There are 15 cities in Seneca County, Ohio.

Download Table Data

Enter your email below, and you'll receive this table's data in your inbox momentarily.

City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Tiffin1Ohio17,53117,965-0.66%2,5536.87
Fostoria2Ohio12,99913,039-0.14%1,7247.54
Green Springs3Ohio1,2111,229-0.41%1,0421.16
Attica4Ohio865870-0.35%1,2970.67
Bloomville5Ohio838864-0.83%1,3900.60
Bettsville6Ohio590596-0.17%1,1320.52
Republic7Ohio531553-1.3%6160.86
McCutchenville8Ohio358211 1292.78
Flat Rock9Ohio293261 1,3820.21
Bascom10Ohio287189 1901.51
New Riegel11Ohio278285-0.71%1,3900.20
Kansas12Ohio18452 4190.44
Old Fort13Ohio138218 2390.58
Fort Seneca14Ohio118102 1880.63
Melmore15Ohio8362 1390.59
showing: 15 rows

Cities in Seneca County, Ohio by Population (2024)

What is the largest city in Seneca County, Ohio?

Tiffin is the largest city in Seneca County.

What is the smallest city in Seneca County, Ohio?

Melmore is the smallest city in Seneca County.

How many cities are in Seneca County?

There are 15 cities in Seneca County, Ohio.

Frequently Asked Questions