Cosby, Missouri Demographics & Population 2026

A note before these figures: with a population of 130, Cosby'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

Cosby is a small community located in Missouri, within Andrew County. The total population is 130. It ranks as the 820th most populous out of 1,062 Census-designated places in Missouri.

Age Demographics

The median age in Cosby is 27.7 years. This is 29% lower than the state median of 39.0 years. With 36.1% of the population under 18, Cosby has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Cosby is $57,917. This is 18% lower than the state median of $70,702. It is also 28% lower than the national median of $80,734. The poverty rate stands at 3.1%. This is 76% lower than the state poverty rate of 12.6%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 11.4%. This is 184% higher than the state rate of 4.0%. The median home value is $106,300. Housing costs are 54% lower than the state median of $230,300. With a home-value-to-income ratio of just 1.8x, Cosby is one of the most affordable housing markets in the area. 76.1% of occupied housing units are owner-occupied. This homeownership rate is 12% higher than the state average of 68.1%.

Race & Ethnicity

Cosby has a predominantly White (non-Hispanic) population, comprising 95.4% of all residents. Black or African American residents account for 4.6%. The Black or African American population (4.6%) is well below the state average of 10.9%.

Education

12.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 61% lower than the state rate of 32.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 98.6%.

Data Sources & Methodology

All demographic data for Cosby, Missouri 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 Missouri state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,062 Census-designated places in Missouri. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.