state senate districtIowa 16th State Senate District
presidential margin
2004–2024 · Democratic minus Republican
2004R+4.7
2008D+5.6
2012D+1.8
2016D+10.4
2020D+19.2
2024D+17.3
net swing · 2004→2024D+22.0R+4.7 → D+17.3
vs. U.S. · 2024D+18.7D+17.3 vs R+1.5
presidential returns
2024 turnout 76.7% of 47,180 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
20,887
14,644
641
36,172
47,180
76.7%
2020
22,200
14,913
742
37,855
45,327†
83.5%
2016
18,295
14,585
2,841
35,721
42,592†
83.9%
2012
18,626
17,939
698
37,263
40,060†
93.0%
2008
18,240
16,288
498
35,026
38,769†
90.3%
2004
15,785
17,350
89
33,224
37,478†
88.6%
† Citizen voting-age population estimated for prior cycles from the constituent-county ACS trend anchored to the current figure. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupIA SD 16IowaUnited States
German26.0%30.5%12.5%
Irish14.1%12.8%9.4%
English12.5%10.2%9.5%
Norwegian3.9%4.1%—
American3.5%4.6%5.3%
Italian3.4%1.6%4.8%
Dutch2.8%2.7%—
Swedish2.7%1.9%—
Mexican5.3%5.0%11.3%
Salvadoran0.7%0.3%0.7%
Puerto Rican0.5%0.3%1.8%
Honduran0.3%0.2%0.3%
Guatemalan0.2%0.4%0.5%
Spaniard0.2%——
Burmese1.1%0.3%—
Asian Indian1.0%0.5%1.4%
Vietnamese0.7%0.3%0.6%
Laotian0.6%0.2%—
Chinese0.5%0.3%1.3%
Korean0.2%0.2%0.4%
Nepalese0.2%——
Filipino0.2%0.2%0.9%
African American†3.6%2.6%9.9%
Sudanese0.6%0.2%—
Liberian0.6%——
African0.3%0.3%0.5%
Somali0.2%——
Nigerian0.2%—0.2%
Ethiopian0.2%——
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
IA SD 16
Iowa
United States
Median age
37.7
38.8
39.1
Age 18–24
8.8%
10.0%
9.2%
Age 65 and older
13.9%
18.1%
17.2%
Household economy
Measure
IA SD 16
Iowa
United States
Median household income
$88,200
$75,059
$84,427
Poverty rate
8.2%
11.1%
12.5%
Bachelor's degree or higher (25+)
40.4%
31.8%
35.6%
Languages at home
Measure
IA SD 16
Iowa
United States
Speaks a non-English language at home
14.7%
9.2%
22.3%
Spanish
7.0%
4.7%
13.6%
Russian, Polish, or other Slavic
1.0%
0.4%
0.7%
Other Asian & Pacific Island
2.3%
1.0%
1.1%
Other languages
1.4%
0.6%
0.8%
Religious landscape
Measure
IA SD 16
Iowa
United States
Catholic
—
14.7%
18.6%
Evangelical Protestant
—
10.9%
16.5%
Unclaimed / not counted
—
55.2%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Iowa 16th State Senate District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−4.7%
2008
+5.6%
2012
+1.8%
2016
+10.4%
2020
+19.2%
2024
+17.3%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
57.7%Harris20,887
40.5%Trump14,644
1.8%
D+17.3
R+2.0
D+18.7
36,172
D
58.6%Biden22,200
39.4%Trump14,913
2.0%
D+19.2
D+8.9
D+14.8
37,855
D
51.2%Clinton18,295
40.8%Trump14,585
8.0%
D+10.4
D+8.5
D+8.3
35,721
D
50.0%Obama18,626
48.1%Romney17,939
1.9%
D+1.8
R+3.7
R+2.0
37,263
D
52.1%Obama18,240
46.5%McCain16,288
1.4%
D+5.6
D+10.3
R+1.7
35,026
R
47.5%Kerry15,785
52.2%Bush17,350
0.3%
R+4.7
—
R+2.3
33,224
current representation
Current officeholders
DRenee HardmanState Senate · 16
State legislative officeholder from OpenStates nightly current-legislator data.
With a 2024 presidential margin of R+42.3, this rural Iowa district ranks among the state's most one-sided, reflecting the decades-long political realignment that has reshaped small-town and agricultural communities across the region.
Across the recorded series it reached a Democratic high of 19.2 points in 2020 and a Republican high of 4.7 points in 2004. Between 2020 and 2024 the district moved 2.0 points toward the Republican candidate; the 2024 margin was 17.3 points.
A population of 64,223, a 76% non-Hispanic-white share, and a median household income of $88,200 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 22 and State Senate District 29.
Akashic
Political twins — state-senate districts
The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
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.
Iowa 16th State Senate District. Akashic. https://akashic.app/sld-upper/19016/. Accessed May 20, 2026. License: CC BY 4.0.
How did Iowa 16th State Senate District vote in 2024?
In 2024, Iowa 16th State Senate District voted Democratic by 17.3 points (D+17.3), carried by the Democratic candidate. Out of 36,172 votes cast, 20,887 went Democratic and 14,644 went Republican.
When did Iowa 16th State Senate District last vote Republican?
The most recent presidential election in which Iowa 16th State Senate District voted Republican was 2004.
How many people live in Iowa 16th State Senate District?
Iowa 16th State Senate District has a population of 64,223 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Iowa 16th State Senate District?
Median household income in Iowa 16th State Senate District is $88,200 — above the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Iowa 16th State Senate District?
Akashic tracks 6 presidential elections in Iowa 16th State Senate District from 2004 to 2024. Of those, 5 went Democratic and 1 went Republican.
