McArthur, California Demographics & Population 2026

A note before these figures: with a population of 346, McArthur's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

McArthur is a small community located in California, within Shasta County. The total population is 346. It ranks as the 1290th most populous out of 1,570 Census-designated places in California.

Age Demographics

The median age in McArthur is 57.2 years. This is 51% higher than the state median of 37.9 years.

Economy, Income & Housing

The median household income in McArthur is $36,554. This is 63% lower than the state median of $99,122. It is also 55% lower than the national median of $80,734. The poverty rate stands at 41.0%. This is 242% 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 10.3%. This is 56% higher than the state rate of 6.6%. The median home value is $241,300. Housing costs are 67% lower than the state median of $734,700. The home-value-to-income ratio of 6.6x suggests that housing affordability is a significant concern for many residents. 55.6% of occupied housing units are owner-occupied.

Race & Ethnicity

The largest racial or ethnic group in McArthur is White (non-Hispanic), making up 60.1% of the population. Hispanic or Latino residents account for 11.0%. The White (non-Hispanic) population is significantly higher than the state average (60.1% vs 33.8%). The Hispanic or Latino population (11.0%) is well below the state average of 40.2%.

Education

35.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 4% lower 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 96.4%.

Data Sources & Methodology

All demographic data for McArthur, 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.