Statistic Onyx California National
Population 576 39,512,223 328,239,523
Population density (sq mi) 50 256 91
Median age 57.3 36.0 37.7
Male/Female ratio 1.3:1 1.0:1 1.0:1
Married (15yrs & older) 32% 52% 55%
Families w/ Kids under 18 18% 46% 43%
Speak English 100% 56% 79%
Speak Spanish 0% 29% 13%
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Demographics Quick Facts

  • The population density in Onyx is 80% lower than California
  • The median age in Onyx is 59% higher than California
  • In Onyx 97.92% of the population is White
  • In Onyx 0.00% of the population is Black
  • In Onyx 0.00% of the population is Asian

Compare Onyx, CA Demographics

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      Onyx racial demographics

      Race Onyx California National
      White 97.92% 61.26% 73.35%
      Black 0.00% 5.85% 12.63%
      Asian 0.00% 13.85% 5.22%
      American Indian 0.00% 0.74% 0.82%
      Native Hawaiian 0.00% 0.39% 0.18%
      Mixed race 2.08% 4.62% 3.06%
      Other race 0.00% 13.28% 4.75%
      In Onyx, 0.0% 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

      Onyx age breakdown

      Marital status

      Age of children in married couples

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