Summit County, Ohio Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 4th-largest in Ohio
The population of Summit County, Ohio is 538,087 as of the 2023 American Community Survey, making it the 4th-largest county in Ohio. The median household income is $71,016, the median home value is $195,700, and the median age is 41.2.
The population of Summit County has declined 0.6% since 2010 (541,659 → 538,370), a -0.04% annualized rate.
538,087
Population
-0.04%
Annual growth
1304
People / sq mi
$71,016
Median Income
$195,700
Median Home Value
Summit County covers 413 sq mi of land at 1303.5 people per square mile.
About Summit County, OH
What distinguishes Summit County is density: among the most densely settled of US counties, around 1,304 people per square mile. Summit County is a county in Ohio with a population of 538,087. It is the #4-largest of all counties in Ohio nationally.
Household earnings are middling, with a median of $71,016 — below the US median of $78,538. Poverty runs at 9.0%, below the national 12.4%. Median home value is $195,700, with typical rent around $998.
Educational attainment is on the higher side for US counties — 35.3% of adults hold a four-year degree, near the national 35.0%. Remote work is on the higher side at 13.0%, below the national 14.0%, and the average commute runs about 23 minutes each way.
That density explains much of the rest of the profile in Summit County: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Summit County Population History (2010-2024)
The county of Summit County had a population of 541,659 in 2010 and 538,370 in 2024, a -0.6% growth over 14 years. The peak was 542,572 in 2014. Average annual growth rate: -0.04%.
538,370
Population (2024)
541,659
Population (2010)
542,572
Peak (2014)
-0.04%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 541,659 |
| 2011 | 541,368 |
| 2012 | 540,806 |
| 2013 | 542,032 |
| 2014 | 542,572 |
| 2015 | 541,940 |
| 2016 | 541,226 |
| 2017 | 541,695 |
| 2018 | 541,451 |
| 2019 | 540,814 |
| 2020 | 539,835 |
| 2021 | 537,516 |
| 2022 | 536,582 |
| 2023 | 537,019 |
| 2024 | 538,370 |
Race & Ethnicity
| White | 75.0% |
| Black or African American | 14.0% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.1% |
| Two or More Races | 0.0% |
Age & Sex
41.2
Median Age
51.3%
Female
48.7%
Male
18.9%
Age 65+
Age Distribution
Children (under 15): 17.1% · Seniors (65+): 18.9%
Income & Poverty
| Median household income | $71,016+$1,336 vs state |
| Mean household income | $98,907 |
| Per-capita income | $42,749 |
| Poverty rate | 9.0%-0.2% vs state |
| Unemployment rate | 3.4% |
| Employment-to-population | 61.4% |
Top Industries by Employment
The largest employment sector in Summit County is professional & business services, accounting for 23.9% of workers.
How residents commute
0.9%
Drive alone
1.1%
Carpool
76.7%
Public transit
13.0%
Work from home
23.2 min
Avg commute
Housing
$195,700$-3,500 vs state
Median home value
$998
Median rent
67.3%
Homeownership rate
247,239
Total housing units
92.8%
Occupied
7.2%
Vacant
32.7%
Renter-occupied
Social & access
94.4%
With health insurance
94.7%
With broadband internet
17.1%
Foreign-born
6.3%
Veterans (18+)
13.6%
With a disability
93.1%
Speak language other than English at home
Education
92.9%
High School+
35.3%
Bachelor's+
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County rankings
Common questions about Summit County, OH
Frequently Asked Questions
Summit County, Ohio has a population of 538,087 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 4th-largest county in Ohio. Population density is 1304 people per square mile.
The population of Summit County has declined 0.6% since 2010 (541,659 → 538,370), a -0.04% annualized rate.
The median household income in Summit County, Ohio is $71,016, with mean (average) household income of $98,907 and per-capita income of $42,749. 9.0% of residents live below the federal poverty level.
In Summit County, the largest racial and ethnic groups are White (75.0%), Black or African American (14.0%), Hispanic or Latino (1.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Summit County, Ohio is 41.2 years. Residents are 51.3% female and 48.7% male.
The median home value in Summit County is $195,700 and median monthly rent is $998. 67.3% of occupied housing units are owner-occupied. The county has 247,239 total housing units, 7.2% of which are vacant.
The largest employment sector in Summit County, Ohio is professional, scientific, and management services, employing 23.9% of workers. The unemployment rate is 3.4%.
Columbus is among the largest cities associated with Summit County, Ohio, with a population of 906,480.
Summit County, OH Climate
Summit County, OH has an average annual temperature of 10.1°C (50°F) and receives about 959 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
10.1°C
Avg Temp
959
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -4° / 26° | 57 mm |
| February | -2° / 28° | 55 mm |
| March | 3° / 38° | 78 mm |
| April | 9° / 49° | 82 mm |
| May | 15° / 60° | 93 mm |
| June | 20° / 68° | 92 mm |
| July | 23° / 73° | 98 mm |
| August | 22° / 71° | 90 mm |
| September | 18° / 64° | 90 mm |
| October | 11° / 53° | 66 mm |
| November | 6° / 42° | 81 mm |
| December | 0° / 31° | 77 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 Summit County, OH
The most comfortable months to visit Summit County, 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 -8°C low). July is usually the wettest month.
Where to stay near Summit County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.