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Ottawa County, OH
11 cities and towns and 15 ZIP codes in Ottawa County, Ohio.
Population
39,994
Land area
255sq mi
People per sq mi
157
ZIP codes
15
Cities and towns in Ottawa County
Ottawa County at a glance
- Ottawa County is 46% less dense than Ohio as a whole.
- The median household income is $76,101, 7% above the Ohio median of $71,389.
- A typical owner-occupied home is valued at $219,900 and median rent is $930 a month.
- Its largest cities are Port Clinton (5,970), Oak Harbor (2,314) and Genoa (1,872).
Local data for Ottawa County, OH
Counts from official public data
Housing and community stats
Ottawa County, OH, American Community Survey 2020-2024
Median household income
$76,101
Poverty rate
8.4%
Median home value
$219,900
Prices +8.3% in a year
Median rent
$930/mo
Homeownership
83.6%
Bachelor's or higher
29.5%
Median age
50.6
Average commute
24.8 min
Largest reported origins and ancestries: German Americans (15,415), Irish Americans (5,215), Polish Americans (1,915).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
3.7%
Sep 2026, -0.6 pts in a year
Average annual pay
$55,434
14,252 jobs, 2025
Income per person
$68,759
BEA, 2024
Federal spending
$358M
FY 2026, $8,863 per person
PPP loans
$86.8M
1,381 loans, 11,519 jobs reported
Campaign donations
$274K
Itemized, 2026 cycle
How people get to work
Ottawa County, OH, workers 16 and older. American Community Survey 5-year estimates
- Drove alone81.1%
- Carpooled6.5%
- Public transit0.4%
- Walked1.7%
- Bicycle0.3%
- Taxi, ride-hailing, motorcycle or other2.2%
- Worked from home7.8%
Average one-way commute: 24.8 minutes for people who do not work from home.
Environment and hazard risk
Ottawa County, OH, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: strong wind
Storm events since 1996
450
Most often thunderstorm wind
Flood insurance policies
608
2.1% of homes, county
July high / Jan low
85° / 20°F
32.4 inches of rain a year
Hazards, floods and storm historyCheck a flood zone21 historic places
Health statistics
Share of adults in Ottawa County, OH, CDC PLACES estimates
Obesity
38.0%
U.S. 33.3% +4.7 pts
Diabetes
13.8%
U.S. 12.1% +1.7 pts
Smoking
14.0%
U.S. 12.8% +1.2 pts
Uninsured (18-64)
7.0%
U.S. 11.1% -4.1 pts
Cities, towns and ZIP codes in Ottawa County
Population shown
Frequently asked questions
- What is the largest city in Ottawa County, OH?
- Port Clinton is the largest city or town in Ottawa County, with about 5,970 residents.
- How many ZIP codes are in Ottawa County?
- Ottawa County includes 15 ZIP Code Tabulation Areas, including 43408, 43416, 43430, 43432, 43433.
- What is the population of Ottawa County, OH?
- About 39,994 people live in Ottawa County, based on American Community Survey 5-year estimates.
- What counties border Ottawa County?
- Ottawa County borders Lucas County, Wood County, Sandusky County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023