Cities in Delaware County, Ohio by Population (2024)

There are 30 cities in Delaware County, Ohio.

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.)

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Columbus1Ohio909,676906,2660.09%4,121220.72
Dublin2Ohio48,65449,342-0.35%1,97124.68
Delaware3Ohio46,09941,6912.45%2,27820.24
Westerville4Ohio37,69139,241-1.02%2,99112.60
Hilliard5Ohio37,62037,1340.33%2,63614.27
Gahanna6Ohio34,54835,706-0.83%2,77912.43
Marysville7Ohio28,60725,7072.6%1,75816.28
Powell8Ohio14,53414,2460.5%2,4995.82
Worthington9Ohio14,47314,785-0.54%2,6465.47
New Albany10Ohio11,23410,8520.86%54720.52
Sunbury11Ohio9,0916,7216.98%1,8884.81
Johnstown12Ohio5,3675,1890.85%1,7982.98
Huber Ridge13Ohio4,3914,2131.03%4,1941.05
Richwood14Ohio2,5592,2353.27%2,0601.24
Minerva Park15Ohio1,9102,010-1.29%2,9520.65
New California16Ohio1,8911,330-0.47%9192.06
Centerburg17Ohio1,6591,685-0.36%1,7160.97
Ashley18Ohio1,3571,2052.88%2,0590.66
Ostrander19Ohio1,2361,1002.83%1,3180.94
Galena20Ohio1,0489342.85%6061.73
Prospect21Ohio1,0431,069-0.57%1,4410.72
Shawnee Hills22Ohio9478432.82%2,1280.45
Milford Center23Ohio9268103.23%2,1940.42
Hartford (Croton)24Ohio4094010.49%7660.53
Waldo25Ohio317321-0.31%4890.65
Magnetic Springs26Ohio3002603.45%1,4080.21
Marengo27Ohio2802800%1,6670.17
Radnor28Ohio2031319.73%2820.72
Raymond29Ohio1551550%1221.27
Kilbourne30Ohio1714-19.05%380.45
showing: 30 rows

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 Delaware County, Ohio?

Columbus is the largest city in Delaware County.

What is the smallest city in Delaware County, Ohio?

Kilbourne is the smallest city in Delaware County.

How many cities are in Delaware County?

There are 30 cities in Delaware County, Ohio.

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