Natrona County, Wyoming Cities (2026)

City
Rank
2026 Pop.
2020 Pop.
Annual Change
Density (/mi²)
Area (mi²)
Type
Casper158,62459,316-0.25%2,19127 City
Mills24,7204,2271.86%9275 Town
Bar Nunn33,0172,9980.17%1,4372 Town
Evansville42,8892,7830.49%7364 Town
Midwest52922870%6020 Town
Edgerton61581540%5300 Town

Natrona County Cities Summary

Largest City

Casper is the largest city in Natrona County, with a population of 58,624.

Smallest City

Edgerton is the smallest city in Natrona County, with a population of 158.

10 Largest Cities

There are 6 cities in Natrona County, Wyoming.

Location of Natrona County