Kansas State Senate District 20

State Legislative District Profile (Upper Chamber)

Overview

District ID
ks-sd-020
State
Kansas
Chamber
Upper chamber (state senate)
District Code
020
Land Area
964.6 sq mi
Water Area
8.22 sq mi

Boundary

Boundary of Kansas State Senate District 20

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Wabaunsee County794.34 sq mi82.4%100.0%
Shawnee County170.24 sq mi17.6%31.3%

Showing all 2 counties

Places

PlaceOverlapShare of district landShare of place land
Topeka city20.95 sq mi2.2%33.8%
Wakarusa CDP4.96 sq mi0.5%100.0%
Wabaunsee CDP1.36 sq mi0.1%100.0%
Newbury CDP0.90 sq mi0.1%100.0%
Auburn city0.70 sq mi0.1%100.0%
Alma city0.58 sq mi0.1%99.9%
Eskridge city0.52 sq mi0.1%100.0%
Alta Vista city0.35 sq mi<0.1%100.0%
Maple Hill city0.24 sq mi<0.1%99.8%
McFarland city0.18 sq mi<0.1%99.7%
Paxico city0.14 sq mi<0.1%99.9%
Harveyville city0.13 sq mi<0.1%94.4%
Wamego city0.03 sq mi<0.1%1.3%
Willard city0.00 sq mi<0.1%4.3%
St. Marys city0.00 sq mi<0.1%0.1%

Showing all 15 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
KS District 273,301100.0%10.0%100.0%

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

Voters

Registered Voters
51,791
Active Voters
48,979 (94.6%)

Party Registration

PartyVotersShare
Democratic13,70326.5%
Republican22,69343.8%
Unaffiliated14,72228.4%
Other parties6731.3%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–202438,473 (74.3%)0 (0.0%)0 (0.0%)
2021–202230,753 (59.4%)0 (0.0%)0 (0.0%)
2019–202036,380 (70.2%)0 (0.0%)0 (0.0%)
2017–201828,788 (55.6%)0 (0.0%)0 (0.0%)
2015–201629,474 (56.9%)0 (0.0%)0 (0.0%)
2013–201422,811 (44.0%)0 (0.0%)0 (0.0%)
2011–201223,279 (44.9%)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 11/03/2025. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
72,593 (± 1,555)
Median Age
42.4
Median Household Income
$77,378 (± $2,797)
High School Graduate or Higher (age 25+)
96.7%
Bachelor's Degree or Higher (age 25+)
39.4%

Population by Age

GroupPeopleShare
Under 1815,97022.0%
18 to 6440,09955.2%
65 and over16,52422.8%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)6,7659.3%
White, not Hispanic56,70978.1%
Black, not Hispanic3,1324.3%
Asian, not Hispanic1,6072.2%
American Indian / Alaska Native, not Hispanic810.1%
Native Hawaiian / Pacific Islander, not Hispanic370.1%
Some other race, not Hispanic3730.5%
Two or more races, not Hispanic3,8895.4%

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
71,354
Citizen Voting Age Population (CVAP)
55,639

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic64,86890.9%
Hispanic6,4869.1%
White57,34280.4%
Black3,0964.3%
Asian1,0421.5%
American Indian / Alaska Native830.1%
Native Hawaiian / Pacific Islander380.1%
Two or More Races1720.2%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic51,95393.4%
Hispanic3,6856.6%
White46,47583.5%
Black3,3496.0%
Asian1,1062.0%
American Indian / Alaska Native9131.6%
Native Hawaiian / Pacific Islander230.0%
Two or More Races1060.2%

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