Grant County, Washington
Located in Washington, Grant County has a population of 101,799 residents and a median age of 33.7 years, making it the #611 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 15.8%. The median home value is $299,500, and the median household income is $73,267, which is 3% below the national median.
Demographics
Grant County has a population of 101,799, making it the #611 most populous county in the US. The median age is 33.7 years, which is 13.4% below the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Grant County is $73,267, ranking #958 out of 3,222 counties — 2.5% below the national median. The poverty rate is 15.8% and unemployment stands at 6.5%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Grant County is $299,500 (+6.2% vs national). Renters pay a median of $1,116/mo and the homeownership rate is 66.3%.
Median Home Value Trend
Rankings →Household Type
Education
In Grant County, 18.4% of adults age 25+ hold a bachelor's degree or higher, which is 45.3% below the national average, ranking #2,272 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Grant County is 76.8 years. 21.9% of adults report poor or fair health and 13.0% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
13.8% of adults in Grant County smoke , 42.0% are obese , and 16.7% report excessive drinking. The drug overdose death rate is 27.2 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Grant County is 4.7 per 100,000 and the suicide rate is 15.9 per 100,000. Motor vehicle deaths occur at a rate of 19.9 per 100,000.
Homicide Rate Trend
Families & Children
18.0% of children in Grant County live in poverty and the infant mortality rate is 5.0 per 1,000 live births. The teen birth rate is 25.4 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Grant County is 66.3%. The mean commute time is 22.2 min, which is 19.5% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Grant County voted Republican with a margin of 37.4%. The vote was 30% Dem / 67.4% Rep. Compared to 2020, the margin shifted 3.1 toward Republicans .
Vote Share Over Time
About Grant County, Washington
Grant County, Washington has a total population of 101,799, making it the 611th most populous county in the United States. The median age in Grant County is 33.7 years, which is 13.4% below the national median of 38.9 years.
The median household income in Grant County is $73,267, which ranks #958 of 3,222 counties nationwide. This is 2.5% below the national median of $75,149. The poverty rate is 15.8%, higher than the national rate of 12.6%. The unemployment rate stands at 6.5%.
The median home value in Grant County is $299,500, 6.2% above the national median. Renters in Grant County pay a median gross rent of $1,116 per month. The homeownership rate is 66.3%, compared to the national rate of 64.4%.
In Grant County, 18.4% of residents aged 25 and older hold a bachelor's degree or higher, 45.3% below the national average of 33.7%. Health insurance coverage stands at 86.4% of the population. The average commute time for workers is 22.2 min.
Grant County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 49.2% of the population, followed by Hispanic or Latino (43.9%) and Two or More Races (4.1%).
All data for Grant County, Washington comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.