Miami County, Indiana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 45th-largest in Indiana
The population of Miami County, Indiana is 35,772 as of the 2023 American Community Survey, making it the 45th-largest county in Indiana. The median household income is $61,130, the median home value is $118,000, and the median age is 41.0.
The population of Miami County has declined 3.3% since 2010 (36,810 → 35,613), a -0.24% annualized rate.
35,772
Population
-0.24%
Annual growth
96
People / sq mi
$61,130
Median Income
$118,000
Median Home Value
Miami County covers 374 sq mi of land at 95.7 people per square mile.
About Miami County, IN
Remote work is unusually rare in Miami County: 4.5% of workers primarily work from home, below the 14.0% national rate. With 35,772 residents, Miami County is a county in Indiana. It ranks #45 among counties in Indiana by population.
The typical household here earns about $61,130, below the US median of $78,538. Poverty runs at 11.3%, below the national 12.4%. Property is affordable here, the median home worth $118,000, with typical rent around $794.
Degree attainment is on the lower side for US counties: 16.1% of adults hold a bachelor’s degree, below the national 35.0%. Just 4.5% of workers are home-based, below the national 14.0%, and the average commute runs about 25 minutes each way.
Miami County Population History (2010-2024)
The county of Miami County had a population of 36,810 in 2010 and 35,613 in 2024, a -3.3% growth over 14 years. The peak was 36,810 in 2010. Average annual growth rate: -0.23%.
35,613
Population (2024)
36,810
Population (2010)
36,810
Peak (2010)
-0.23%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 36,810 |
| 2011 | 36,658 |
| 2012 | 36,547 |
| 2013 | 36,191 |
| 2014 | 36,088 |
| 2015 | 36,023 |
| 2016 | 36,047 |
| 2017 | 35,903 |
| 2018 | 35,652 |
| 2019 | 35,488 |
| 2020 | 35,906 |
| 2021 | 36,003 |
| 2022 | 35,562 |
| 2023 | 35,477 |
| 2024 | 35,613 |
Race & Ethnicity
| White | 88.9% |
| Black or African American | 3.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.6% |
| Two or More Races | 0.2% |
Age & Sex
41.0
Median Age
45.8%
Female
54.2%
Male
17.9%
Age 65+
Age Distribution
Children (under 15): 16.8% · Seniors (65+): 17.9%
Income & Poverty
| Median household income | $61,130$-8,921 vs state |
| Mean household income | $74,702 |
| Per-capita income | $29,185 |
| Poverty rate | 11.3%+2.9% vs state |
| Unemployment rate | 3.6% |
| Employment-to-population | 51.9% |
Top Industries by Employment
The largest employment sector in Miami County is manufacturing, accounting for 23.9% of workers.
How residents commute
0.4%
Drive alone
2.0%
Carpool
83.1%
Public transit
4.5%
Work from home
25.1 min
Avg commute
Housing
$118,000$-83,600 vs state
Median home value
$794
Median rent
75.0%
Homeownership rate
14,927
Total housing units
88.9%
Occupied
11.1%
Vacant
25.0%
Renter-occupied
Social & access
92.5%
With health insurance
92.8%
With broadband internet
18.0%
Foreign-born
8.7%
Veterans (18+)
16.8%
With a disability
96.4%
Speak language other than English at home
Education
87.5%
High School+
16.1%
Bachelor's+
Largest cities in Indiana
Other counties in Indiana
Part of Indiana
Metro areas in Indiana
County rankings
Frequently Asked Questions
Miami County, Indiana has a population of 35,772 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 45th-largest county in Indiana. Population density is 96 people per square mile.
The population of Miami County has declined 3.3% since 2010 (36,810 → 35,613), a -0.24% annualized rate.
The median household income in Miami County, Indiana is $61,130, with mean (average) household income of $74,702 and per-capita income of $29,185. 11.3% of residents live below the federal poverty level.
In Miami County, the largest racial and ethnic groups are White (88.9%), Black or African American (3.7%), Hispanic or Latino (1.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Miami County, Indiana is 41.0 years. Residents are 45.8% female and 54.2% male.
The median home value in Miami County is $118,000 and median monthly rent is $794. 75.0% of occupied housing units are owner-occupied. The county has 14,927 total housing units, 11.1% of which are vacant.
The largest employment sector in Miami County, Indiana is manufacturing, employing 23.9% of workers. The unemployment rate is 3.6%.
Indianapolis is among the largest cities associated with Miami County, Indiana, with a population of 882,043.
Miami County, IN Climate
Miami County, IN has an average annual temperature of 10°C (50°F) and receives about 953 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
10°C
Avg Temp
953
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -5° / 23° | 53 mm |
| February | -2° / 28° | 47 mm |
| March | 3° / 38° | 71 mm |
| April | 10° / 49° | 98 mm |
| May | 16° / 60° | 100 mm |
| June | 21° / 70° | 94 mm |
| July | 23° / 73° | 105 mm |
| August | 22° / 71° | 91 mm |
| September | 18° / 64° | 79 mm |
| October | 12° / 53° | 65 mm |
| November | 5° / 41° | 77 mm |
| December | -1° / 29° | 73 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Miami County, IN
The most comfortable months to visit Miami County, IN are typically June, August and September, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 29°C high). The coldest is January (near -9°C low). July is usually the wettest month.
Where to stay near Miami County
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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.