Liberty Lake Population

1980–2026

14,331

2026 projection

19.4% since 2020 (increase)

05K10K15K20K19801990200020102020

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Liberty Lake. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202614,331+3022.15%
202514,029+6855.13%
202413,344+2842.17%
202313,060+4073.22%
202212,653+2201.77%
202112,433+4303.58%
202012,003+4243.66%
201911,579+4744.27%
201811,105+7557.29%
201710,350+8248.65%

Showing 10 of 20 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Growth since 2020, compared

Liberty Lake is growing faster than Spokane County, Washington, and the U.S.

  • Liberty Lake+15.6%
  • Washington+3.5%
  • Spokane County+3.2%
  • United States+3.1%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

Liberty Lake Demographics

37.1median age

Median age

Female35.8 yrs
Male37.6 yrs

Adults

8,867
2,145 seniors (65+) · 24% of adults6,722 other adults

Sex

Female 54.1% · 6,890Male 45.9% · 5,847

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 127 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Liberty Lake Income

$118,723median household income

Median household income

$118,723

Half of households earn more, half earn less

Median earnings

$68,733

Typical yearly pay for a worker 25 or older.

Poverty rate

5%

About 1 in 20 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Liberty Lake Marital Status

64% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married64%72%59%
Never married20%17%22%
Divorced11%8%14%
Widowed5%4%5%
Separated<1%0%<1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201