Ohio State Senate District 8

State Legislative District Profile (Upper Chamber)

Overview

District ID
oh-sd-008
State
Ohio
Chamber
Upper chamber (state senate)
District Code
008
Land Area
261.1 sq mi
Water Area
5.05 sq mi

Boundary

Boundary of Ohio State Senate District 8

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Hamilton County261.14 sq mi100.0%64.4%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
The Village of Indian Hill city18.67 sq mi7.1%96.2%
Mack CDP8.91 sq mi3.4%100.0%
Taylor Creek CDP8.57 sq mi3.3%100.0%
Dunlap CDP6.53 sq mi2.5%100.0%
Shawnee CDP6.41 sq mi2.5%100.0%
Dent CDP6.25 sq mi2.4%100.0%
White Oak CDP6.22 sq mi2.4%100.0%
Monfort Heights CDP5.95 sq mi2.3%100.0%
Harrison city5.34 sq mi2.0%100.0%
Dry Run CDP4.76 sq mi1.8%100.0%
Blue Jay CDP4.37 sq mi1.7%100.0%
Grandview CDP4.34 sq mi1.7%99.8%
Bridgetown CDP4.31 sq mi1.7%100.0%
Dry Ridge CDP4.12 sq mi1.6%100.0%
Finneytown CDP4.02 sq mi1.5%100.0%
Miami Heights CDP3.84 sq mi1.5%100.0%
Forestville CDP3.70 sq mi1.4%100.0%
Amberley village3.48 sq mi1.3%100.0%
New Burlington CDP3.41 sq mi1.3%100.0%
Madeira city3.35 sq mi1.3%100.0%
Turpin Hills CDP2.98 sq mi1.1%100.0%
Groesbeck CDP2.93 sq mi1.1%100.0%
Reading city2.89 sq mi1.1%100.0%
Wyoming city2.89 sq mi1.1%100.0%
Covedale CDP2.83 sq mi1.1%100.0%

Showing top 25 of 61 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 8240,89067.2%30.6%70.8%
OH District 1117,34332.8%14.9%29.2%

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

Voters

Registered Voters
267,894
Active Voters
229,515 (85.7%)

Party Registration

PartyVotersShare
Democratic20,9247.8%
Republican43,79216.3%
Unaffiliated00.0%
Other parties00.0%
No party recorded203,17875.8%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202682,191 (30.7%)0 (0.0%)<10 (—)
2023–2024203,809 (76.1%)12,740 (4.8%)32,680 (12.2%)
2021–2022148,214 (55.3%)16,980 (6.3%)34,404 (12.8%)
2019–2020192,279 (71.8%)26,293 (9.8%)23,795 (8.9%)
2017–2018147,357 (55.0%)15,723 (5.9%)23,981 (9.0%)
2015–2016169,492 (63.3%)30,013 (11.2%)63,927 (23.9%)
2013–2014103,525 (38.6%)6,774 (2.5%)16,408 (6.1%)
2011–2012149,909 (56.0%)6,602 (2.5%)33,756 (12.6%)

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
357,345 (± 979)
Median Age
39.9
Median Household Income
$86,666 (± $2,081)
High School Graduate or Higher (age 25+)
94.5%
Bachelor's Degree or Higher (age 25+)
39.1%

Population by Age

GroupPeopleShare
Under 1888,75824.8%
18 to 64202,62056.7%
65 and over65,96718.5%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)10,3662.9%
White, not Hispanic261,01573.0%
Black, not Hispanic57,73716.2%
Asian, not Hispanic6,2981.8%
American Indian / Alaska Native, not Hispanic6280.2%
Native Hawaiian / Pacific Islander, not Hispanic1270.0%
Some other race, not Hispanic1,7650.5%
Two or more races, not Hispanic19,4095.4%

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
351,299
Citizen Voting Age Population (CVAP)
263,431

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic342,79897.6%
Hispanic8,5012.4%
White263,02774.9%
Black57,60616.4%
Asian5,1031.5%
American Indian / Alaska Native6360.2%
Native Hawaiian / Pacific Islander1640.0%
Two or More Races1,1070.3%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic259,27298.4%
Hispanic4,1571.6%
White206,39478.3%
Black43,20116.4%
Asian4,4001.7%
American Indian / Alaska Native5,1792.0%
Native Hawaiian / Pacific Islander700.0%
Two or More Races5330.2%

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