Ohio State Senate District 21

State Legislative District Profile (Upper Chamber)

Overview

District ID
oh-sd-021
State
Ohio
Chamber
Upper chamber (state senate)
District Code
021
Land Area
90.5 sq mi
Water Area
1.58 sq mi

Boundary

Boundary of Ohio 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
Cuyahoga County90.52 sq mi100.0%19.8%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Cleveland city12.96 sq mi14.3%16.7%
Euclid city10.66 sq mi11.8%100.0%
Cleveland Heights city8.07 sq mi8.9%100.0%
Garfield Heights city7.23 sq mi8.0%100.0%
Shaker Heights city6.29 sq mi7.0%100.0%
Bedford city5.34 sq mi5.9%100.0%
Beachwood city5.26 sq mi5.8%100.0%
Maple Heights city5.17 sq mi5.7%100.0%
South Euclid city4.66 sq mi5.1%100.0%
Bedford Heights city4.55 sq mi5.0%100.0%
Lyndhurst city4.43 sq mi4.9%100.0%
Warrensville Heights city4.12 sq mi4.6%100.0%
Orange village3.81 sq mi4.2%100.0%
East Cleveland city3.08 sq mi3.4%100.0%
Highland Hills village1.96 sq mi2.2%100.0%
University Heights city1.83 sq mi2.0%100.0%
North Randall village0.78 sq mi0.9%100.0%
Woodmere village0.33 sq mi0.4%99.9%

Showing all 18 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
OH District 11375,348100.0%47.7%100.0%

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

Voters

Registered Voters
262,210
Active Voters
212,786 (81.2%)

Party Registration

PartyVotersShare
Democratic54,78520.9%
Republican10,8514.1%
Unaffiliated00.0%
Other parties00.0%
No party recorded196,57475.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202668,140 (26.0%)17,953 (6.8%)3,031 (1.2%)
2023–2024169,099 (64.5%)40,486 (15.4%)8,354 (3.2%)
2021–2022114,173 (43.5%)58,896 (22.5%)9,035 (3.4%)
2019–2020168,085 (64.1%)47,485 (18.1%)4,992 (1.9%)
2017–2018132,391 (50.5%)42,738 (16.3%)6,369 (2.4%)
2015–2016154,051 (58.8%)66,706 (25.4%)16,363 (6.2%)
2013–201486,725 (33.1%)30,244 (11.5%)4,196 (1.6%)
2011–2012147,078 (56.1%)33,317 (12.7%)7,741 (3.0%)

Turnout counts today's registered voters with a counted ballot in the cycle's elections (the odd and even year), as a share of today's registered voters. Voters who have since left the rolls are not counted.

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

Source: Civitech voter file snapshot as of 01/20/2026. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
367,596 (± 2,398)
Median Age
40.5
Median Household Income
$55,687 (± $1,630)
High School Graduate or Higher (age 25+)
92.0%
Bachelor's Degree or Higher (age 25+)
34.8%

Population by Age

GroupPeopleShare
Under 1879,87821.7%
18 to 64212,61157.8%
65 and over75,10720.4%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)10,7442.9%
White, not Hispanic118,67032.3%
Black, not Hispanic212,93057.9%
Asian, not Hispanic7,3562.0%
American Indian / Alaska Native, not Hispanic2280.1%
Native Hawaiian / Pacific Islander, not Hispanic150.0%
Some other race, not Hispanic3,3950.9%
Two or more races, not Hispanic14,2583.9%

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
359,582
Citizen Voting Age Population (CVAP)
281,002

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic349,90597.3%
Hispanic9,6782.7%
White119,48733.2%
Black213,96259.5%
Asian4,9101.4%
American Indian / Alaska Native2220.1%
Native Hawaiian / Pacific Islander140.0%
Two or More Races2,0590.6%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic274,38097.6%
Hispanic6,6202.4%
White100,43435.7%
Black166,87059.4%
Asian4,7871.7%
American Indian / Alaska Native1,4560.5%
Native Hawaiian / Pacific Islander150.0%
Two or More Races1,5450.5%

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