StatisticWalnut CreekCaliforniaNational
Population density (sq mi)3,42025691
Median age48.636.037.7
Male/Female ratio0.9:11.0:11.0:1
Married (15yrs & older)61%52%55%
Families w/ Kids under 1836%46%43%
Speak English75%56%79%
Speak Spanish5%29%13%

Key findings

  • The population density in Walnut Creek is 1236% higher than California
  • The median age in Walnut Creek is 35% higher than California
  • In Walnut Creek 79.32% of the population is White
  • In Walnut Creek 1.14% of the population is Black
  • In Walnut Creek 13.79% of the population is Asian

Compare Walnut Creek, CA Demographics


      Walnut Creek population breakdown by race

      RaceWalnut CreekCaliforniaNational
      American Indian0.22%0.74%0.82%
      Native Hawaiian0.22%0.39%0.18%
      Mixed race3.93%4.62%3.06%
      Other race1.37%13.28%4.75%
      In Walnut Creek, 8.4% of people are of Hispanic or Latino origin.
      Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

      Household income distribution

      Place of birth by citizenship

      Walnut Creek age breakdown

      Marital status

      Age of children in married couples

      Source: The Walnut Creek, CA demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).