County · Washington
Grant County, Washington
Grant County, Washington. Grant County had 105,727 residents in 2025 by the Census Bureau's estimate, up 6.6% since 2020, faster than Washington (+3.8%). It holds 26 places (15 cities, villages and boroughs and 11 census-designated) and 23 census tracts. GEOID 53025.
Grant County is the county of the Moses Lake, WA micropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
105,727
Census Bureau estimate (no margin published)
2020 Census count: 99,123 · ACS 2020-2024: 101,799
Median household income
$73,267
±$3,441 (90% margin)
Washington: $98,141
Median home value
$299,500
±$12,090 (90% margin)
Washington: $564,600
Median gross rent
$1,116
±$40 (90% margin)
Washington: $1,760
How many people live in Grant County, and is it growing?
The 2020 Census counted 99,123 residents in Grant County. The Census Bureau estimates 105,727 for July 1, 2025, up 6.6% since 2020, faster than Washington (+3.8%). The 2020-2024 American Community Survey puts the population at 101,799 over 2,680 square miles of land.
| Measure | Grant County | Washington | Change since 2015-2019 |
|---|---|---|---|
| Total population | 101,799 | 7,816,116 | +6,297 |
| Households | 35,398±515 | 3,064,820 | +4,580 |
| Average household size | 2.79±0.04 | 2.50 | −0.28 |
| Housing units | 40,214±136 | 3,306,620 | +2,738 |
Grant County's population since 2000
From 74,698 in 2000 to 105,727 in 2025: up 41.5%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Grant County?
Grant County holds 26 places: 15 cities, villages and boroughs (incorporated places) and 11 census-designated places. The largest is Moses Lake with 27,469 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Moses Lake | 25,146 | $74,752 |
|---|---|---|
| Ephrata | 8,477 | $69,551 |
| Quincy | 7,543 | $87,902 |
| Cascade Valley | 4,332 | $60,715 |
| Moses Lake North | 4,050 | $57,602 |
| Mattawa | 3,335 | $38,388 |
| Warden | 2,449 | $57,743 |
| Desert Aire | 2,288 | $85,960 |
| Royal City | 1,776 | $50,478 |
| Soap Lake | 1,691 | $48,125 |
| Lakeview | 1,068 | $45,787 |
| Grand Coulee | 972 | $64,250 |
| Electric City | 956 | $80,221 |
| GeorgeGEOID 5326455 | 809 | $55,000 |
| Coulee CityGEOID 5315080 | 549 | $61,250 |
| Marine ViewGEOID 5343552 | 405 | $58,854 |
| Crescent BarGEOID 5315603 | 325 | $121,196 |
| BeverlyGEOID 5305770 | 266 | $77,115 |
| Banks Lake SouthGEOID 5304125 | 234 | $53,558 |
| SchwanaGEOID 5361925 | 215 | $76,190 |
| Wilson Creek | 204 | $63,750 |
| HartlineGEOID 5329920 | 180 | $88,125 |
| Sunland EstatesGEOID 5368557 | 179 | $80,156 |
| WheelerGEOID 5378050 | 74 | not published |
| KruppGEOID 5336395 | 49 | not published |
| Coulee Dam | 1,211 | $66,732 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Grant County?
The median resident of Grant County is 33.7 years old; 28.3% are under 18 and 14.6% are 65 or older. The largest group is non-Hispanic white residents at 49.2%, then Hispanic or Latino residents (of any race) at 43.9%. 16.1% of residents were born outside the United States.
| Measure | Grant County | Washington | Change since 2015-2019 |
|---|---|---|---|
| Median age | 33.7±0.3 | 38.3 | +0.8 |
| Under 18 years | 28.3% | 21.4% | – |
| 65 years and over | 14.6%±0.1 pts | 16.6% | – |
| Hispanic or Latino (any race) | 43.9% | 14.4% | +2.3 pts |
| White alone, not Hispanic | 49.2%±0.6 pts | 63.1% | −4.8 pts |
| Black or African American alone, not Hispanic | 1.2%±0.2 pts | 3.8% | +0.4 pts |
| Asian alone, not Hispanic | 0.8%±0.1 pts | 9.7% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.6%±0.2 pts | 0.8% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.7% | – |
| Two or more races, not Hispanic | 4.1%±0.6 pts | 6.8% | – |
| Some other race alone, not Hispanic | 0.2%±0.1 pts | 0.6% | – |
| Born outside the United States | 16.1%±1.2 pts | 15.4% | −2.4 pts |
| Speak a language other than English at home (age 5+) | 35.6%±1.2 pts | 21.4% | – |
| Civilian veterans (age 18+) | 6.5%±0.8 pts | 7.8% | – |
| With a disability | 14.5%±1.0 pts | 13.6% | – |
| No health insurance coverage | 13.6%±1.3 pts | 6.3% | no clear change |
| High school graduate or higher (age 25+) | 81.4%±1.5 pts | 92.3% | – |
| Bachelor's degree or higher (age 25+) | 18.4%±1.2 pts | 39.6% | no clear change |
| Graduate or professional degree (age 25+) | 5.6%±0.9 pts | 15.6% | – |
| Moved from another state in the past year | 1.2%±0.5 pts | 2.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Grant County earn?
Half of Grant County's 35,398 households earn less than $73,267 a year (±$3,441), against $98,141 in Washington. In 2015-2019 the median was $68,372 in 2024 dollars, so it rose by $4,895 after inflation. 15.8% of residents live below the poverty line.
| Measure | Grant County | Washington | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $73,267±$3,441 | $98,141 | +$4,895 |
| Mean household income | $92,003±$3,969 | $134,588 | – |
| Per capita income | $33,242±$1,436 | $53,744 | +$3,361 |
| People below the poverty line | 15.8%±1.8 pts | 9.9% | no clear change |
| Children under 18 below the poverty line | 18.7%±3.4 pts | 11.6% | no clear change |
| Households receiving SNAP | 16.5%±1.7 pts | 11.5% | – |
| Households with a broadband subscription | 90.8%±1.6 pts | 93.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Grant County?
Owners occupy 66.3% of Grant County's occupied homes and renters 33.7%. The median owner-occupied home is valued at $299,500 by its owner (±$12,090). The median renter pays $1,116 a month including utilities, and 34.6% of renters pay 35% or more of their income on rent.
| Measure | Grant County | Washington | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $299,500±$12,090 | $564,600 | +$81,052 |
| Median gross rent | $1,116±$40 | $1,760 | +$150 |
| Renters paying 35% or more of income on rent | 34.6%±4.1 pts | 40.1% | +8.8 pts |
| Median monthly owner costs, with a mortgage | $1,670±$55 | $2,445 | – |
| Owner-occupied homes | 66.3%±2.5 pts | 63.8% | +3.8 pts |
| Housing units | 40,214±136 | 3,306,620 | +2,738 |
| Homeowner vacancy rate | 1.1%±0.5 pts | 0.7% | – |
| Rental vacancy rate | 3.2%±1.5 pts | 4.5% | – |
| Single-family detached homes | 58.5%±2.1 pts | 61.9% | – |
| Mobile homes | 23.5%±1.6 pts | 5.5% | – |
| Built 2020 or later | 2.1%±0.6 pts | 2.3% | – |
| Built 1939 or earlier | 4.4%±0.7 pts | 9.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Grant County building?
Builders took permits for 431 new housing units across Grant County in 2025 (374 single-family), 4.1 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Grant County get to work?
73.2% of Grant County's workers drive alone and 9.7% work from home. The average trip to work takes 20.2 minutes. The unemployment rate in 2020-2024 averaged 6.5%.
| Measure | Grant County | Washington | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 62.3%±1.4 pts | 64.5% | – |
| Unemployment rate | 6.5%±1.2 pts | 5.1% | no clear change |
| Drove alone to work | 73.2%±2.1 pts | 63.4% | – |
| Carpooled | 12.4%±1.9 pts | 8.5% | – |
| Public transportation | 1.6%±0.9 pts | 3.4% | – |
| Walked | 1.9%±0.5 pts | 3.0% | – |
| Worked from home | 9.7%±1.4 pts | 19.8% | +3.6 pts |
| Mean travel time to work | 20.2 min±1.3 | 26.6 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Grant County's census tracts?
Grant County is divided into 23 census tracts. Among those with a reliable estimate, median household income runs from $45,385 (Tract 108) to $105,047 (Tract 111.01).
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Grant County compare with Washington's other counties?
| Measure | Rank |
|---|---|
| Population | 13th of 39 |
| Growth 2020-2025 | 11th of 39 |
| Residents per square mile | 20th of 39 |
| Median household income | 23rd of 39 |
| Median home value | 34th of 39 |
| Median gross rent | 22nd of 39 |
| Poverty rate | 5th of 39 |
| Bachelor's degree or higher | 35th of 39 |
| Median age | 35th of 39 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Grant County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.