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

Total population
65,020
-0.2% year-over-year change
Median household income
$59,371/yr
3.6% year-over-year change
Housing units
27,358
-0.1% year-over-year change

Marion County population

How many people live in Marion County

Marion County is home to 65,020 residents, according to the most recent Census data. Gender-wise, 53.8% of Marion County locals are male, and 46.2% are female.

Total population
65,020
-0.2% year-over-year change
Gender ratio
Male
53.8%
35,006
Female
46.2%
30,014
Value Percent YoY change
Male 35,006 53.8% -0.0%
Female 30,014 46.2% -0.4%
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 Marion County is 40, with the population distributed as follows: about 17.7% are children under 15, then 11.8% are in the 15 to 24 age group. Adults between 25 and 44 make up 26% of the population, while another 25.8% fall into the 45 to 64 bracket. Finally, around 18.7% are 65 or older.

Median age
40.1
Age breakdown
Under 15
17.7%
15 to 24
11.8%
25 to 44
26%
45 to 64
25.8%
Over 65
18.7%
Value Percent YoY change
Under 15 11,531 17.7% -0.2%
15 to 24 7,656 11.8% 0.2%
25 to 44 16,920 26% 1.1%
45 to 64 16,773 25.8% -2.7%
Over 65 12,140 18.7% 1.5%
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 Marion County, 97.7% of the population are US-born citizens, while 1.8% have gained naturalized citizenship. At the same time, 0.5% of residents are non-citizens. As for race, 87% of locals are Caucasian, 4.9% are African American and 0.6% have Asian roots. There’s also a share of 5.8% that includes residents with two or more races.

Citizenship
U.S.-born citizens
97.7%
Non-U.S.-born citizens
1.8%
Non-citizens
0.5%
Value Percent YoY change
U.S.-born citizens 63,508 97.7% -0.2%
Non-U.S.-born citizens 1,177 1.8% 5.7%
Non-citizens 335 0.5% -14.5%
Racial breakdown
White
87%
Black or African American
4.9%
American Indian and Alaska Native
0.2%
Asian
0.6%
Native Hawaiian and other Pacific Islander
0%
Two or more races
5.8%
Other
1.4%
Value Percent
White 56,588 87%
Black or African American 3,195 4.9%
American Indian and Alaska Native 146 0.2%
Asian 395 0.6%
Two or more races 3,771 5.8%
Other 925 1.4%

Households in Marion County

A peek inside Marion County households

Marion County has 24,683 households, with an average of 2 members in each. Of these, 61.1% are families, while the remaining 38.9% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
24,683
0.7% year-over-year change
Average people per household
2
Non-family households
9,607
Family households
15,076
Value Percent YoY change
Non-family households 9,607 38.9% 3.7%
Family households 15,076 61.1% -1.2%
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 Marion County

The housing landscape of Marion County

Marion County's housing consists of 27,358 units, with 75.9% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 1.8% 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 4.6% of the housing landscape.

Housing units
27,358
-0.1% year-over-year change
Housing types
Value Percent
1 unit, detached 20,761 75.9%
1 unit, attached 493 1.8%
2 units 1,440 5.3%
3 or 4 units 900 3.3%
5 to 9 units 883 3.2%
10 to 19 units 715 2.6%
20 to 49 units 168 0.6%
50 or more units 730 2.7%
Mobile home 1,268 4.6%
Homes built since 2020
135
82.4% year-over-year change

The age of buildings in Marion County

In Marion County, the median construction year is 1963. About 28.7% of homes were built before the 1940s, with another 4.8% going up by 1949. Most development happened in the second half of the 20th century. Then, 7.1% of homes were added from 2000 to 2009, 3.3% between 2010 and 2019, and 0.5% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 7,848 28.7% -3.0%
Built between 1940 and 1949 1,324 4.8% 2.2%
Built between 1950 and 1959 3,528 12.9% 9.2%
Built between 1960 and 1969 3,147 11.5% -1.1%
Built between 1970 and 1979 4,359 15.9% -0.0%
Built between 1980 and 1989 1,731 6.3% -7.1%
Built between 1990 and 1999 2,431 8.9% 2.9%
Built between 2000 and 2009 1,950 7.1% -8.2%
Built between 2010 and 2019 905 3.3% 14.0%
Built in 2020 or later 135 0.5% 82.4%
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.

Marion County occupancy rates

Out of the 24,683 occupied housing units in Marion County, 67.5% are owner-occupied, while 32.5% are lived in by tenants. Meanwhile, 9.8% of all homes on the local market sit vacant.

Occupied housing units
24,683
0.7% year-over-year change
Occupancy breakdown
Renter occupied
8,032
Owner occupied
16,651
Value Percent YoY
change
Renter occupied 8,032 32.5% 1.8%
Owner occupied 16,651 67.5% 0.1%
Unoccupied housing units
9.8%
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.

Marion County housing costs

Housing costs in Marion County come to a median of $890 per month, while tenants specifically pay a median gross rent of $864.

Median housing costs per month
$890/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 Marion County
$864/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 Marion County

Marion County education at a glance

About 51.7% of the population in Marion County went to high school, while 22.3% pursued college studies. Another 9.5% earned an associate degree and 9.1% hold a bachelor’s. Meanwhile, 4.6% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 1,431 2.8% 6.7%
High school diploma 26,442 51.7% -3.6%
College diploma 11,416 22.3% 0.2%
Associate degree 4,846 9.5% 7.1%
Bachelor's degree 4,667 9.1% 1.5%
Graduate degree 2,354 4.6% 18.4%
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 Marion County

How much people earn in Marion County

The average annual household income in Marion County was $76,923 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -1.8% change from the previous year. At the same time, the median income stood at $59,371, reflecting a +3.6% shift over the same period.

Average household income in Marion County
$76,923/year
-1.8% year-over-year change
Median household income in Marion County
$59,371/year
3.6% year-over-year change

Marion County income by age

In Marion County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $72,392. Those with someone between 45 and 64 in charge, often well established professionally, earn $74,051 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $37,115, while those led by someone over 65, many of whom may be retired, have about $39,995 in earnings. Overall, 83.4% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $37,115 -12.7%
25 - 44 $72,392 5.0%
45 - 64 $74,051 3.3%
Over 65 $39,995 -5.1%
Above poverty level
49,056
Below poverty level
9,780
Value Percent YoY
change
Above poverty level 49,056 83.4% -1.8%
Below poverty level 9,780 16.6% 8.7%

Employment in Marion County

Workforce and job types in Marion County

The job market in Marion County is powered by 26,310 working residents, spread across a range of industries and roles. 67.2% of the working population are employed in professional or administrative positions, while 32.8% are in hands-on or service-based jobs. Also, 8.9% run their own businesses, 69.2% are employed by private companies, and 12.1% work in the public sector.

Workforce demographics

Working population
26,310
-1.3% year-over-year change
White collar
17,677
Blue collar
8,633
Value Percent YoY change
White collar 17,677 67.2% -0.7%
Blue collar 8,633 32.8% -2.4%
Employer type
Self employees
8.9%
Private companies
69.2%
Governmental workers
12.1%
Not for profit companies
9.8%
Value Percent YoY change
Self employees 2,340 8.9% -2.7%
Private companies 18,215 69.2% -2.6%
Governmental workers 3,179 12.1% 2.7%
Not for profit companies 2,576 9.8% 5.5%
Unemployment rate
6.3%
5.3% year-over-year change

Available workforce

The unemployment rate in Marion County stands at 6.3%, 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 Marion County

How people get around in Marion County

In Marion County, the average commute time is 24 minutes. Commuting methods vary: 90.9% of residents travel by personal vehicle and 0.9% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
24 min
2.5% year-over-year change
Means of transportation
Value Percent YoY change
Car 23,540 90.9% -1.7%
Taxicab 42 0.2% 44.8%
Bus or trolleybus 186 0.7% 25.7%
Motorcycle 15 0.1% -28.6%
Bicycle 48 0.2% N/A
Walk 242 0.9% -2.0%
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 Marion County by zipcode?

Zipcode Population Number of households Median income Average income
43302 53,702 20,164 $55,057 $72,777
43314 2,438 933 $49,183 $64,534
43322 437 143 $56,250 $71,873
43332 2,173 835 $81,382 $80,499
43337 625 308 $70,833 $79,912
43341 953 442 $54,836 $98,454
43342 3,836 1,496 $84,803 $113,892
43356 1,120 510 $92,870 $113,321

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FAQs about Marion County demographics 

What is the total population of Marion County?

Marion County has a total population of 65,020 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 -0.2% compared to a year ago.

What is the gender ratio in Marion County?

The gender ratio in Marion County is as follows:
  • 53.8% males (35,006 residents)
  • 46.2% females (30,014 residents)

What is the median age in Marion County?

The median age in Marion County is 40.1.

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

The age distribution in Marion County is as follows:
  • Under 15: 17.7% (11,531 residents)
  • Ages 15-24: 11.8% (7,656 residents)
  • Ages 25-44: 26% (16,920 residents)
  • Ages 45-64: 25.8% (16,773 residents)
  • Over 65: 18.7% (12,140 residents)

What is the racial and ethnic makeup of Marion County?

The racial and ethnic makeup of Marion County is as follows:
  • White: 87% (56,588 residents)
  • Black or African American: 4.9% (3,195 residents)
  • American Indian and Alaska Native: 0.2% (146 residents)
  • Asian: 0.6% (395 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 5.8% (3,771 residents)
  • Other: 1.4% (925 residents)

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

U.S.-born citizens represent 97.7% of the population in Marion County.

How many housing units are there in Marion County?

There are 27,358 housing units in Marion County, reflecting a -0.1% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Marion County has a total of 24,683 households, with an average of 2 people in each.

What is the median household income in Marion County?

Marion County has a median household income of $59,371, 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 Marion County?

The employment rate is 93.7% in Marion County, with a workforce of 26,310 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 67.2% (17,677 residents)
  • Blue-collar workers: 32.8% (8,633 residents)

Places of employment:
  • Self-employed: 8.9% (2,340 residents)
  • Private companies: 69.2% (18,215 residents)
  • Governmental workers: 12.1% (3,179 residents)
  • Not-for-profit companies: 9.8% (2,576 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