Franklin County, Idaho Cities (2024)

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.)

City
Rank
2024 Pop.
2020 Pop.
Change
Density (/mi²)
Area (mi²)
Type
Preston16,2735,6292.63%9196.8City
Franklin21,1501,0292.68%8831.3City
Weston35615152%2951.9City
Dayton45415190.93%816.7City
Clifton54674152.86%2032.3City
Oxford644392.33%1690.3City

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 Franklin County, Idaho?

Preston is the largest city in Franklin County.

What is the smallest city in Franklin County, Idaho?

Oxford is the smallest city in Franklin County.

How many cities are in Franklin County?

There are 6 cities in Franklin County, Idaho.

Frequently Asked Questions