Monroe County, Indiana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 12th-largest in Indiana
The population of Monroe County, Indiana is 139,822 as of the 2023 American Community Survey, making it the 12th-largest county in Indiana. The median household income is $63,372, the median home value is $261,700, and the median age is 31.4.
The population of Monroe County has grown 1.5% since 2010 (138,574 → 140,702), a +0.11% annualized rate.
139,822
Population
+0.11%
Annual growth
354
People / sq mi
$63,372
Median Income
$261,700
Median Home Value
Monroe County covers 395 sq mi of land at 354.4 people per square mile.
About Monroe County, IN
Monroe County is a county in Indiana with a population of 139,822. It ranks #12 among counties in Indiana by population. The median age is 31.4, younger than the national median. The population is 49.9% male and 50.1% female.
The median household income in Monroe County is $63,372, below the US median of $74,580. 8.8% of residents live below the federal poverty level. Home values sit at a median of $261,700, with monthly rent averaging $1,151. The homeownership rate of 54.8% is lower than the national rate of 64.8%.
Educational attainment in Monroe County reflects 49.1% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 14.4% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 19.8 minutes each way.
Monroe County Population History (2010-2024)
The county of Monroe County had a population of 138,574 in 2010 and 140,702 in 2024, a 1.5% growth over 14 years. The peak was 148,178 in 2019. Average annual growth rate: 0.12%.
140,702
Population (2024)
138,574
Population (2010)
148,178
Peak (2019)
0.12%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 138,574 |
| 2011 | 140,280 |
| 2012 | 141,570 |
| 2013 | 142,185 |
| 2014 | 143,554 |
| 2015 | 144,432 |
| 2016 | 145,936 |
| 2017 | 146,840 |
| 2018 | 147,411 |
| 2019 | 148,178 |
| 2020 | 140,645 |
| 2021 | 141,243 |
| 2022 | 141,181 |
| 2023 | 141,052 |
| 2024 | 140,702 |
Race & Ethnicity
| White | 83.4% |
| Black or African American | 3.6% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.0% |
| Two or More Races | 0.0% |
Age & Sex
31.4
Median Age
50.1%
Female
49.9%
Male
14.2%
Age 65+
Age Distribution
Children (under 15): 13.2% · Seniors (65+): 14.2%
Income & Poverty
| Median household income | $63,372$-6,679 vs state |
| Mean household income | $87,694 |
| Per-capita income | $36,836 |
| Poverty rate | 8.8%+0.4% vs state |
| Unemployment rate | 3.4% |
| Employment-to-population | 58.5% |
Top Industries by Employment
The largest employment sector in Monroe County is professional & business services, accounting for 35.6% of workers.
How residents commute
2.1%
Drive alone
6.3%
Carpool
65.8%
Public transit
14.4%
Work from home
19.8 min
Avg commute
Housing
$261,700+$60,100 vs state
Median home value
$1,151
Median rent
54.8%
Homeownership rate
64,850
Total housing units
89.8%
Occupied
10.2%
Vacant
45.2%
Renter-occupied
Social & access
94.7%
With health insurance
96.1%
With broadband internet
32.4%
Foreign-born
5.1%
Veterans (18+)
11.8%
With a disability
89.0%
Speak language other than English at home
Education
94.8%
High School+
49.1%
Bachelor's+
Largest cities in Indiana
Other counties in Indiana
Part of Indiana
Metro areas in Indiana
County rankings
Frequently Asked Questions
Monroe County, Indiana has a population of 139,822 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 12th-largest county in Indiana. Population density is 354 people per square mile.
The population of Monroe County has grown 1.5% since 2010 (138,574 → 140,702), a +0.11% annualized rate.
The median household income in Monroe County, Indiana is $63,372, with mean (average) household income of $87,694 and per-capita income of $36,836. 8.8% of residents live below the federal poverty level.
In Monroe County, the largest racial and ethnic groups are White (83.4%), Black or African American (3.6%), Hispanic or Latino (1.0%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Monroe County, Indiana is 31.4 years. Residents are 50.1% female and 49.9% male.
The median home value in Monroe County is $261,700 and median monthly rent is $1,151. 54.8% of occupied housing units are owner-occupied. The county has 64,850 total housing units, 10.2% of which are vacant.
The largest employment sector in Monroe County, Indiana is professional, scientific, and management services, employing 35.6% of workers. The unemployment rate is 3.4%.
Indianapolis is among the largest cities associated with Monroe County, Indiana, with a population of 882,043.
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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.