Median ages divide a population into two equally sized groups, rather than the average which takes all the ages of Contra Costa County residents and divides it by the number of residents.
OurWorldinData.org, an online project tracking global data and trends, says cities, states, countries and continents with higher median ages typically do better economically and residents earn higher wages than developing countries.
The median age of a United States resident has risen from 29.5-years-old in 1960 to 38.4-years-old in 2019. It has risen fairly consistently by two years every decade since the 1970’s.
Median ages of men and women by Ethnicity in Contra Costa County
| Ethnicity | Median Age - Male | Median Age - Female |
|---|---|---|
| American Indian and Alaska Native | 37 | 44 |
| Asian | 40 | 43 |
| Black or African American | 36 | 41 |
| Hispanic or Latino | 30 | 31 |
| White | 45 | 48 |
| Native Hawaiian and Other Pacific Islander | 34 | 42 |
| Some other race | 30 | 30 |
| Multiracial | 23 | 24 |
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Brentwood• Camino Tassajara• San Pablo• Alhambra Valley• Castle Hill• Vine Hill• Knightsen• Tara Hills• Rodeo• Bethel Island• Richmond• Rollingwood• Blackhawk• East Richmond Heights• Moraga• Acalanes Ridge• Pacheco• Clyde• Danville• Saranap• Bay Point• Concord• North Gate• Discovery Bay• Port Costa• Crockett• Oakley• Alamo• Pleasant Hill• Shell Ridge• Orinda• Pinole• Clayton• San Ramon• Byron• Reliez Valley• Hercules• Kensington• Lafayette• Martinez• Diablo• Contra Costa Centre• City of Walnut Creek• Pittsburg• Antioch• Norris Canyon• Montalvin Manor• North Richmond
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