† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupMattawaWashingtonUnited States
Mexican90.0%10.8%11.3%
Honduran1.8%—0.3%
Salvadoran1.8%0.4%0.7%
Guatemalan1.6%0.2%0.5%
Puerto Rican0.7%0.5%1.8%
Spanish0.5%0.3%—
German1.6%14.5%12.5%
English1.5%12.1%9.5%
Irish0.9%9.8%9.4%
American0.6%3.8%5.3%
Norwegian0.4%4.0%—
Scottish0.2%2.6%1.3%
French0.2%—1.6%
Italian0.2%3.1%4.8%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Mattawa
Washington
United States
Median age
21.7
38.5
39.1
Age 18–24
21.4%
8.5%
9.2%
Age 65 and older
3.2%
16.7%
17.2%
Household economy
Measure
Mattawa
Washington
United States
Median household income
$38,388
$98,141
$84,427
Poverty rate
33.3%
9.9%
12.5%
Bachelor's degree or higher (25+)
0.2%
39.3%
35.6%
Languages at home
Measure
Mattawa
Washington
United States
Speaks a non-English language at home
95.9%
21.5%
22.3%
Spanish
95.2%
9.1%
13.6%
Religious landscape
Measure
Mattawa
Washington
United States
Catholic
—
10.7%
18.6%
Evangelical Protestant
—
20.5%
16.5%
Unclaimed / not counted
—
58.8%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Mattawa, Washington
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+33.3%
2008
+41.3%
2012
+41.3%
2016
+76.1%
2020
+58.3%
2024
+35.3%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
65.8%Harris125
30.5%Trump58
3.7%
D+35.3
R+23.0
D+36.7
190
D
77.8%Biden179
19.6%Trump45
2.6%
D+58.3
R+17.9
D+53.8
230
D
84.5%Clinton131
8.4%Trump13
7.1%
D+76.1
D+34.9
D+74.0
155
D
68.8%Obama110
27.5%Romney44
3.8%
D+41.3
±0.0
D+37.4
160
D
68.3%Obama86
27.0%McCain34
4.8%
D+41.3
D+7.9
D+34.0
126
D
66.7%Kerry68
33.3%Bush34
0.0%
D+33.3
—
D+35.8
102
Mattawa's population is roughly 90% Hispanic or Latino, making it one of the most demographically concentrated communities in Washington state — a profile that shapes both its electoral participation patterns and its policy priorities around agriculture and immigration.
Across the recorded series it reached a Democratic high of 76.1 points in 2016. Between 2020 and 2024 the city moved 23.0 points toward the Republican candidate; the 2024 margin was 35.3 points.
A population of 3,616, a 0% non-Hispanic-white share, and a median household income of $38,388 describe the city.
In 2024, Mattawa, Washington voted Democratic by 35.3 points (D+35.3), carried by the Democratic candidate. Out of 190 votes cast, 125 went Democratic and 58 went Republican.
How many people live in Mattawa, Washington?
Mattawa, Washington has a population of 3,616 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Mattawa, Washington?
Median household income in Mattawa, Washington is $38,388 — below the national median of $80,734. The Washington state median is $98,141.
What is the political history of Mattawa, Washington?
Akashic tracks 6 presidential elections in Mattawa, Washington from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
