Jefferson County, Indiana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 50th-largest in Indiana
The population of Jefferson County, Indiana is 33,074 as of the 2023 American Community Survey, making it the 50th-largest county in Indiana. The median household income is $59,987, the median home value is $180,600, and the median age is 41.6.
The population of Jefferson County has grown 1.6% since 2010 (32,399 → 32,921), a +0.11% annualized rate.
33,074
Population
+0.11%
Annual growth
92
People / sq mi
$59,987
Median Income
$180,600
Median Home Value
Jefferson County covers 361 sq mi of land at 91.7 people per square mile.
About Jefferson County, IN
Jefferson County is a county in Indiana with a population of 33,074. It ranks #50 among counties in Indiana by population. The median age is 41.6, older than the national median. The population is 48.1% male and 51.9% female.
The median household income in Jefferson County is $59,987, below the US median of $74,580. 9.3% of residents live below the federal poverty level. Home values sit at a median of $180,600, with monthly rent averaging $865. The homeownership rate of 69.4% is higher than the national rate of 64.8%.
Educational attainment in Jefferson County reflects 18.1% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 4.9% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 21.9 minutes each way.
Jefferson County Population History (2010-2024)
The county of Jefferson County had a population of 32,399 in 2010 and 32,921 in 2024, a 1.6% growth over 14 years. The peak was 33,124 in 2021. Average annual growth rate: 0.12%.
32,921
Population (2024)
32,399
Population (2010)
33,124
Peak (2021)
0.12%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 32,399 |
| 2011 | 32,273 |
| 2012 | 32,442 |
| 2013 | 32,399 |
| 2014 | 32,412 |
| 2015 | 32,305 |
| 2016 | 32,259 |
| 2017 | 32,031 |
| 2018 | 32,169 |
| 2019 | 32,265 |
| 2020 | 33,103 |
| 2021 | 33,124 |
| 2022 | 32,902 |
| 2023 | 32,938 |
| 2024 | 32,921 |
Race & Ethnicity
| White | 93.1% |
| Black or African American | 1.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.9% |
| Two or More Races | 0.0% |
Age & Sex
41.6
Median Age
51.9%
Female
48.1%
Male
18.8%
Age 65+
Age Distribution
Children (under 15): 16.4% · Seniors (65+): 18.8%
Income & Poverty
| Median household income | $59,987$-10,064 vs state |
| Mean household income | $79,892 |
| Per-capita income | $32,420 |
| Poverty rate | 9.3%+0.9% vs state |
| Unemployment rate | 2.3% |
| Employment-to-population | 54.7% |
Top Industries by Employment
The largest employment sector in Jefferson County is manufacturing, accounting for 24.4% of workers.
How residents commute
0.0%
Drive alone
2.5%
Carpool
84.4%
Public transit
4.9%
Work from home
21.9 min
Avg commute
Housing
$180,600$-21,000 vs state
Median home value
$865
Median rent
69.4%
Homeownership rate
14,446
Total housing units
87.9%
Occupied
12.1%
Vacant
30.6%
Renter-occupied
Social & access
91.2%
With health insurance
89.0%
With broadband internet
30.8%
Foreign-born
6.0%
Veterans (18+)
19.8%
With a disability
96.4%
Speak language other than English at home
Education
88.6%
High School+
18.1%
Bachelor's+
Largest cities in Indiana
Other counties in Indiana
Part of Indiana
Metro areas in Indiana
County rankings
Frequently Asked Questions
Jefferson County, Indiana has a population of 33,074 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 50th-largest county in Indiana. Population density is 92 people per square mile.
The population of Jefferson County has grown 1.6% since 2010 (32,399 → 32,921), a +0.11% annualized rate.
The median household income in Jefferson County, Indiana is $59,987, with mean (average) household income of $79,892 and per-capita income of $32,420. 9.3% of residents live below the federal poverty level.
In Jefferson County, the largest racial and ethnic groups are White (93.1%), Hispanic or Latino (1.9%), Black or African American (1.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Jefferson County, Indiana is 41.6 years. Residents are 51.9% female and 48.1% male.
The median home value in Jefferson County is $180,600 and median monthly rent is $865. 69.4% of occupied housing units are owner-occupied. The county has 14,446 total housing units, 12.1% of which are vacant.
The largest employment sector in Jefferson County, Indiana is manufacturing, employing 24.4% of workers. The unemployment rate is 2.3%.
Indianapolis is among the largest cities associated with Jefferson County, Indiana, with a population of 882,043.
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Statewide data for Indiana
Population, race, income, age, and trends across Indiana
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.