Monmouth CDP, California Demographics & Population 2026

Population Overview

Monmouth CDP is a small community located in California. The total population is 168. It ranks as the 1413th most populous out of 1,577 cities and towns in California.

Age Demographics

The median age in Monmouth CDP is 24.3 years. This is 35% lower than the state median of 37.6 years. With 45.8% of the population under 18, Monmouth CDP has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Monmouth CDP is $40,673. This is 58% lower than the state median of $96,334. Compared to the national median of $78,538, household income here is 48% lower. The poverty rate stands at 29.8%. This is 149% higher than the state poverty rate of 12.0%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 6.7%. This is 4% higher than the state rate of 6.4%. The median home value is $113,500. Housing costs are 84% lower than the state median of $695,400. With a home-value-to-income ratio of just 2.8x, Monmouth CDP is one of the most affordable housing markets in the area. 54.0% of occupied housing units are owner-occupied. This homeownership rate is 3% lower than the state average of 55.8%.

Race & Ethnicity

The largest racial or ethnic group in Monmouth CDP is Hispanic or Latino, making up 68.5% of the population. Black or African American residents account for 22.6%. The White (non-Hispanic) population (6.6%) is well below the state average of 34.6%. The Black or African American population is significantly higher than the state average (22.6% vs 5.3%). The Hispanic or Latino population is significantly higher than the state average (68.5% vs 39.8%). The Asian population (2.4%) is well below the state average of 15.0%.

Education

10.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 72% 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 69.2%.

Data Sources & Methodology

All demographic data for Monmouth 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.