Cities in Twin Falls County, Idaho by Population (2024)

There are 10 cities in Twin Falls County, Idaho.

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)
Twin Falls1Idaho55,89652,0831.74%2,85319.59
Kimberly2Idaho5,5954,6514.4%2,7522.03
Buhl3Idaho4,7644,5671.04%2,5351.88
Filer4Idaho3,0152,7592.17%2,0521.47
Hansen5Idaho1,1191,0890.63%3,2060.35
Hagerman6Idaho9949700.61%1,6900.59
Hollister7Idaho2712452.26%2531.07
Bliss8Idaho2672590.76%3620.74
Castleford9Idaho2292171.33%2,3850.10
Murtaugh10Idaho1221160.83%5420.23

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 Twin Falls County, Idaho?

Twin Falls is the largest city in Twin Falls County.

What is the smallest city in Twin Falls County, Idaho?

Murtaugh is the smallest city in Twin Falls County.

How many cities are in Twin Falls County?

There are 10 cities in Twin Falls County, Idaho.

Frequently Asked Questions