There are 10 cities in Allen County, Ohio.

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Lima1Ohio34,30335,526-0.97%2,53413.54
Delphos2Ohio7,1427,1110.38%2,0433.50
Bluffton3Ohio3,8573,962-0.75%1,0583.65
Spencerville4Ohio2,1262,199-0.98%2,2030.96
Elida5Ohio1,8641,926-0.9%1,6951.10
Cairo6Ohio494512-1%1,7830.28
Harrod7Ohio417427-1.19%1,7820.23
Lafayette8Ohio392402-1.01%1,6820.23
Beaverdam9Ohio307320-1.29%4870.63
Lafayette10Ohio133188 1271.05
showing: 10 rows

Cities in Allen County, Ohio by Population (2024)

What is the largest city in Allen County, Ohio?

Lima is the largest city in Allen County.

What is the smallest city in Allen County, Ohio?

Lafayette is the smallest city in Allen County.

How many cities are in Allen County?

There are 10 cities in Allen County, Ohio.

Frequently Asked Questions