Knox County, Ohio Cities (2024)

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

City
Rank
2024 Pop.
2020 Pop.
Change
Density (/mi²)
Area (mi²)
Type
Mount Vernon116,41816,948-0.8%1,6879.7City
Apple Valley25,2445,5380.27%8726.0CDP
Fredericktown32,6092,648-0.38%1,3152.0Village
Gambier42,3662,2201.54%2,5250.9Village
Centerburg51,6631,693-0.48%1,7201.0Village
South Mount Vernon69957787.68%1,9700.5CDP
Danville79881,018-0.8%1,6720.6Village
Howard85001773.95%2,2320.2CDP
Bladensburg92753532.23%8330.3CDP
Martinsburg10219225-0.91%1,2370.2Village

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Knox County, Ohio?

Mount Vernon is the largest city in Knox County.

What is the smallest city in Knox County, Ohio?

Martinsburg is the smallest city in Knox County.

How many cities are in Knox County?

There are 10 cities in Knox County, Ohio.

Frequently Asked Questions