Franklin County, Idaho Cities (2025)

6 cities

City
Rank
2025 Pop. ↓
2020 Pop.
Change
Density
Area (mi²)
Type
Preston16,4345,6292.57%9426.83 City
Franklin21,1801,0292.61%9061.30 City
Weston35735152.14%3021.90 City
Dayton45475191.11%826.67 City
Clifton54804152.78%2092.30 City
Oxford645392.27%1720.26 City

Franklin County Cities Summary

Largest City

Preston is the largest city in Franklin County, with a population of 6,434.

Smallest City

Oxford is the smallest city in Franklin County.

10 Largest Cities

There are 6 cities in Franklin County, Idaho.