Montgomery County, Indiana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 39th-largest in Indiana
The population of Montgomery County, Indiana is 38,155 as of the 2023 American Community Survey, making it the 39th-largest county in Indiana. The median household income is $66,571, the median home value is $166,300, and the median age is 40.0.
The population of Montgomery County has grown 1.4% since 2010 (38,096 → 38,633), a +0.10% annualized rate.
38,155
Population
+0.10%
Annual growth
76
People / sq mi
$66,571
Median Income
$166,300
Median Home Value
Montgomery County covers 505 sq mi of land at 75.6 people per square mile.
About Montgomery County, IN
Montgomery County is a county in Indiana with a population of 38,155. It ranks #39 among counties in Indiana by population. The median age is 40.0, in line with the national median. The population is 50.9% male and 49.1% female.
The median household income in Montgomery County is $66,571, below the US median of $74,580. 7.6% of residents live below the federal poverty level. Home values sit at a median of $166,300, with monthly rent averaging $827. The homeownership rate of 77.8% is higher than the national rate of 64.8%.
Educational attainment in Montgomery County reflects 19.5% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 7.0% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 22.0 minutes each way.
Montgomery County Population History (2010-2024)
The county of Montgomery County had a population of 38,096 in 2010 and 38,633 in 2024, a 1.4% growth over 14 years. The peak was 38,633 in 2024. Average annual growth rate: 0.10%.
38,633
Population (2024)
38,096
Population (2010)
38,633
Peak (2024)
0.10%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 38,096 |
| 2011 | 38,340 |
| 2012 | 38,180 |
| 2013 | 38,143 |
| 2014 | 38,158 |
| 2015 | 38,255 |
| 2016 | 38,240 |
| 2017 | 38,343 |
| 2018 | 38,251 |
| 2019 | 38,275 |
| 2020 | 37,943 |
| 2021 | 38,069 |
| 2022 | 38,345 |
| 2023 | 38,571 |
| 2024 | 38,633 |
Race & Ethnicity
| White | 90.5% |
| Black or African American | 0.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.2% |
| Two or More Races | 0.1% |
Age & Sex
40.0
Median Age
49.1%
Female
50.9%
Male
18.4%
Age 65+
Age Distribution
Children (under 15): 18.9% · Seniors (65+): 18.4%
Income & Poverty
| Median household income | $66,571$-3,480 vs state |
| Mean household income | $83,964 |
| Per-capita income | $34,462 |
| Poverty rate | 7.6%-0.8% vs state |
| Unemployment rate | 2.4% |
| Employment-to-population | 60.9% |
Top Industries by Employment
The largest employment sector in Montgomery County is manufacturing, accounting for 25.0% of workers.
How residents commute
0.1%
Drive alone
3.5%
Carpool
79.4%
Public transit
7.0%
Work from home
22.0 min
Avg commute
Housing
$166,300$-35,300 vs state
Median home value
$827
Median rent
77.8%
Homeownership rate
16,534
Total housing units
93.9%
Occupied
6.1%
Vacant
22.2%
Renter-occupied
Social & access
91.8%
With health insurance
93.3%
With broadband internet
20.8%
Foreign-born
7.7%
Veterans (18+)
15.8%
With a disability
94.3%
Speak language other than English at home
Education
88.9%
High School+
19.5%
Bachelor's+
Largest cities in Indiana
Other counties in Indiana
Part of Indiana
Metro areas in Indiana
County rankings
Frequently Asked Questions
Montgomery County, Indiana has a population of 38,155 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 39th-largest county in Indiana. Population density is 76 people per square mile.
The population of Montgomery County has grown 1.4% since 2010 (38,096 → 38,633), a +0.10% annualized rate.
The median household income in Montgomery County, Indiana is $66,571, with mean (average) household income of $83,964 and per-capita income of $34,462. 7.6% of residents live below the federal poverty level.
In Montgomery County, the largest racial and ethnic groups are White (90.5%), Hispanic or Latino (1.2%), Black or African American (0.7%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Montgomery County, Indiana is 40.0 years. Residents are 49.1% female and 50.9% male.
The median home value in Montgomery County is $166,300 and median monthly rent is $827. 77.8% of occupied housing units are owner-occupied. The county has 16,534 total housing units, 6.1% of which are vacant.
The largest employment sector in Montgomery County, Indiana is manufacturing, employing 25.0% of workers. The unemployment rate is 2.4%.
Indianapolis is among the largest cities associated with Montgomery 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.