Jefferson County, Mississippi: Black Belt county. In 2024, voted D+66%. Democratic peak: D+98 in 1916.
Key facts
- 2024 presidential margin
- D+66MIT Election Lab
- Political typology
- Black BeltAkashic typology
- Population
- 7,0682024 5-year
- Median household income
- $38,3052024 5-year
- White (non-Hispanic)
- 13.1%2024 5-year
- Black
- 82.9%2024 5-year
- Hispanic / Latino
- 2.0%2024 5-year
- Peak Democratic margin
- D+98 in 1916MIT Election Lab
- Peak Republican margin
- R+90 in 1964MIT Election Lab
- Most similar
- Greene County, AL · similarity 1.00
2024 results by precinct
2024 precinct map of Jefferson CountyPrecinct-level 2024 presidential results for Jefferson County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | +88.5% |
| 1896 | +83.4% |
| 1900 | +92.7% |
| 1904 | No data |
| 1908 | No data |
| 1912 | +94.2% |
| 1916 | +98.5% |
| 1920 | +93.5% |
| 1924 | +81.7% |
| 1928 | +85.9% |
| 1932 | +93.2% |
| 1936 | +97.9% |
| 1940 | +98.3% |
| 1944 | +93.7% |
| 1948 | +0.1% |
| 1952 | −6.2% |
| 1956 | +26.1% |
| 1960 | +8.4% |
| 1964 | −89.6% |
| 1968 | +58.4% |
| 1972 | +12.5% |
| 1976 | +52.0% |
| 1980 | +56.9% |
| 1984 | +56.1% |
| 1988 | +58.5% |
| 1992 | +63.4% |
| 1996 | +65.5% |
| 2000 | +64.1% |
| 2004 | +63.2% |
| 2008 | +74.4% |
| 2012 | +78.6% |
| 2016 | +73.8% |
| 2020 | +71.5% |
| 2024 | +66.3% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 2,727 | 541 | 3,299 | ||
| D | 3,327 | 531 | 3,908 | ||
| D | 3,337 | 490 | 3,860 | ||
| D | 3,951 | 468 | 4,433 | ||
| D | 3,883 | 551 | 4,478 | ||
| D | 2,821 | 630 | 3,469 | ||
| D | 2,786 | 600 | 3,408 | ||
| D | 2,531 | 489 | 3,119 | ||
| D | 2,796 | 562 | 3,522 | ||
| D | 2,693 | 702 | 3,401 | ||
| D | 3,049 | 856 | 3,912 | ||
| D | 2,871 | 751 | 3,724 | ||
| D | 2,562 | 782 | 3,426 | ||
| D | 1,457 | 1,131 | 2,608 | ||
| D | 2,121 | 147 | 3,380 | ||
| R | 69 | 1,258 | 1,327 | ||
| O | 229 | 137 | 1,094 | ||
| D | 440 | 189 | 962 | ||
| R | 539 | 610 | 1,149 | ||
| O | 15 | 14 | 996 | ||
| D | 766 | 25 | 791 | ||
| D | 801 | 7 | 808 | ||
| D | 884 | 9 | 894 | ||
| D | 753 | 24 | 782 | ||
| D | 830 | 63 | 893 | ||
| D | 497 | 50 | 547 | ||
| D | 430 | 14 | 445 | ||
| D | 456 | 3 | 460 | ||
| D | 408 | 2 | 431 | ||
| — | — | — | — | ||
| — | — | — | — | ||
| D | 491 | 18 | 510 | ||
| D | 627 | 55 | 686 | ||
| D | 413 | 20 | 444 | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — |
Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
Irish
3.2%
Scottish
1.7%
German
1.1%
English
1.1%
American
1.1%
African American
66.3%
Multiple ancestry combinations reported; no single grouping above 1%.
Sample size too small to break out by ancestry reliably.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
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.
2024 ACS
Age distribution by sex
Median age: 43.1 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$38,305
Jefferson County ranks in the bottom 5% of US counties.
Jefferson County$38,305
Mississippi$56,447
United States$80,734
Jefferson County ranks in the bottom 5% of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
32.5%
Nearly half of children live in poverty.
Children under 1860.8%
Working age (18–64)24.5%
Seniors (65+)26.1%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
98.7%
speak English only
Spanish1.2%
Other Indo-European0.1%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 63.0% of residents not counted as adherents by any reporting body.
Jefferson County's electorate is roughly 85% Black, producing presidential margins that routinely rank among the widest of any county in the United States. Its small, rural population and persistent poverty rate shape a political profile defined more by demography than by urban density.
The Democratic margin here reached ninety-eight points in 1916. Between 2020 and 2024 the county moved five points toward the Republican candidate; the 2024 margin was sixty-six points. The recent movement, modest against a deep Democratic baseline, mirrors a broader rightward drift across the Black Belt.
The economic context is part of the story: a median household income of $38,305 and a 33% poverty rate. The county's voting pattern over the last decade is most similar to that of Greene County and Bullock County.
Most similar counties
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.
Jefferson County, Mississippi. Akashic. https://akashic.app/county/28063/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More in Mississippi
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Frequently asked questions
How did Jefferson County, Mississippi vote in 2024?
In 2024, Jefferson County, Mississippi voted Democratic by 66.3 points (D+66), carried by the Democratic candidate. Out of 3,299 votes cast, 2,727 went Democratic and 541 went Republican.
What is Jefferson County, Mississippi's political typology?
Akashic places Jefferson County, Mississippi in the "Black Belt" typology — Black-majority counties of the rural South — long the most Democratic ground in the region, now trending Republican at the margins. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 28 times, Republican 2 times, and other 2 times.
When did Jefferson County, Mississippi last vote Republican?
The most recent presidential election in which Jefferson County, Mississippi voted Republican was 1964.
How many people live in Jefferson County, Mississippi?
Jefferson County, Mississippi has a population of 7,068 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Jefferson County, Mississippi?
Median household income in Jefferson County, Mississippi is $38,305 — below the national median of $80,734. The Mississippi state median is $56,447.
What is the political history of Jefferson County, Mississippi?
Akashic tracks 38 presidential elections in Jefferson County, Mississippi from 1876 to 2024. Of those, 28 went Democratic and 2 went Republican. The county's typology — "Black Belt" — captures where that record, its demographics, and its recent swing place it among American communities.