq mi20.0%31.1%

Showing all 3 counties

Places

PlaceOverlapShare of district landShare of place land
Kokomo city36.68 sq mi8.1%100.0%
Westfield city31.09 sq mi6.8%95.2%
Tipton city2.63 sq mi0.6%95.9%
Sheridan town2.07 sq mi0.5%82.2%
Russiaville town0.88 sq mi0.2%98.3%
Windfall City town0.41 sq mi0.1%100.0%
Sharpsville town0.23 sq mi0.1%100.0%
Kempton town0.16 sq mi<0.1%99.8%
Carmel city0.06 sq mi<0.1%0.1%
Elwood city0.00 sq mi<0.1%0.1%

Showing all 10 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
IN District 5136,16199.1%18.1%97.5%
IN District 41,2430.9%0.2%2.5%

Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).

Voters

Registered Voters
110,485
Active Voters
110,485 (100.0%)

Party Registration

This state's voter file does not record party registration.

Browse the voter list for this district (premium access; sign-in required)

Source: Civitech voter file snapshot as of 12/24/2025. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
146,188 (± 454)
Median Age
39.0
Median Household Income
$79,903 (± $3,580)
High School Graduate or Higher (age 25+)
93.4%
Bachelor's Degree or Higher (age 25+)
35.1%

Population by Age

GroupPeopleShare
Under 1834,70823.7%
18 to 6486,24259.0%
65 and over25,23817.3%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)8,3405.7%
White, not Hispanic118,06080.8%
Black, not Hispanic9,5396.5%
Asian, not Hispanic3,2762.2%
American Indian / Alaska Native, not Hispanic340.0%
Native Hawaiian / Pacific Islander, not Hispanic210.0%
Some other race, not Hispanic8830.6%
Two or more races, not Hispanic6,0354.1%

Source: U.S. Census Bureau, American Community Survey 2020-2024 ACS 5-year estimates (tables B01001, B01002, B01003, B03002, B15003, B19013) for this state legislative district. Estimates are survey-based; ± figures are 90% margins of error.

Citizen Voting Age Population

Total Citizen Population
143,013
Citizen Voting Age Population (CVAP)
108,506

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic136,32895.3%
Hispanic6,6844.7%
White119,34083.4%
Black9,5966.7%
Asian2,4161.7%
American Indian / Alaska Native320.0%
Native Hawaiian / Pacific Islander80.0%
Two or More Races4330.3%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic104,35796.2%
Hispanic4,1483.8%
White93,23285.9%
Black8,2547.6%
Asian1,9971.8%
American Indian / Alaska Native7590.7%
Native Hawaiian / Pacific Islander90.0%
Two or More Races1930.2%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).