Johnson County, Wyoming Cities (2026)

City
Rank
2026 Pop.
2020 Pop.
Annual Change
Density (/mi²)
Area (mi²)
Type
Buffalo14,7944,4421.29%1,0565 City
Kaycee22932482.81%6670 Town

Johnson County Cities Summary

Largest City

Buffalo is the largest city in Johnson County, with a population of 4,794.

Smallest City

Kaycee is the smallest city in Johnson County, with a population of 293.

10 Largest Cities

There are 2 cities in Johnson County, Wyoming.

Location of Johnson County