Marshall County, Indiana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 32nd-largest in Indiana
The population of Marshall County, Indiana is 46,225 as of the 2023 American Community Survey, making it the 32nd-largest county in Indiana. The median household income is $68,041, the median home value is $184,500, and the median age is 39.6.
The population of Marshall County has declined 1.1% since 2010 (47,000 → 46,464), a -0.08% annualized rate.
46,225
Population
-0.08%
Annual growth
104
People / sq mi
$68,041
Median Income
$184,500
Median Home Value
Marshall County covers 444 sq mi of land at 104.2 people per square mile.
About Marshall County, IN
Marshall County is a county in Indiana with a population of 46,225. It ranks #32 among counties in Indiana by population. The median age is 39.6, in line with the national median. The population is 50.6% male and 49.4% female.
The median household income in Marshall County is $68,041, below the US median of $74,580. 6.9% of residents live below the federal poverty level. Home values sit at a median of $184,500, with monthly rent averaging $936. The homeownership rate of 76.5% is higher than the national rate of 64.8%.
Educational attainment in Marshall County reflects 20.4% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 5.2% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 22.8 minutes each way.
Marshall County Population History (2010-2024)
The county of Marshall County had a population of 47,000 in 2010 and 46,464 in 2024, a -1.1% growth over 14 years. The peak was 47,000 in 2010. Average annual growth rate: -0.08%.
46,464
Population (2024)
47,000
Population (2010)
47,000
Peak (2010)
-0.08%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 47,000 |
| 2011 | 46,944 |
| 2012 | 46,950 |
| 2013 | 46,921 |
| 2014 | 46,935 |
| 2015 | 46,746 |
| 2016 | 46,629 |
| 2017 | 46,434 |
| 2018 | 46,311 |
| 2019 | 46,197 |
| 2020 | 46,073 |
| 2021 | 46,168 |
| 2022 | 46,394 |
| 2023 | 46,323 |
| 2024 | 46,464 |
Race & Ethnicity
| White | 90.1% |
| Black or African American | 0.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.1% |
| Two or More Races | 0.0% |
Age & Sex
39.6
Median Age
49.4%
Female
50.6%
Male
18.2%
Age 65+
Age Distribution
Children (under 15): 19.9% · Seniors (65+): 18.2%
Income & Poverty
| Median household income | $68,041$-2,010 vs state |
| Mean household income | $85,610 |
| Per-capita income | $33,134 |
| Poverty rate | 6.9%-1.5% vs state |
| Unemployment rate | 1.8% |
| Employment-to-population | 60.5% |
Top Industries by Employment
The largest employment sector in Marshall County is manufacturing, accounting for 31.5% of workers.
How residents commute
0.1%
Drive alone
3.0%
Carpool
78.8%
Public transit
5.2%
Work from home
22.8 min
Avg commute
Housing
$184,500$-17,100 vs state
Median home value
$936
Median rent
76.5%
Homeownership rate
19,959
Total housing units
87.1%
Occupied
12.9%
Vacant
23.5%
Renter-occupied
Social & access
87.0%
With health insurance
89.2%
With broadband internet
17.6%
Foreign-born
6.4%
Veterans (18+)
12.1%
With a disability
86.0%
Speak language other than English at home
Education
86.1%
High School+
20.4%
Bachelor's+
Largest cities in Indiana
Other counties in Indiana
Part of Indiana
Metro areas in Indiana
County rankings
Frequently Asked Questions
Marshall County, Indiana has a population of 46,225 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 32nd-largest county in Indiana. Population density is 104 people per square mile.
The population of Marshall County has declined 1.1% since 2010 (47,000 → 46,464), a -0.08% annualized rate.
The median household income in Marshall County, Indiana is $68,041, with mean (average) household income of $85,610 and per-capita income of $33,134. 6.9% of residents live below the federal poverty level.
In Marshall County, the largest racial and ethnic groups are White (90.1%), Hispanic or Latino (1.1%), Black or African American (0.5%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Marshall County, Indiana is 39.6 years. Residents are 49.4% female and 50.6% male.
The median home value in Marshall County is $184,500 and median monthly rent is $936. 76.5% of occupied housing units are owner-occupied. The county has 19,959 total housing units, 12.9% of which are vacant.
The largest employment sector in Marshall County, Indiana is manufacturing, employing 31.5% of workers. The unemployment rate is 1.8%.
Indianapolis is among the largest cities associated with Marshall County, Indiana, with a population of 882,043.
More from Indiana
Population 971,822
Population 498,990
Population 388,791
Population 357,176
Full rankings of Indiana counties
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.