Marion, Ohio Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Marion, Ohio is 35,771 as of the 2023 American Community Survey, making it the 38th-largest city in Ohio. The median household income is $45,829, the median home value is $105,900, and the median age is 38.0.
The population has declined 3.3% since 2010 (36,793 → 35,576).
35,771
Population
2759
People / sq mi
$45,829
Median Income
$105,900
Median Home Value
Get Marion's next ACS population data
Subscribe for Population Review updates by email. No spam, unsubscribe anytime.
Marion covers 13.0 sq mi of land at 2759 people per square mile.
About Marion, OH
Marion is defined demographically by education — 10.1% of adults hold a bachelor’s degree, below the national average. Marion is a city in Ohio with a population of 35,771. It ranks #38 among cities in Ohio by population.
Money is tight relative to the rest of US cities: the median household earns just $45,829, below the US median of $78,538. Roughly 15.9% of residents fall below the poverty line, above the national 12.4%. Housing costs are among the lowest of comparable places: a median home value of $105,900, with typical rent around $848.
Four-year-degree attainment is near the bottom of the range for US cities, 10.1%, below the national 35.0%. Remote work is rare here (4.6%, below the national 14.0%), and the average commute runs about 20 minutes each way.
Marion city Population History (2010-2024)
The city of Marion city had a population of 36,793 in 2010 and 35,576 in 2024, a -3.3% growth over 14 years. The peak was 36,946 in 2011. Average annual growth rate: -0.24%.
35,576
Population (2024)
36,793
Population (2010)
36,946
Peak (2011)
-0.24%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 36,793 |
| 2011 | 36,946 |
| 2012 | 36,889 |
| 2013 | 36,728 |
| 2014 | 36,622 |
| 2015 | 36,352 |
| 2016 | 36,439 |
| 2017 | 36,065 |
| 2018 | 36,191 |
| 2019 | 35,883 |
| 2020 | 36,053 |
| 2021 | 35,977 |
| 2022 | 35,344 |
| 2023 | 35,565 |
| 2024 | 35,576 |
Race & Ethnicity
| White | 81.0% |
| Black or African American | 9.3% |
| Asian | 0.1% |
| Hispanic or Latino (any race) | 2.0% |
| Two or More Races | 0.0% |
Economy & Income
$45,829
Median Household Income
$21,602
Per Capita Income
15.9%
Poverty Rate
4.5%
Unemployment Rate
Housing
$105,900
Median Home Value
$848
Median Rent
56.3%
Owner-Occupied
Education
86.8%
High School+
10.1%
Bachelor's+
Commute
0.9%
Drive Alone
79.9%
Public Transit
4.6%
Work From Home
20.2 min
Avg Commute
Community Profile
15.6%
Foreign Born
96.1%
Non-English at Home
8.0%
Veterans
19.9%
With Disability
93.3%
Health Insurance
91.8%
Internet Access
Employment by Industry
| Manufacturing | 25.1% |
| Professional, Scientific & Management | 21.7% |
| Education, Health Care & Social Services | 11.2% |
| Finance, Insurance & Real Estate | 6.2% |
| Construction | 5.7% |
| Retail Trade | 4.9% |
| Arts, Entertainment & Food Services | 3.8% |
| Information | 3.6% |
| Public Administration | 2.9% |
| Transportation & Warehousing | 2.2% |
| Agriculture & Mining | 0.2% |
Largest cities in Ohio
Largest counties in Ohio
Part of Ohio
Metro areas in Ohio
City rankings
Frequently Asked Questions
Marion, Ohio has a population of 35,771 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 38th-largest city in Ohio.
The median household income in Marion, Ohio is $45,829, with 15.9% of residents living below the federal poverty level.
The median home value in Marion, Ohio is $105,900, with median monthly rent at $848 and a homeownership rate of 56.3%.
The median age in Marion, Ohio is 38.0 years. The population is 56.5% male and 43.5% female.
The population has declined 3.3% since 2010 (36,793 → 35,576).
Marion city, OH Climate
Marion city, OH has an average annual temperature of 9.9°C (50°F) and receives about 942 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
9.9°C
Avg Temp
942
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -4° / 24° | 53 mm |
| February | -3° / 27° | 46 mm |
| March | 3° / 38° | 70 mm |
| April | 9° / 48° | 89 mm |
| May | 15° / 59° | 104 mm |
| June | 20° / 68° | 98 mm |
| July | 23° / 73° | 104 mm |
| August | 22° / 71° | 88 mm |
| September | 18° / 64° | 80 mm |
| October | 12° / 53° | 62 mm |
| November | 5° / 42° | 77 mm |
| December | 0° / 31° | 71 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 Marion city, OH
The most comfortable months to visit Marion city, OH are typically August, June and July, 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). May is usually the wettest month.
Where to stay near Marion
Visiting or relocating to Marion, OH? Compare hotels and short-term rentals across the metro — live availability and prices.
Top-rated places to stay near Marion
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a move to Marion?
Get relocation and cost-of-living insights for Marion, OH by email. No spam, unsubscribe anytime.
More from Ohio
Population 906,480
Population 367,523
Population 309,595
Population 268,461
Population 189,526
Full rankings of Ohio cities by population
Statewide data for Ohio
Population, race, income, age, and trends across Ohio
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.