Walnut Creek Flag

Walnut Creek

County Seat:
No
Area (mi²):
19.76
State:
California

Walnut Creek is a city located in Contra Costa County, California. Walnut Creek has a 2025 population of 70,966 . Walnut Creek is currently growing at a rate of 0.21% annually and its population has increased by 1.07% since the most recent census, which recorded a population of 70,218 in 2020.

The average household income in Walnut Creek is $179,232 with a poverty rate of 5.95%. The median age in Walnut Creek is 46.1 years: 43.4 years for males, and 49.3 years for females. For every 100 females there are 91.1 males.

71K
Total Population
3,591
Density (mi²)
149 0.21%
Growth

Walnut Creek 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)