Cities in Sully County, South Dakota by Population (2024)

There are 9 cities in Sully County, South Dakota.

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)
Pierre1South Dakota13,82114,057-0.43%1,06113.03
Gettysburg2South Dakota1,0611,103-1.03%5521.92
Onida3South Dakota656664-0.3%9760.67
Blunt4South Dakota337341-0.3%6920.49
Oahe Acres5South Dakota254536-21.61%1921.32
Swift Bird6South Dakota139220-12.58%2830.49
Harrold7South Dakota99102-1%2400.41
Agar8South Dakota72671.41%3510.20
Cow Creek9South Dakota5890-12.12%321.84

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 Sully County, South Dakota?

Pierre is the largest city in Sully County.

What is the smallest city in Sully County, South Dakota?

Cow Creek is the smallest city in Sully County.

How many cities are in Sully County?

There are 9 cities in Sully County, South Dakota.

Frequently Asked Questions