Liberty Lake, Washington Demographics & Population 2026

Population Overview

Liberty Lake is a small city located in Washington, within Spokane County. The total population is 12,737. It ranks as the 109th most populous out of 628 Census-designated places in Washington.

Age Demographics

The median age in Liberty Lake is 37.1 years. This is 3% lower than the state median of 38.3 years. With 30.4% of the population under 18, Liberty Lake has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Liberty Lake is $118,723. This is 21% higher than the state median of $98,141. It is also 47% higher than the national median of $80,734. The poverty rate stands at 5.0%. This is 50% lower than the state poverty rate of 9.9%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 2.7%. This is 46% lower than the state rate of 5.1%. The median home value is $577,500. Housing costs are 2% higher than the state median of $564,600. The home-value-to-income ratio is 4.9x. 67.0% of occupied housing units are owner-occupied. This homeownership rate is 5% higher than the state average of 63.8%.

Race & Ethnicity

Liberty Lake has a predominantly White (non-Hispanic) population, comprising 87.6% of all residents. Hispanic or Latino residents account for 5.4%. The Black or African American population (0.5%) is well below the state average of 3.9%. The Hispanic or Latino population (5.4%) is well below the state average of 14.4%. The Asian population (1.9%) is well below the state average of 9.7%.

Education

48.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 23% higher 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 97.9%. Notably, 17.6% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Liberty Lake, 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.