2021: Sonoma County residents have median age of 43

2021: Sonoma County residents have median age of 43
USCB Chief Financial Officer James T. Christy — United States Census Bureau
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Sonoma County residents have a median age of 43-years-old as of 2021, according to US Census Data.

Median ages divide a population into two equally sized groups, rather than the average which takes all the ages of Sonoma 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 Sonoma County
Ethnicity Median Age – Male Median Age – Female
American Indian and Alaska Native 34 36
Asian 41 44
Black or African American 42 36
Hispanic or Latino 30 29
White 48 51
Native Hawaiian and Other Pacific Islander 45 40
Some other race 30 29
Multiracial 28 28


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