Farmington, Washington Demographics & Population 2026

A note before these figures: with a population of 140, Farmington'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

Farmington is a small community located in Washington, within Whitman County. The total population is 140. It ranks as the 580th most populous out of 628 Census-designated places in Washington.

Age Demographics

The median age in Farmington is 63.1 years. This is 65% higher than the state median of 38.3 years. Only 14.3% of residents are under 18, indicating fewer families with children. 19.3% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Farmington is $53,750. This is 45% lower than the state median of $98,141. It is also 33% lower than the national median of $80,734. The poverty rate stands at 21.4%. This is 116% higher than the state poverty rate of 9.9%. 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 11.6%. This is 128% higher than the state rate of 5.1%. The median home value is $334,600. Housing costs are 41% lower than the state median of $564,600. The home-value-to-income ratio of 6.2x suggests that housing affordability is a significant concern for many residents. 82.0% of occupied housing units are owner-occupied. This homeownership rate is 29% higher than the state average of 63.8%.

Race & Ethnicity

The largest racial or ethnic group in Farmington is White (non-Hispanic), making up 83.6% of the population. Hispanic or Latino residents account for 10.0%.

Education

16.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 58% lower than the state rate of 39.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 97.5%.

Data Sources & Methodology

All demographic data for Farmington, Washington 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 Washington state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 628 Census-designated places in Washington. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.