Oregon State Senate District 12

State Legislative District Profile (Upper Chamber)

Overview

District ID
or-sd-012
State
Oregon
Chamber
Upper chamber (state senate)
District Code
012
Land Area
1,419 sq mi
Water Area
4.41 sq mi

Boundary

Boundary of Oregon State Senate District 12

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Polk County716.01 sq mi50.5%96.6%
Yamhill County703.01 sq mi49.5%98.2%

Showing all 2 counties

Places

PlaceOverlapShare of district landShare of place land
Grand Ronde CDP19.20 sq mi1.4%100.0%
McMinnville city10.58 sq mi0.7%100.0%
Newberg city5.91 sq mi0.4%98.8%
Dallas city4.91 sq mi0.3%99.9%
Sheridan city2.10 sq mi0.1%99.3%
Fort Hill CDP1.43 sq mi0.1%100.0%
Dundee city1.34 sq mi0.1%100.0%
Falls City city1.20 sq mi0.1%100.0%
Willamina city0.94 sq mi0.1%99.8%
Carlton city0.88 sq mi0.1%99.9%
Lafayette city0.86 sq mi0.1%93.1%
Dayton city0.84 sq mi0.1%100.0%
Amity city0.59 sq mi<0.1%100.0%
Yamhill city0.49 sq mi<0.1%100.0%
Rickreall CDP0.17 sq mi<0.1%100.0%
Salem city0.01 sq mi<0.1%<0.1%

Showing all 16 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
OR District 6141,526100.0%20.0%100.0%
OR District 400.0%0.0%<0.1%

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

Voters

Registered Voters
124,581
Active Voters
104,844 (84.2%)

Party Registration

PartyVotersShare
Democratic29,60723.8%
Republican38,16030.6%
Unaffiliated47,30138.0%
Other parties9,5137.6%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–202479,951 (64.2%)0 (0.0%)0 (0.0%)
2021–202267,530 (54.2%)0 (0.0%)0 (0.0%)
2019–202077,446 (62.2%)0 (0.0%)0 (0.0%)
2017–201858,703 (47.1%)0 (0.0%)0 (0.0%)
2015–201661,451 (49.3%)0 (0.0%)0 (0.0%)
2013–201445,891 (36.8%)0 (0.0%)0 (0.0%)
2011–201249,924 (40.1%)0 (0.0%)0 (0.0%)

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 10/02/2025. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
143,265 (± 868)
Median Age
40.6
Median Household Income
$86,741 (± $3,926)
High School Graduate or Higher (age 25+)
90.0%
Bachelor's Degree or Higher (age 25+)
28.1%

Population by Age

GroupPeopleShare
Under 1829,07820.3%
18 to 6485,42659.6%
65 and over28,76120.1%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)22,73615.9%
White, not Hispanic106,48074.3%
Black, not Hispanic1,1000.8%
Asian, not Hispanic2,1631.5%
American Indian / Alaska Native, not Hispanic1,4401.0%
Native Hawaiian / Pacific Islander, not Hispanic3070.2%
Some other race, not Hispanic1,1380.8%
Two or more races, not Hispanic7,9015.5%

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
137,323
Citizen Voting Age Population (CVAP)
108,433

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic119,27186.9%
Hispanic18,05113.1%
White109,12679.5%
Black1,0730.8%
Asian1,7801.3%
American Indian / Alaska Native1,4401.0%
Native Hawaiian / Pacific Islander2720.2%
Two or More Races4540.3%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic97,56290.0%
Hispanic10,86910.0%
White90,24183.2%
Black1,4841.4%
Asian2,2622.1%
American Indian / Alaska Native3,1912.9%
Native Hawaiian / Pacific Islander2410.2%
Two or More Races1610.1%

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