Newcastle Flag

Newcastle

County:
Weston County
County Seat:
Yes
Area (mi²):
2.561
State:
Wyoming

Newcastle is a city located in Weston County, Wyoming. Newcastle has a 2026 population of 3,354. It is also the county seat of Weston County. Newcastle is currently growing at a rate of 0.45% annually but its population has decreased by -0.09% since the most recent census, which recorded a population of 3,357 in 2020.

3.4K
Total Population
1,310
Density (mi²)
15 0.45%
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)