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
GroupDecatur CountyTennesseeUnited States
American16.1%11.3%5.3%
Irish13.1%9.3%9.4%
English10.9%13.3%9.5%
German7.3%9.1%12.5%
Italian1.7%2.2%4.8%
Scottish1.7%2.2%1.3%
Norwegian1.1%——
Polish0.8%—2.2%
Mexican2.3%3.8%11.3%
Puerto Rican0.5%0.6%1.8%
Cuban0.4%0.2%0.7%
Salvadoran0.3%0.2%0.7%
African1.4%0.6%0.5%
African American†1.0%14.3%9.9%
Cape Verdean0.2%——
Asian Indian1.3%0.5%1.4%
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
Decatur County
Tennessee
United States
Median age
45.8
39.3
39.1
Age 18–24
6.0%
8.9%
9.2%
Age 65 and older
23.8%
17.1%
17.2%
Household economy
Measure
Decatur County
Tennessee
United States
Median household income
$45,375
$69,595
$84,427
Poverty rate
22.1%
13.8%
12.5%
Bachelor's degree or higher (25+)
14.0%
31.3%
35.6%
Languages at home
Measure
Decatur County
Tennessee
United States
Speaks a non-English language at home
3.5%
8.7%
22.3%
Spanish
1.8%
5.3%
13.6%
Other Indo-European
1.3%
0.7%
2.0%
Religious landscape
Measure
Decatur County
Tennessee
United States
Catholic
0.4%
4.0%
18.6%
Evangelical Protestant
46.0%
36.6%
16.5%
Unclaimed / not counted
44.2%
44.5%
51.5%
Mainline Protestant
6.8%
6.5%
5.2%
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.
Decatur County, Tennessee
Precinct data
Results by precinct
9 precincts · 5,466 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
Decatur County precinct-level presidential election results for 2024
Precinct -1-11-1
110
597
4
711
15.5%
84.0%
R+68.5
Precinct -8-18-1
75
568
6
649
11.6%
87.5%
R+76.0
Precinct -7-17-1
92
533
8
633
14.5%
84.2%
R+69.7
Precinct -4-14-1
134
492
6
632
21.2%
77.8%
R+56.6
Precinct -3-13-1
100
516
7
623
16.1%
82.8%
R+66.8
Precinct -2-12-1
69
531
6
606
11.4%
87.6%
R+76.2
Precinct -9-19-1
61
522
6
589
10.4%
88.6%
R+78.3
Precinct -5-15-1
110
428
3
541
20.3%
79.1%
R+58.8
Precinct -6-16-1
68
409
5
482
14.1%
84.9%
R+70.7
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1892
+12.0%
1896
−0.2%
1900
+2.8%
1904
−7.4%
1908
−6.5%
1912
+21.2%
1916
−0.3%
1920
−16.5%
1924
+4.6%
1928
+3.9%
1932
+25.5%
1936
+24.1%
1940
+17.9%
1944
+10.1%
1948
+9.1%
1952
+8.9%
1956
+1.4%
1960
−11.8%
1964
+11.8%
1968
−13.9%
1972
−32.3%
1976
+19.3%
1980
+1.0%
1984
−8.1%
1988
−9.7%
1992
+20.7%
1996
+13.0%
2000
+5.3%
2004
−6.1%
2008
−32.2%
2012
−37.0%
2016
−58.7%
2020
−63.4%
2024
−69.1%
DemocraticRepublican
38 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.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
15.0%Harris819
84.1%Trump4,596
0.5%Kennedy28 +4
R+69.1
R+5.7
R+67.6
5,466
All 7 candidates in 2024 · 5 minor / independent
Donald J TrumpRepublican84.1%4,596
Kamala D HarrisDemocratic15.0%819
Robert F Kennedy Jr.Independent0.5%28
Jay J BowmanIndependent0.3%14
Jill SteinIndependent0.1%4
Claudia De La CruzIndependent0.1%3
Rachele FruitIndependent0.0%2
R
17.2%Biden904
80.7%Trump4,229
0.8%West42
R+63.4
R+4.8
R+67.9
5,241
R
19.5%Clinton894
78.1%Trump3,588
1.5%Johnson70
R+58.7
R+21.7
R+60.8
4,592
R
30.7%Obama1,303
67.6%Romney2,874
1.7%
R+37.0
R+4.7
R+40.8
4,251
R
32.9%Obama1,566
65.1%McCain3,101
2.0%
R+32.2
R+26.1
R+39.5
4,763
R
46.5%Kerry2,268
52.6%Bush2,566
0.9%
R+6.1
R+11.4
R+3.7
4,879
D
52.1%Gore2,278
46.8%Bush2,046
0.5%Nader22
D+5.3
R+7.7
D+4.8
4,370
D
53.6%Clinton2,262
40.5%Dole1,712
5.4%Perot229
D+13.0
R+7.7
D+4.5
4,224
D
56.5%Clinton2,633
35.8%Bush1,667
7.5%Perot351
D+20.7
D+30.4
D+15.2
4,661
R
44.9%Dukakis1,880
54.5%Bush2,286
0.6%
R+9.7
R+1.6
R+2.0
4,191
R
45.7%Mondale2,031
53.8%Reagan2,390
0.5%
R+8.1
R+9.1
D+10.1
4,441
D
50.0%Carter2,139
48.9%Reagan2,095
1.1%
D+1.0
R+18.3
D+10.8
4,280
D
59.1%Carter2,432
39.8%Ford1,637
1.1%
D+19.3
D+51.6
D+17.3
4,116
R
32.5%McGovern1,187
64.8%Nixon2,368
2.7%
R+32.3
R+18.4
R+9.2
3,655
O
22.9%Humphrey877
36.8%Nixon1,409
40.3%
Wallace +3.5
R+25.7
R+13.2
3,830
D
55.9%Johnson1,813
44.1%Goldwater1,429
0.0%
D+11.8
D+23.6
R+10.7
3,242
R
43.0%Kennedy1,321
54.8%Nixon1,684
2.3%
R+11.8
R+13.2
R+12.0
3,075
D
50.1%Stevenson1,554
48.8%Eisenhower1,512
1.1%
D+1.4
R+7.5
D+16.8
3,101
D
54.2%Stevenson1,681
45.4%Eisenhower1,406
0.4%
D+8.9
R+0.2
D+19.6
3,100
D
51.8%Truman1,565
42.7%Dewey1,291
5.4%
D+9.1
R+1.1
D+4.6
3,020
D
54.8%Roosevelt1,515
44.7%Dewey1,235
0.5%
D+10.1
R+7.7
D+2.6
2,763
D
58.8%Roosevelt1,832
40.9%Willkie1,275
0.3%
D+17.9
R+6.2
D+7.9
3,117
D
62.0%Roosevelt1,502
38.0%Landon919
0.0%
D+24.1
R+1.4
R+0.2
2,421
D
62.1%Roosevelt1,020
36.6%Hoover601
1.3%
D+25.5
D+21.6
D+7.7
1,643
D
52.0%Smith809
48.0%Hoover748
0.0%
D+3.9
R+0.7
D+21.4
1,557
D
51.7%Davis877
47.1%Coolidge799
1.2%La Follette20
D+4.6
D+21.1
D+29.8
1,696
R
41.3%Cox1,149
57.8%Harding1,608
0.8%
R+16.5
R+16.2
D+9.7
2,780
R
49.4%Wilson887
49.7%Hughes893
0.9%
R+0.3
R+21.5
R+3.5
1,797
D
45.4%Wilson758
24.3%Taft405
30.3%
D+21.2
D+27.7
D+1.6
1,669
R
46.7%Bryan1,284
53.2%Taft1,464
0.1%
R+6.5
D+0.9
D+3.0
2,752
R
45.3%Parker1,095
52.7%Roosevelt1,274
2.0%
R+7.4
R+10.2
D+12.3
2,417
D
50.4%Bryan1,528
47.6%McKinley1,442
2.0%
D+2.8
D+3.1
D+10.4
3,030
R
49.4%Bryan1,626
49.6%McKinley1,633
1.0%
R+0.2
R+12.2
D+5.9
3,292
D
53.3%Cleveland860
41.4%Harrison667
5.3%
D+12.0
—
D+10.3
1,612
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Congressional elections · 3 Senate races
U.S. Senate
Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.
Year
Won
Democratic
Republican
Total
2024
R
15.3%811
82.9%4,410
5,318
2020
R
16.2%817
80.9%4,075
5,039
2018
R
27.8%1,080
70.1%2,718
3,878
voter registration
Registered voters
Total registered voters, over time
Registered voters
Voter registration in Decatur County, TN
Year
Total registered
2016
7,352
2018
7,242
2020
7,319
2022
7,553
2024
7,761
domestic migration
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+171 net domestic migration · 2025
20112025
Net +1,194 over 2011–2025 · gain loss
Arrivals reported $46,933 in average income, against $59,014 for residents who stayed — 20% lower. (IRS SOI, 2022–23)
The places arrivals came from lean R+67.9 on average — 1.2 points more Democratic-leaning than Decatur County, TN itself (R+69.1).
Where arrivals came from lean of each source
Henderson County, TN57R+67.9
Where departures went households, 2022–23
Henderson County, TN64
Migration is one input to a place’s political change, not its cause — a shift can also come from residents changing their minds, generational turnover, or turnout. These figures describe the places people moved between; they do not measure how any mover voted.
Domestic migration in Decatur County, TN in Decatur County, TN: net domestic migration by year
Year
Net domestic migration
2011
+7
2012
+5
2013
+73
2014
+30
2015
−28
2016
+169
2017
+65
2018
+23
2019
+7
2021
+89
2022
+245
2023
+208
2024
+130
2025
+171
Decatur County's R+69.1 margin in 2024 places it among the most one-sided counties in the state, reflecting a rural, small-population electorate that has shifted decisively toward Republican candidates over the past two decades.
Across the recorded series it reached a Democratic high of 25.5 points in 1932 and a Republican high of 69.1 points in 2024. Between 2020 and 2024 the county moved 5.7 points toward the Republican candidate; the 2024 margin was 69.1 points.
A population of 11,579, a 90% non-Hispanic-white share, and a median household income of $45,375 describe the county. The county's voting pattern over the last decade is most similar to that of Izard County and Jackson County.
Akashic
Political twins — counties
The counties 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.
In 2024, Decatur County, Tennessee voted Republican by 69.1 points (R+69.1), carried by the Republican candidate. Out of 5,466 votes cast, 819 went Democratic and 4,596 went Republican.
When did Decatur County, Tennessee last vote Democratic?
The most recent presidential election in which Decatur County, Tennessee voted Democratic was 2000.
How many people live in Decatur County, Tennessee?
Decatur County, Tennessee has a population of 11,579 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Decatur County, Tennessee?
Median household income in Decatur County, Tennessee is $45,375 — below the national median of $80,734. The Tennessee state median is $69,595.
What is the political history of Decatur County, Tennessee?
Akashic tracks 38 presidential elections in Decatur County, Tennessee from 1876 to 2024. Of those, 18 went Democratic and 15 went Republican.
