Arnold, California Demographics & Population 2026

Population Overview

Arnold is a small community located in California, within Calaveras County. The total population is 2,482. It ranks as the 851st most populous out of 1,570 Census-designated places in California.

Age Demographics

The median age in Arnold is 64.4 years. This is 70% higher than the state median of 37.9 years. Only 9.8% of residents are under 18, indicating fewer families with children. 12.8% 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 Arnold is $92,467. This is 7% lower than the state median of $99,122. It is also 15% higher than the national median of $80,734. The poverty rate stands at 4.2%. This is 65% lower than the state poverty rate of 12.0%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 5.4%. This is 19% lower than the state rate of 6.6%. The median home value is $485,700. Housing costs are 34% lower than the state median of $734,700. The home-value-to-income ratio is 5.3x. 84.3% of occupied housing units are owner-occupied. This homeownership rate is 51% higher than the state average of 55.9%.

Race & Ethnicity

The largest racial or ethnic group in Arnold is White (non-Hispanic), making up 85.0% of the population. Hispanic or Latino residents account for 7.3%. The White (non-Hispanic) population is significantly higher than the state average (85.0% vs 33.8%). The Hispanic or Latino population (7.3%) is well below the state average of 40.2%. The Asian population (1.5%) is well below the state average of 15.3%.

Education

43.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 18% higher than the state rate of 37.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 95.5%. Notably, 20.3% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Arnold, California is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against California state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,570 Census-designated places in California. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.