Alum Rock CDP, California Demographics & Population 2026

Population Overview

Alum Rock CDP is a small city located in California. The total population is 11,619. It ranks as the 457th most populous out of 1,577 cities and towns in California.

Age Demographics

The median age in Alum Rock CDP is 40.3 years. This is 7% higher than the state median of 37.6 years.

Economy, Income & Housing

The median household income in Alum Rock CDP is $111,976. This is 16% higher than the state median of $96,334. Compared to the national median of $78,538, household income here is 43% higher. The poverty rate stands at 8.7%. This is 28% lower than the state poverty rate of 12.0%. The unemployment rate is 4.7%. This is 26% lower than the state rate of 6.4%. The median home value is $880,000. Housing costs are 27% higher than the state median of $695,400. The home-value-to-income ratio of 7.9x suggests that housing affordability is a significant concern for many residents. 70.4% of occupied housing units are owner-occupied. This homeownership rate is 26% higher than the state average of 55.8%.

Race & Ethnicity

The largest racial or ethnic group in Alum Rock CDP is Hispanic or Latino, making up 67.9% of the population. Asian residents account for 20.6%. The White (non-Hispanic) population (10.2%) is well below the state average of 34.6%. The Black or African American population (0.3%) is well below the state average of 5.3%. The Hispanic or Latino population is significantly higher than the state average (67.9% vs 39.8%).

Education

19.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 46% lower than the state rate of 36.5%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 66.8%.

Data Sources & Methodology

All demographic data for Alum Rock CDP, California is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against California state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,577 Census-designated places in California. For official data, visit data.census.gov.