Grant County, Washington Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Grant County, WA Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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B
Health Around averageLess healthy than 74% of counties in Washington
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D
Income Well below averageLess wealthy than 74% of counties in Washington
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F
Education Well below averageAmong the 3 least educated counties in Washington
Source: Map AI Methodology
Population: density and quick facts
| Metric | Grant County | Washington Avg | U.S. Average |
|---|---|---|---|
| Population | 101,798 | 7,801,159 | 337,468,954 |
| Population density (per sq mi) | 36.5 | 109.3 | 86.4 |
| Population growth (%/yr) | 1.20% | 1.21% | 0.59% |
| Median age | 32.1 | 36.2 | 37.3 |
| Households | 35,398 | 3,058,619 | 130,235,071 |
Population in Grant County grew by 21.8% from 2009 to 2024, reaching 101,798 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Grant County is Gen Z, aged 13–28, at 24.2% of residents. That is 2.8 points above Washington as a whole.
- Gen Z 13–28 24,658 24.2% +2.8 pts
- Millennials 29–44 20,922 20.6% -2.8 pts
- Gen X 45–60 17,780 17.5% -2.0 pts
- Boomers 61–79 15,039 14.8% -1.5 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Washington, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 48.8% of the people living in Grant County and men 51.2%.
- Women 48.8% Washington 49.7%
- Men 51.2% Washington 50.3%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Grant County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Grant County has a the economy index of D, which means it is barely prosperous.
| Metric | Grant County | Washington Avg | U.S. Average |
|---|---|---|---|
| Median household income | $73,032 | $98,224 | $80,455 |
| Income growth (%/yr) | 4.82% | 5.64% | 4.80% |
| Unemployment rate | 6.5% | 5.0% | 5.2% |
The median household income in Grant County is about 26% lower than in Washington.
Housing
| Metric | Grant County | Washington Avg | U.S. Average |
|---|---|---|---|
| Median home price | $238,970 | $485,016 | $248,835 |
| Median rent | $1,116 | $1,759 | $1,407 |
| Homeownership rate | 66.3% | 63.8% | 65.2% |
The median home price in Grant County is about 17.8 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,116 per month for that long.
Commute Time & Mobility
Commuters in Grant County spend about 33 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 136 hours, about 5.7 full days, spent commuting.
| Metric | Grant County | Washington Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 16.3 | 22.4 | 22.4 |
| Round-trip commute (min) | 32.6 | 44.8 | 44.8 |
| Yearly time spent (hours) | 136 | 187 | 187 |
| Estimated yearly cost | $4,213 | $5,785 | $5,790 |
| Work from home | 9.7% | 19.8% | 15.0% |
| Highway traffic (vehicles/day) | 4,192 | 10,119 | 8,813 |
| Local road traffic (vehicles/day) | 432 | 1,525 | 1,355 |
Fastest commutes among counties in
Washington:
Walla Walla County (12.2 min), San Juan County (12.3 min), Asotin County (13.2 min).
Slowest:
Mason County (32.0 min), Garfield County (28.4 min), Snohomish County (28.3 min).
The average commute time in Grant County is 16 minutes, shorter than the 22 minutes in Washington.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Grant County has a education index of F, which means it scores poorly in education.
| Metric | Grant County | Washington Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 16.1% | 35.1% | 31.6% |
| Average household size | 2.79 | 2.50 | 2.53 |
Highest education index among counties in
Washington:
King County (0.4), San Juan County (0.4), Jefferson County (0.4).
Lowest:
Adams County (0.2), Yakima County (0.2), Grant County (0.2).
Health
Grant County has a health index of B, which means it is quite healthy.
| Metric | Grant County | Washington Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 79.9 | 79.6 | 78.3 |
| Self-rated poor health | 17.5% | 15.4% | 16.3% |
| Smokers | 17.4% | 16.4% | 19.0% |
Highest health index among counties in
Washington:
King County (0.8), Whitman County (0.8), San Juan County (0.8).
Lowest:
Adams County (0.8), Okanogan County (0.8), Pacific County (0.8).
Grant County, WA Compared With Nearby Counties
Grant County, WA is the 2nd largest of the 5 counties compared here, 101,798 residents against a local median of 71,634. The measure that sets Grant County, WA apart most is median home price: $238,970, 28% below the local median of $333,481.
The counties themselves spread $292,313 on median home price, so Grant County, WA sits at one end of an already wide local range rather than apart from it. Grant County, WA has the 4th highest median home price of the 5 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Grant County, WA | 101,798 | $73,032 #4/5 | $238,970 #4/5 | 16.3 min #1/5 |
| Douglas County, WA | 44,366 | $82,191 | $450,000 | 16.8 min |
| Franklin County, WA | 98,902 | $86,960 | $387,681 | 18.6 min |
| Adams County, WA | 20,799 | $66,281 | $157,686 | 16.7 min |
| Benton County, WA | 212,794 | $89,893 | $279,282 | 18.2 min |
Frequently Asked Questions
Common questions about Grant County, Washington.
How many people live in Grant County, Washington?
About 101,798 people live in Grant County, Washington, in 35,398 households of 2.8 people on average. The median age is 32.1, so residents are younger than the U.S. median of 37.3 by about 5 years.
How densely populated is Grant County, Washington?
Averaged over its land area, Grant County, Washington has 36 people per square mile, a density typical of rural areas. That is about 42% of the U.S. average of 86.
How affordable is housing in Grant County, Washington?
The median home costs 3.3 times the median household income ($238,970 against $73,032), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $1,116 a month takes about 18% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
What share of adults in Grant County, Washington have a college degree?
16.1% of adults in Grant County, Washington hold a bachelor's degree or higher (about 1 in 6), well below the U.S. share of 31.6%.
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