Johnstown Flag

Johnstown

County:
Weld County
County Seat:
No
Area (mi²):
15.437
State:
Colorado

Johnstown is a town located in Weld County, Colorado. Johnstown has a 2025 population of 21,457 . Johnstown is currently growing at a rate of 3.96% annually and its population has increased by 23.55% since the most recent census, which recorded a population of 17,367 in 2020.

The average household income in Johnstown is $134,531 with a poverty rate of 2.21%. The median age in Johnstown is 34 years: 33.9 years for males, and 34 years for females. For every 100 females there are 117.2 males.

21.5K
Total Population
1,390
Density (mi²)
818 3.96%
Growth

Johnstown Population

Demographics

Economics and Income Statistics

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)