akashic
1876–2024
State Senate District 21·Kansas

Kansas 21st State Senate District delivered D+8 in 2024.

One of Kansas's most reliably Republican legislative districts

1876 — 2024·38 elections
KS
Latest
D+8
in 2024
Archetype
Bellwether
since the recent cycles
Population
37,259
2024 ACS

Kansas 21st State Senate District, Kansas: Bellwether district. In 2024, voted D+8%. Republican peak: R+50 in 1972.

Key facts

2024 presidential margin
D+8MIT Election Lab
Political archetype
BellwetherAkashic typology
Population
37,2592024 5-year
Median household income
$109,2082024 5-year
White (non-Hispanic)
78.5%2024 5-year
Black
4.9%2024 5-year
Hispanic / Latino
9.3%2024 5-year
Peak Democratic margin
D+23 in 1912MIT Election Lab
Peak Republican margin
R+50 in 1972MIT Election Lab
2024 results by constituent county
1 counties · 1 D · 0 R
R+60
D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonMarginDemocraticRepublicanTotal
D
+8.4%
11,0139,26020,824
D
+8.2%
11,0629,34320,845
R
−2.6%
7,7968,25417,663
R
−17.4%
6,6359,51016,514
R
−9.0%
7,6309,16317,016
R
−23.3%
5,8759,49215,530
R
−23.4%
4,7507,80213,060
R
−22.1%
4,0906,62611,460
R
−13.3%
3,5765,12811,699
R
−26.6%
3,3135,7399,137
R
−45.4%
2,2826,1238,458
R
−36.2%
1,9944,6867,443
R
−35.2%
2,1384,5506,852
R
−50.5%
1,4604,5726,167
R
−33.0%
1,5633,3055,278
R
−9.3%
1,8742,2624,153
R
−32.5%
1,3162,5833,904
R
−42.9%
8522,1322,986
R
−45.1%
6601,7472,411
R
−22.3%
5398521,403
R
−34.8%
3467171,067
R
−28.3%
346620969
R
−15.7%
367504874
O
+0.0%
389389786
R
−41.4%
202491698
R
−38.8%
151366554
R
−30.2%
138260404
D
+2.1%
236226474
D
+22.7%
11050264
R
−4.8%
126139271
R
−28.5%
82154253
R
−5.0%
130144278
D
+3.1%
148139290
O
−47.2%
0116246
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Demographics

Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
23.7%
English
15.4%
Irish
14.0%
American
4.4%
Italian
3.2%
Scottish
2.2%
French
2.1%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Age distribution by sex
Median age: 38.6 in this county, 39.1 nationally
Male
Age
Female
0.6%
85+
1.2%
2.0%
75–84
2.5%
4.5%
65–74
5.1%
5.8%
55–64
6.2%
6.3%
45–54
6.3%
7.3%
35–44
7.2%
6.8%
25–34
6.6%
4.1%
18–24
3.9%
9.0%
5–17
8.6%
3.0%
<5
2.9%
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$109,208
State Senate District 21 ranks near the middle of US counties.
State Senate District 21$109,208
Kansas$74,275
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
5.4%
Child poverty is below the national average.
Children under 185.2%
Working age (18–64)5.3%
Seniors (65+)7.5%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
87.9%
speak English only
Spanish5.3%
Asian & Pacific Islander2.8%
Other Indo-European2.7%
Other languages1.3%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Catholic & Orthodox
16.7%
Other Christian
10.0%
Methodist
6.3%
Mainline Protestant
4.8%
Baptist
3.8%
Non-Christian
2.5%
Pentecostal & Holiness
2.5%
Source · 2020 US Religion Census. Remaining 53.4% of residents not counted as adherents by any reporting body.

With a 2024 presidential margin of R+52.9, this district sits among the most one-sided in the state, reflecting the deep-red rural and small-town political geography that defines much of western or central Kansas.

The Democratic margin in Kansas 21st State Senate District has rarely exceeded twenty-three points in modern history; the Republican margin has rarely exceeded fifty points. 2024 delivered the district to the Democratic candidate by eight points.

Its demographics resemble the country more than they resemble most districts. A 79% non-Hispanic-white share, a 5% poverty rate, and a median household income of $109,208 — all within the broad national range.

Compare two places, side by side

Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →

Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
State Senate District 21, Kansas. Akashic. https://akashic.app/sld-upper/20021/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0

Frequently asked questions

How did State Senate District 21, Kansas vote in 2024?
In 2024, State Senate District 21, Kansas voted Democratic by 8.4 points (D+8), carried by the Democratic candidate. Out of 20,824 votes cast, 11,013 went Democratic and 9,260 went Republican.
What is State Senate District 21, Kansas's political archetype?
Akashic classifies State Senate District 21, Kansas as a "Bellwether" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 5 times, Republican 27 times, and other 2 times.
When did State Senate District 21, Kansas last vote Republican?
The most recent presidential election in which State Senate District 21, Kansas voted Republican was 2016.
How many people live in State Senate District 21, Kansas?
State Senate District 21, Kansas has a population of 37,259 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in State Senate District 21, Kansas?
Median household income in State Senate District 21, Kansas is $109,208 — above the national median of $80,734. The Kansas state median is $74,275.
What is the political history of State Senate District 21, Kansas?
Akashic tracks 38 presidential elections in State Senate District 21, Kansas from 1876 to 2024. Of those, 5 went Democratic and 27 went Republican. The district's archetype — "Bellwether" — captures the overall trajectory of that voting record.