Waterloo CDP, California Demographics & Population 2026

Population Overview

Waterloo CDP is a small community located in California. The total population is 886. It ranks as the 1089th most populous out of 1,577 cities and towns in California.

Age Demographics

The median age in Waterloo CDP is 53.7 years. This is 43% higher than the state median of 37.6 years. Only 12.9% of residents are under 18, indicating fewer families with children. 11.1% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Waterloo CDP is $250,001. This is 160% higher than the state median of $96,334. Compared to the national median of $78,538, household income here is 218% higher. The poverty rate stands at 5.6%. This is 53% lower than the state poverty rate of 12.0%. The unemployment rate is 0.0%. This is 100% lower than the state rate of 6.4%. The median home value is $883,200. Housing costs are 27% higher than the state median of $695,400. The home-value-to-income ratio is 3.5x. 38.6% of occupied housing units are owner-occupied. This homeownership rate is 31% lower than the state average of 55.8%.

Race & Ethnicity

Waterloo CDP has a predominantly White (non-Hispanic) population, comprising 86.6% of all residents. Hispanic or Latino residents account for 10.4%. The White (non-Hispanic) population is significantly higher than the state average (86.6% vs 34.6%). The Hispanic or Latino population (10.4%) is well below the state average of 39.8%. The Asian population (1.1%) is well below the state average of 15.0%.

Education

27.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 25% 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 94.2%.

Data Sources & Methodology

All demographic data for Waterloo 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.