Sierra Brooks, California Demographics & Population 2026

A note before these figures: with a population of 397, Sierra Brooks'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

Sierra Brooks is a small community located in California, within Sierra County. The total population is 397. It ranks as the 1268th most populous out of 1,570 Census-designated places in California.

Age Demographics

The median age in Sierra Brooks is 66.5 years. This is 75% higher than the state median of 37.9 years. 45.3% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The poverty rate stands at 17.1%. This is 43% higher than the state poverty rate of 12.0%. The unemployment rate is 53.8%. This is 713% higher than the state rate of 6.6%. The median home value is $333,100. Housing costs are 55% lower than the state median of $734,700. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 79% higher than the state average of 55.9%.

Race & Ethnicity

Every resident counted in Sierra Brooks was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.

Education

21.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 41% lower than the state rate of 37.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample.

Data Sources & Methodology

All demographic data for Sierra Brooks, 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.