Akashic
1892–2024
Akashic
Spencer, IA
presidential margin
2008R+5.12012R+18.42016R+41.72020R+38.72024R+43.1
full record · 1892 → 2024
R+43.1
2024
median income$65,428U.S. $80,734 · IA $75,059
median age42.3U.S. 39.1 · IA 38.8
poverty rate11.4%U.S. 12.5% · IA 11.1%
bachelor’s+ (25+)27.5%U.S. 35.6% · IA 31.8%
non-english3.2%U.S. 22.3% · IA 9.2%
race · ethnicity · ancestry
German42.9%
Norwegian11.0%
Irish10.1%
Mexican2.8%
Honduran1.6%
religion
other traditions
Other Christian0.9%
American Community Survey 2024 5-year (income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents, unaffiliated is the unclaimed remainder.

Spencer, IA, Iowa

Akashic
Spencer, IATrumpR+43.1
—
2024 presidential margin by county for Spencer, IA, IAA map of the single county of Spencer, IA, IA, outlined and filled by its 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), seated within the faint outlines of the surrounding states.Clay County, IA · R+43.1
How it voted
Share of the 2024 vote
Donald Trump ✓Republican70.8%6,047
Kamala HarrisDemocratic27.7%2,367
Robert F. Kennedy Jr.We The People1.5%127
D+60
R+60
A single county, filled by its 2024 D-vs-R margin. Hover it for the full result.
County-level results (1 county) — table
2024 presidential result by county for Spencer, IA, IA — winner and D-vs-R margin.
CountyWinnerMargin
Clay County, IARepublicanR+43.1
34 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonDemocraticRepublicanOtherMarginTotal
R
27.7%Harris2,367
70.8%Trump6,047
1.5%Kennedy127
−43.1%
8,541
R
29.7%Biden2,662
68.4%Trump6,137
1.9%Jorgensen170
−38.7%
8,969
R
25.8%Clinton2,249
67.5%Trump5,877
6.7%Johnson580
−41.7%
8,706
R
39.8%Obama3,385
58.2%Romney4,951
2.0%Johnson166
−18.4%
8,502
R
46.7%Obama3,925
51.9%McCain4,355
1.4%Nader118
−5.1%
8,398
R
41.3%Kerry3,547
57.0%Bush4,898
1.7%Other143
−15.7%
8,588
R
43.5%Gore3,294
52.7%Bush3,992
3.9%Nader292
−9.2%
7,578
D
47.8%Clinton3,659
40.9%Dole3,129
11.3%Perot867
+6.9%
7,655
D
39.9%Clinton3,346
35.9%Bush3,011
24.1%Perot2,023
+4.0%
8,380
D
53.0%Dukakis4,173
46.3%Bush3,641
0.7%Larouche56
+6.8%
7,870
R
45.4%Mondale3,774
53.5%Reagan4,450
1.1%Larouche92
−8.1%
8,316
R
36.3%Carter3,179
51.1%Reagan4,479
12.6%Anderson1,106
−14.8%
8,764
R
44.4%Carter3,776
53.5%Ford4,548
2.1%McCarthy176
−9.1%
8,500
R
37.5%McGovern2,887
59.3%Nixon4,564
3.2%Schmitz245
−21.8%
7,696
R
37.2%Humphrey2,840
56.7%Nixon4,325
6.1%Wallace463
−19.5%
7,628
D
59.8%Johnson4,631
38.7%Goldwater2,999
1.5%Hass119
+21.1%
7,749
R
39.9%Kennedy3,437
60.0%Nixon5,165
0.0%Byrd2
−20.1%
8,604
R
36.3%Stevenson2,970
62.4%Eisenhower5,107
1.4%Andrews113
−26.1%
8,190
R
26.1%Stevenson2,258
72.6%Eisenhower6,271
1.3%Hallinan112
−46.4%
8,641
D
52.4%Truman3,649
43.6%Dewey3,036
4.0%Thurmond276
+8.8%
6,961
D
54.1%Roosevelt3,639
45.4%Dewey3,055
0.4%Thomas30
+8.7%
6,724
D
53.9%Roosevelt4,328
45.8%Willkie3,673
0.3%Thomas24
+8.2%
8,025
D
61.8%Roosevelt4,691
36.6%Landon2,774
1.6%Lemke121
+25.3%
7,586
D
58.3%Roosevelt3,944
38.4%Hoover2,599
3.3%Thomas226
+19.9%
6,769
R
33.9%Smith2,064
65.5%Hoover3,986
0.6%Thomas35
−31.6%
6,085
R
6.5%Davis378
60.9%Coolidge3,549
32.6%La Follette1,896
−54.5%
5,823
R
17.9%Cox1,001
80.1%Harding4,471
2.0%Debs113
−62.1%
5,585
R
41.5%Wilson1,234
55.4%Hughes1,649
3.1%Benson93
−13.9%
2,976
O
25.0%Wilson707
24.0%Taft679
50.9%Roosevelt1,438
Roosevelt +25.9
2,824
R
28.2%Bryan778
69.7%Taft1,921
2.1%Debs58
−41.5%
2,757
R
17.8%Parker487
78.7%Roosevelt2,154
3.5%Debs96
−60.9%
2,737
R
24.8%Bryan781
72.8%McKinley2,292
2.4%Woolley77
−48.0%
3,150
R
32.7%Bryan933
66.0%McKinley1,880
1.3%Palmer36
−33.2%
2,849
R
27.7%Cleveland654
64.2%Harrison1,516
8.1%Weaver191
−36.5%
2,361
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over timeDemocratic-minus-Republican presidential margin from 1892 to 2024. Most recent: −43.1% in 2024.flipped R · 2000−43.1%DR18922024
Presidential margin over time
YearMargin (D minus R)
1892−36.5%
1896−33.2%
1900−48.0%
1904−60.9%
1908−41.5%
1912+1.0%
1916−13.9%
1920−62.1%
1924−54.5%
1928−31.6%
1932+19.9%
1936+25.3%
1940+8.2%
1944+8.7%
1948+8.8%
1952−46.4%
1956−26.1%
1960−20.1%
1964+21.1%
1968−19.5%
1972−21.8%
1976−9.1%
1980−14.8%
1984−8.1%
1988+6.8%
1992+4.0%
1996+6.9%
2000−9.2%
2004−15.7%
2008−5.1%
2012−18.4%
2016−41.7%
2020−38.7%
2024−43.1%
DemocraticRepublican
voter registration
Registered voters
By party of registration, over time
Voter registration in Spencer, IARegistered voters by party of registration, 2008–2024. Latest total 11,762 in 2024.3.2K6.3K9.5K12.7K11.8K20082024
DemocraticRepublicanUnaffiliatedOther parties
Voter registration in Spencer, IA
YearTotal registeredDemocraticRepublicanUnaffiliatedOther
200812,6282,9924,7344,9002
201012,4832,9424,6594,8757
201212,6952,8414,8345,0155
201412,1822,6554,7804,73512
201612,2862,2306,0543,96735
201811,7992,1335,6963,91456
202012,0612,3405,8883,74885
202211,8762,1555,9343,687100
202411,7622,0136,0053,631113
Source: Iowa Secretary of State

Spencer, IA sits in the Corn Belt. In 2024 it voted Republican.

Across the recorded series it reached a Democratic high of 25.3 points in 1936 and a Republican high of 62.1 points in 1920. Between 2020 and 2024 the metro moved 4.3 points toward the Republican candidate; the 2024 margin was 43.1 points.

A population of 16,461, a 91% non-Hispanic-white share, and a median household income of $65,428 describe the metro. The metro's voting pattern over the last decade is most similar to that of Watertown, SD and Spirit Lake, IA.

Political twins — metros

The metros whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.

Watertown, SD
91.1twin score
elasticity12-yr trend% unaffiliated≠ Norwegian ancestry
Spirit Lake, IA
89.7twin score
population scale12-yr trend% unaffiliated≠ median age
Mitchell, SD
86.4twin score
2016–2024 trajectorypopulation scale≠ French ancestry

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.
Spencer, IA, Iowa. Akashic. https://akashic.app/cbsa/43980/. Accessed May 20, 2026. License: CC BY 4.0.
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Places within Spencer, IA

counties1
Clay County

Frequently asked questions

How did Spencer, IA, Iowa vote in 2024?
In 2024, Spencer, IA, Iowa voted Republican by 43.1 points (R+43.1), carried by the Republican candidate. Out of 8,541 votes cast, 2,367 went Democratic and 6,047 went Republican.
When did Spencer, IA, Iowa last vote Democratic?
The most recent presidential election in which Spencer, IA, Iowa voted Democratic was 1996.
How many people live in Spencer, IA, Iowa?
Spencer, IA, Iowa has a population of 16,461 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Spencer, IA, Iowa?
Median household income in Spencer, IA, Iowa is $65,428 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Spencer, IA, Iowa?
Akashic tracks 34 presidential elections in Spencer, IA, Iowa from 1892 to 2024. Of those, 9 went Democratic and 24 went Republican.