
Johnstown
- County:
- Fremont County
- County Seat:
- No
- Area (mi²):
- 31.552
- State:
- Wyoming
Johnstown is a CDP located in Fremont County, Wyoming. Johnstown has a 2025 population of 228. Johnstown is currently declining at a rate of -0.44% annually but its population has increased by 3.17% since the most recent census, which recorded a population of 221 in 2020.
The average household income in Johnstown is $91,132 with a poverty rate of 19.38%. The median age in Johnstown is 59.1 years: 65.3 years for males, and 48.5 years for females.