Westminster Flag

Westminster

County:
Adams County
County Seat:
No
Area (mi²):
31.618
State:
Colorado

Westminster is a city located in Adams County, Colorado. Westminster has a 2026 population of 115,302. Westminster is currently declining at a rate of -0.03% annually and its population has decreased by -1.16% since the most recent census, which recorded a population of 116,653 in 2020.

115.3K
Total Population
3,647
Density (mi²)
-32 -0.03%
Growth

Nearby Cities

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)