Miami County, OH demographics:
population, income, and more

Total population
110,296
0.7% year-over-year change
Median household income
$76,817/yr
3.6% year-over-year change
Housing units
47,226
0.4% year-over-year change

Miami County population

How many people live in Miami County

Miami County is home to 110,296 residents, according to the most recent Census data. Gender-wise, 49.8% of Miami County locals are male, and 50.2% are female.

Total population
110,296
0.7% year-over-year change
Gender ratio
Male
49.8%
54,870
Female
50.2%
55,426
Value Percent YoY change
Male 54,870 49.8% 0.7%
Female 55,426 50.2% 0.7%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Miami County is 41, with the population distributed as follows: about 18.7% are children under 15, then 11.6% are in the 15 to 24 age group. Adults between 25 and 44 make up 24.3% of the population, while another 26% fall into the 45 to 64 bracket. Finally, around 19.4% are 65 or older.

Median age
41.3
Age breakdown
Under 15
18.7%
15 to 24
11.6%
25 to 44
24.3%
45 to 64
26%
Over 65
19.4%
Value Percent YoY change
Under 15 20,660 18.7% -0.2%
15 to 24 12,760 11.6% 0.5%
25 to 44 26,828 24.3% 0.9%
45 to 64 28,666 26% 0.3%
Over 65 21,382 19.4% 1.9%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Miami County, 96.6% of the population are US-born citizens, while 2.2% have gained naturalized citizenship. At the same time, 1.2% of residents are non-citizens. As for race, 90.4% of locals are Caucasian, 2% are African American and 1.9% have Asian roots. There’s also a share of 5.1% that includes residents with two or more races.

Citizenship
U.S.-born citizens
96.6%
Non-U.S.-born citizens
2.2%
Non-citizens
1.2%
Value Percent YoY change
U.S.-born citizens 106,507 96.6% 0.6%
Non-U.S.-born citizens 2,476 2.2% 0.9%
Non-citizens 1,313 1.2% 4.9%
Racial breakdown
White
90.4%
Black or African American
2%
American Indian and Alaska Native
0.1%
Asian
1.9%
Native Hawaiian and other Pacific Islander
0%
Two or more races
5.1%
Other
0.7%
Value Percent
White 99,677 90.4%
Black or African American 2,167 2%
American Indian and Alaska Native 70 0.1%
Asian 2,062 1.9%
Two or more races 5,576 5.1%
Other 744 0.7%

Households in Miami County

A peek inside Miami County households

Miami County has 44,906 households, with an average of 2 members in each. Of these, 66.2% are families, while the remaining 33.8% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
44,906
0.8% year-over-year change
Average people per household
2
Non-family households
15,184
Family households
29,722
Value Percent YoY change
Non-family households 15,184 33.8% 0.9%
Family households 29,722 66.2% 0.7%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Miami County

The housing landscape of Miami County

Miami County's housing consists of 47,226 units, with 79.4% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 4.4% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 1.1% of the housing landscape.

Housing units
47,226
0.4% year-over-year change
Housing types
Value Percent
1 unit, detached 37,516 79.4%
1 unit, attached 2,065 4.4%
2 units 1,555 3.3%
3 or 4 units 1,981 4.2%
5 to 9 units 1,635 3.5%
10 to 19 units 891 1.9%
20 to 49 units 426 0.9%
50 or more units 627 1.3%
Mobile home 504 1.1%
Boat, RV, van, etc. 26 0.1%
Homes built since 2020
743
70.8% year-over-year change

The age of buildings in Miami County

In Miami County, the median construction year is 1971. About 21.5% of homes were built before the 1940s, with another 5.7% going up by 1949. Most development happened in the second half of the 20th century. Then, 8.7% of homes were added from 2000 to 2009, 7.6% between 2010 and 2019, and 1.6% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 10,155 21.5% -4.0%
Built between 1940 and 1949 2,703 5.7% -2.8%
Built between 1950 and 1959 4,248 9% 3.5%
Built between 1960 and 1969 5,605 11.9% -2.6%
Built between 1970 and 1979 7,403 15.7% 3.4%
Built between 1980 and 1989 3,285 7% 7.2%
Built between 1990 and 1999 5,362 11.4% -3.4%
Built between 2000 and 2009 4,125 8.7% 2.6%
Built between 2010 and 2019 3,597 7.6% 0.6%
Built in 2020 or later 743 1.6% 70.8%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Miami County occupancy rates

Out of the 44,906 occupied housing units in Miami County, 73.4% are owner-occupied, while 26.6% are lived in by tenants. Meanwhile, 4.9% of all homes on the local market sit vacant.

Occupied housing units
44,906
0.8% year-over-year change
Occupancy breakdown
Renter occupied
11,930
Owner occupied
32,976
Value Percent YoY
change
Renter occupied 11,930 26.6% 0.7%
Owner occupied 32,976 73.4% 0.8%
Unoccupied housing units
4.9%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Miami County housing costs

Housing costs in Miami County come to a median of $1,024 per month, while tenants specifically pay a median gross rent of $966.

Median housing costs per month
$1,024/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Miami County
$966/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Miami County

Miami County education at a glance

About 43.7% of the population in Miami County went to high school, while 19.2% pursued college studies. Another 10.3% earned an associate degree and 15.7% hold a bachelor’s. Meanwhile, 9.8% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 1,152 1.4% -0.5%
High school diploma 37,167 43.7% -0.9%
College diploma 16,299 19.2% -5.2%
Associate degree 8,761 10.3% 2.1%
Bachelor's degree 13,385 15.7% 10.2%
Graduate degree 8,289 9.8% 7.5%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Miami County

How much people earn in Miami County

The average annual household income in Miami County was $96,707 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +2.6% change from the previous year. At the same time, the median income stood at $76,817, reflecting a +3.6% shift over the same period.

Average household income in Miami County
$96,707/year
2.5% year-over-year change
Median household income in Miami County
$76,817/year
3.6% year-over-year change

Miami County income by age

In Miami County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $90,640. Those with someone between 45 and 64 in charge, often well established professionally, earn $91,814 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $58,498, while those led by someone over 65, many of whom may be retired, have about $55,659 in earnings. Overall, 90.6% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $58,498 5.4%
25 - 44 $90,640 2.2%
45 - 64 $91,814 4.0%
Over 65 $55,659 4.9%
Above poverty level
97,722
Below poverty level
10,080
Value Percent YoY
change
Above poverty level 97,722 90.6% -0.3%
Below poverty level 10,080 9.4% 9.4%

Employment in Miami County

Workforce and job types in Miami County

The job market in Miami County is powered by 54,560 working residents, spread across a range of industries and roles. 72% of the working population are employed in professional or administrative positions, while 28% are in hands-on or service-based jobs. Also, 8.5% run their own businesses, 69.8% are employed by private companies, and 13.1% work in the public sector.

Workforce demographics

Working population
54,560
1.2% year-over-year change
White collar
39,294
Blue collar
15,266
Value Percent YoY change
White collar 39,294 72% 3.0%
Blue collar 15,266 28% -3.4%
Employer type
Self employees
8.5%
Private companies
69.8%
Governmental workers
13.1%
Not for profit companies
8.6%
Value Percent YoY change
Self employees 4,658 8.5% 0.8%
Private companies 38,059 69.8% -0.8%
Governmental workers 7,159 13.1% 5.9%
Not for profit companies 4,684 8.6% 12.6%
Unemployment rate
3.1%
-13.0% year-over-year change

Available workforce

The unemployment rate in Miami County stands at 3.1%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Miami County

How people get around in Miami County

In Miami County, the average commute time is 22 minutes. Commuting methods vary: 86.5% of residents travel by personal vehicle and 1.6% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
22 min
Means of transportation
Value Percent YoY change
Car 46,693 86.5% -0.8%
Taxicab 67 0.1% -8.2%
Bus or trolleybus 92 0.2% -21.4%
Motorcycle 58 0.1% -18.3%
Bicycle 223 0.4% 23.2%
Walk 845 1.6% 12.5%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Miami County by zipcode?

Zipcode Population Number of households Median income Average income
45308 4,385 1,666 $70,435 $87,262
45312 1,086 484 $91,842 $123,196
45317 1,187 490 $61,429 $96,319
45318 5,511 2,215 $73,867 $84,161
45322 20,884 8,988 $75,349 $103,474
45326 1,446 531 $93,472 $110,577
45337 1,703 593 $108,162 $129,345
45339 1,057 449 $97,750 $111,096
45344 16,979 6,724 $78,471 $92,778
45356 25,237 10,718 $69,188 $76,000

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FAQs about Miami County demographics 

What is the total population of Miami County?

Miami County has a total population of 110,296 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +0.7% compared to a year ago.

What is the gender ratio in Miami County?

The gender ratio in Miami County is as follows:
  • 49.8% males (54,870 residents)
  • 50.2% females (55,426 residents)

What is the median age in Miami County?

The median age in Miami County is 41.3.

What is the age distribution of the population in Miami County?

The age distribution in Miami County is as follows:
  • Under 15: 18.7% (20,660 residents)
  • Ages 15-24: 11.6% (12,760 residents)
  • Ages 25-44: 24.3% (26,828 residents)
  • Ages 45-64: 26% (28,666 residents)
  • Over 65: 19.4% (21,382 residents)

What is the racial and ethnic makeup of Miami County?

The racial and ethnic makeup of Miami County is as follows:
  • White: 90.4% (99,677 residents)
  • Black or African American: 2% (2,167 residents)
  • American Indian and Alaska Native: 0.1% (70 residents)
  • Asian: 1.9% (2,062 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 5.1% (5,576 residents)
  • Other: 0.7% (744 residents)

What percentage of the population in Miami County are U.S.-born citizens?

U.S.-born citizens represent 96.6% of the population in Miami County.

How many housing units are there in Miami County?

There are 47,226 housing units in Miami County, reflecting a +0.4% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Miami County and what is the average household size?

Miami County has a total of 44,906 households, with an average of 2 people in each.

What is the median household income in Miami County?

Miami County has a median household income of $76,817, representing a +3.6% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Miami County?

The employment rate is 96.9% in Miami County, with a workforce of 54,560 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 72% (39,294 residents)
  • Blue-collar workers: 28% (15,266 residents)

Places of employment:
  • Self-employed: 8.5% (4,658 residents)
  • Private companies: 69.8% (38,059 residents)
  • Governmental workers: 13.1% (7,159 residents)
  • Not-for-profit companies: 8.6% (4,684 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025