Mattawa, Washington Demographics & Population 2026
During the 2020–2024 ACS period, Mattawa, Washington had a total population of 3,616, the 233rd largest city in Washington, with a median household income of $38,388, which is 61% lower than the state average. The poverty rate is 33.3%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 61% below the state average, indicating significant economic challenges.
- More than 1 in 4 residents live below the poverty line (33.3%), well above the national average of 12.4%.
- Only 0.2% of adults have a bachelor's degree, well below the national average of 35.7%.
- Unemployment rate of 11.6% is notably above the national average.
Mattawa Quick Facts
How Mattawa Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 3,553 | 3,616 | +1.8% |
| Median household income | $41,250 | $38,388 | -6.9% |
How Mattawa Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 56 | National average: 61
Education
Educational Attainment (Adults 25+)
Mattawa Rankings in Washington
Explore Washington Rankings
Other Cities in Grant County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Moses Lake | 26,083 | $74,752 | 15.8% | $310,000 |
| Ephrata | 8,560 | $69,551 | 20.8% | $252,000 |
| Quincy | 7,998 | $87,902 | 6.2% | $336,800 |
| Cascade Valley | 4,609 | $60,715 | 12.6% | N/A |
| Moses Lake North | 4,517 | $57,602 | 29.8% | $242,200 |
| Desert Aire | 2,788 | $85,960 | 7.8% | $455,100 |
| Warden | 2,581 | $57,743 | 20.9% | $189,900 |
| Royal City | 1,683 | $50,478 | 35.8% | $228,600 |
| Coulee Dam | 1,595 | $66,732 | 15.8% | $238,500 |
| Lakeview | 1,584 | $45,787 | 18.6% | $195,200 |
Cities Similar to Mattawa
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Goldendale | 3,483 | $39,783 | $199,300 | 8.1% | 29.7% |
| Raymond | 3,210 | $48,516 | $267,500 | 20.3% | 13.8% |
| Benton City | 3,695 | $63,542 | $355,200 | 10.5% | 11.3% |
| Forks | 3,400 | $60,481 | $227,200 | 31.3% | 19.6% |
| Granger | 3,705 | $66,250 | $210,200 | 11.1% | 23.3% |
Population Overview
Mattawa is a small community located in Washington, within Grant County. The total population is 3,616. It ranks as the 233rd most populous out of 628 Census-designated places in Washington.
Age Demographics
The median age in Mattawa is 21.7 years. This is 43% lower than the state median of 38.3 years. With 36.9% of the population under 18, Mattawa has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in Mattawa is $38,388. This is 61% lower than the state median of $98,141. It is also 52% lower than the national median of $80,734. The poverty rate stands at 33.3%. This is 236% higher than the state poverty rate of 9.9%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 11.6%. This is 129% higher than the state rate of 5.1%. 25.0% of occupied housing units are owner-occupied. This homeownership rate is 61% lower than the state average of 63.8%.
Race & Ethnicity
Mattawa has a predominantly Hispanic or Latino population, comprising 99.8% of all residents. White (non-Hispanic) residents account for 0.1%. The White (non-Hispanic) population (0.1%) is well below the state average of 63.1%. The Hispanic or Latino population is significantly higher than the state average (99.8% vs 14.4%). The Asian population (0.1%) is well below the state average of 9.7%.
Education
0.2% 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 99% 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 29.4%.
Data Sources & Methodology
All demographic data for Mattawa, Washington is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Washington state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 628 Census-designated places in Washington. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Mattawa, Washington?
Mattawa, Washington has a population of 3,616 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Mattawa, WA?
The median household income in Mattawa is $38,388, which is 52% lower than the national median of $80,734.
What is the poverty rate in Mattawa, WA?
The poverty rate in Mattawa is 33.3%. This means approximately 1,203 residents live below the federal poverty line.
What is the racial makeup of Mattawa, Washington?
Mattawa's population is 0.1% White, 0.0% Black, 99.8% Hispanic/Latino, and 0.1% Asian.
What is the median home value in Mattawa, WA?
The Census Bureau does not publish a reliable median home value estimate for Mattawa — there are too few owner-occupied homes in the ACS sample. The national median is $332,700.
How educated is Mattawa, Washington?
0.2% of adults (25+) in Mattawa hold a bachelor's degree or higher, and 0.0% hold a graduate or professional degree.