Cassia County, Idaho Cities (2026)

City
Rank
2026 Pop. ↓
2020 Pop.
Annual Change
Density (/mi²)
Area (mi²)
Type
Burley112,54811,7571.12%1,8567 City
Oakley28477801.44%1835 City
Declo33793411.88%1,3680 City
Albion42712491.5%5750 City
Malta51831661.1%1331 City

Cassia County Cities Summary

Largest City

Burley is the largest city in Cassia County, with a population of 12,548.

Smallest City

Malta is the smallest city in Cassia County, with a population of 183.

10 Largest Cities

There are 5 cities in Cassia County, Idaho.

Location of Cassia County