Santa Rosa Demographics

According to the 2010 United States Census, the population of Santa Rosa was 167,815 residents. The population was split into 63,590 households and 39,231 families. At the time, there was a population density of 4,043.8 people per square mile.


Of the households, 44% had opposite-sex married couples, 7.9% had unmarried opposite-sex partnerships, and 1.2% had same-sex married couples or partnerships. 32.4% of households had children under the age of 18 years old, 28.3% had individuals residing alone, and 11.8% had an individual 65 years of age or older living alone. 12.1% of the household population had a single female head-of-house and 5.7% had a single male head-of-house. The average household size was 2.6 and the average family size was 3.2.


The age range of Santa Rosa in 2010 was broken up as follows: 23.4% of people were under the age of 18, 9.5% of people were between 18 and 24, 27.8% of people were between 25 and 44, 25.8% of people were between 45 and 64, and 13.5% of people were 65 years of age or older. The median age was 36.7 years old.


The racial makeup of Santa Rosa was as follows: 71% white residents, 28.6% Hispanic or Latino residents, 5.2% Asian residents, 2.4% black residents, 1.7% Native American residents, and .5% Pacific Islander residents. 14.1% of Santa Rosa residents identified as an “other” race and 5.1% identified as two or more races.