Cohasset, California Demographics & Population 2026

A note before these figures: with a population of 573, Cohasset'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

Cohasset is a small community located in California, within Butte County. The total population is 573. It ranks as the 1187th most populous out of 1,570 Census-designated places in California.

Age Demographics

The median age in Cohasset is 36.1 years. This is 5% lower than the state median of 37.9 years. With 35.9% of the population under 18, Cohasset has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Cohasset is $79,674. This is 20% lower than the state median of $99,122. It is also 1% lower than the national median of $80,734. The poverty rate stands at 2.3%. This is 81% 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 18.5%. This is 180% higher than the state rate of 6.6%. The median home value is $500,000. Housing costs are 32% lower than the state median of $734,700. The home-value-to-income ratio of 6.3x suggests that housing affordability is a significant concern for many residents. 98.9% of occupied housing units are owner-occupied. This homeownership rate is 77% higher than the state average of 55.9%.

Race & Ethnicity

Cohasset has a predominantly White (non-Hispanic) population, comprising 90.0% of all residents. Hispanic or Latino residents account for 2.8%. The White (non-Hispanic) population is significantly higher than the state average (90.0% vs 33.8%). The Hispanic or Latino population (2.8%) is well below the state average of 40.2%. The Asian population (2.4%) is well below the state average of 15.3%.

Education

72.5% of residents aged 25 and older hold a bachelor's degree or higher. This places Cohasset in the top 10% of all cities in the state for educational attainment. This is 95% higher 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 Cohasset, 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.