There are 9 cities in Mercer County, Ohio.

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Celina1Ohio10,81510,930-0.3%2,1714.98
Coldwater2Ohio4,6694,770-0.38%2,4051.94
St. Henry3Ohio2,6222,6030.15%1,6021.64
Fort Recovery4Ohio1,4681,498-0.34%1,2541.17
Rockford5Ohio1,0221,044-0.49%1,2480.82
Mendon6Ohio613631-0.49%1,1050.56
Chickasaw7Ohio350357-0.57%1,4960.23
Burkettsville8Ohio262270-0.76%1,4970.17
Montezuma9Ohio149151 1,2840.12
showing: 9 rows

Cities in Mercer County, Ohio by Population (2024)

What is the largest city in Mercer County, Ohio?

Celina is the largest city in Mercer County.

What is the smallest city in Mercer County, Ohio?

Montezuma is the smallest city in Mercer County.

How many cities are in Mercer County?

There are 9 cities in Mercer County, Ohio.

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