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Grant County, Washington Demographics 2026

Grant County, Washington has a population of 101,799, the 13th most populous county in Washington. The median household income is $73,267 and the median home value is $299,500. The poverty rate is 15.8%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Grant County Quick Facts

Population 101,799
Median Household Income $73,267
Median Home Value $299,500
Poverty Rate 15.8%
Unemployment Rate 6.5%
Median Age 33.7 years
Homeownership Rate 66.3%
Affordability Ratio 4.1x
Bachelor's Degree+ 18.4%
High School Graduation 81.4%
Cities/Places 26
Population 101,799 13th of 39
Median Income $73,267 25% lower than state
Poverty Rate 15.8%
Unemployment 6.5%

How Grant County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric2019–20232020–2024Change
Population100,428101,799+1.4%
Median household income$71,115$73,267+3.0%
Median home value$275,700$299,500+8.6%

Economy & Housing

Household Income Distribution

Under $25K 15.5%
$25K-$50K 18.7%
$50K-$100K 34.1%
$100K+ 31.6%
Detailed income brackets
Under $10K
4.7%
$10K-$15K
4.1%
$15K-$20K
3.9%
$20K-$25K
2.8%
$25K-$30K
3.7%
$30K-$35K
3.8%
$35K-$40K
3.2%
$40K-$45K
4.4%
$45K-$50K
3.6%
$50K-$60K
7.3%
$60K-$75K
9.8%
$75K-$100K
17.1%
$100K-$125K
10.6%
$125K-$150K
6.0%
$150K-$200K
7.2%
$200K+
7.9%

Employment

6.5% Unemployment Rate State: 5.1%|National: 5.2%
62.3% Labor Force Participation

Housing Overview

Owner 66.3%
Renter 33.7%
Affordability Index Moderate
4.1x home value to income ratio
Median gross rent $1,116/mo 18.3% of median household income annually

People & Demographics

Diversity Index

56out of 100
High Diversity

A diverse community with significant representation from multiple racial and ethnic groups.

State average: 56 | National average: 61

Education

Cities & Places in Grant County

CityPopulationMedian IncomePovertyHome Value
Moses Lake26,083$74,75215.8%$310,000
Ephrata8,560$69,55120.8%$252,000
Quincy7,998$87,9026.2%$336,800
Cascade Valley4,609$60,71512.6%N/A
Moses Lake North4,517$57,60229.8%$242,200
Mattawa3,616$38,38833.3%N/A
Desert Aire2,788$85,9607.8%$455,100
Warden2,581$57,74320.9%$189,900
Royal City1,683$50,47835.8%$228,600
Coulee Dam1,595$66,73215.8%$238,500
Lakeview1,584$45,78718.6%$195,200
Soap Lake1,508$48,12527.4%$250,000
Grand Coulee913$64,25028.3%$222,000
Electric City820$80,2216.5%$198,400
George669$55,0006.0%$155,000
Marine View471$58,8540.0%$248,600
Coulee City439$61,25010.9%$165,500
Schwana387$76,19021.4%N/A
Beverly356$77,11515.4%N/A
Banks Lake South348$53,5587.5%$252,100
Crescent Bar271$121,1967.0%$563,600
Wheeler230N/A0.0%N/A
Wilson Creek206$63,75015.5%$162,500
Hartline182$88,1257.7%$186,100
Sunland Estates91$80,1560.0%$652,800
Krupp33N/A24.2%$187,500

Explore Washington Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Population Overview

Grant County is located in Washington with a total population of 101,799. It is the 13th most populous county out of 39 in Washington. The county encompasses 26 Census-designated places.

Age Demographics

The median age in Grant County is 33.7 years. This is 12% lower than the state median of 38.3 years. With 28.3% of the population under 18, Grant County has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Grant County is $73,267. This is 25% lower than the state median of $98,141. It is also 9% lower than the national median of $80,734. The poverty rate stands at 15.8%. This is 60% higher than the state poverty rate of 9.9%. The unemployment rate is 6.5%. This is 28% higher than the state rate of 5.1%. The median home value is $299,500. Housing costs are 47% lower than the state median of $564,600. The home-value-to-income ratio is 4.1x. 66.3% of occupied housing units are owner-occupied. This homeownership rate is 4% higher than the state average of 63.8%.

Race & Ethnicity

The largest racial or ethnic group in Grant County is White (non-Hispanic), making up 49.2% of the population. Hispanic or Latino residents account for 43.9%. The Black or African American population (1.2%) is well below the state average of 3.9%. The Hispanic or Latino population is significantly higher than the state average (43.9% vs 14.4%). The Asian population (0.8%) is well below the state average of 9.7%.

Education

18.4% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. This is 53% 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 81.4%.

Data Sources & Methodology

All figures for Grant County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Washington and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Grant County, Washington?

Grant County has a population of 101,799, making it the 13th most populous county in Washington.

What is the median income in Grant County?

The median household income in Grant County is $73,267 with a poverty rate of 15.8%.

How many cities are in Grant County, Washington?

Grant County contains 26 Census-designated places.