There are 11 cities in Ottawa County, Ohio.

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Port Clinton1Ohio5,9106,017-0.47%2,7762.13
Oak Harbor2Ohio2,7732,817-0.43%1,7931.55
Genoa3Ohio2,1882,227-0.46%1,4521.51
Curtice4Ohio1,5011,251 4083.68
Elmore5Ohio1,3511,383-0.66%1,7450.77
Marblehead6Ohio832848-0.48%2623.17
Lakeside7Ohio588686 8550.69
Williston8Ohio356419 5830.61
Rocky Ridge9Ohio307310-0.33%3061
Clay Center10Ohio252260-0.79%2441.03
Put-in-Bay11Ohio150151 3470.43
showing: 11 rows

Cities in Ottawa County, Ohio by Population (2024)

What is the largest city in Ottawa County, Ohio?

Port Clinton is the largest city in Ottawa County.

What is the smallest city in Ottawa County, Ohio?

Put-in-Bay is the smallest city in Ottawa County.

How many cities are in Ottawa County?

There are 11 cities in Ottawa County, Ohio.

Frequently Asked Questions