Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
The precinct map shows the 2024 presidential vote; the timeline scrubs the city’s overall result across 2004–2024, on current city boundaries.
President results by year
Vote totals, margins, and source status
HarrisDemocratic65.8%125TrumpRepublican30.5%58OtherAll other candidates3.7%7
D+35.3
Lead
67
Total
190
vs nation
D+36.7
BidenDemocratic77.8%179TrumpRepublican19.6%45OtherAll other candidates2.6%6
D+58.3
Lead
134
Total
230
vs nation
D+53.8
ClintonDemocratic84.5%131TrumpRepublican8.4%13OtherAll other candidates7.1%11
D+76.1
Lead
118
Total
155
vs nation
D+74.0
ObamaDemocratic68.8%110RomneyRepublican27.5%44OtherAll other candidates3.8%6
D+41.3
Lead
66
Total
160
vs nation
D+37.4
ObamaDemocratic68.3%86McCainRepublican27.0%34OtherAll other candidates4.8%6
D+41.3
Lead
52
Total
126
vs nation
D+34.0
KerryDemocratic66.7%68BushRepublican33.3%34OtherAll other candidates0.0%0
D+33.3
Lead
34
Total
102
vs nation
D+35.8
Key facts
2024 presidential margin
D+35.3MIT Election Lab
Population
3,6162024 5-year
Population density
4,018 / sq mi2024 5-year · TIGER/Line
Land area
0.9 sq miTIGER/Line
Median household income
$38,3882024 5-year
White (non-Hispanic)
0.0%2024 5-year
Black
0.0%2024 5-year
Hispanic / Latino
99.9%2024 5-year
Peak Democratic margin
D+76.1 in 2016MIT Election Lab
Participation
Turnout and midterm durability
Participation measured against the same-year citizen voting-age population. Audited cycles count total general-election participants — ballots or participating voters, not presidential candidate votes. Cycles before 2016 predate that series and are derived from the certified presidential returns instead; they are marked everywhere they appear and are excluded from the figures below.
2004–20248 cycles · 5 audited
2024 turnout
23.3%193 participants ÷ 828 CVAP
2020→2022 drop-off
-0.2 ptsPersistently low turnout
Drop-off vs state
-21.3 ptsPositive means a larger decline than the statewide pattern
Mechanical 2026
17.9%–23.5%Recent-cycle and two-cycle persistence scenarios; not a forecast
Participation by cycle
Presidential Midterm Derived, pre-2016
0%20%40%60%
27.7%
18.8%
20042008201220162018202020222024
Select a presidential cycle to show it on the map and results ledger above.
Cycle
Participants
CVAP
Turnout
Series
Quality
193
828 ± 259
23.3%
Audited
E/D
2022Mid
165
877 ± 259
18.8%
Audited
E/D
230
1,236 ± 319
18.6%
Audited
E/D
2018Mid
152
549 ± 136
27.7%
Audited
E/D
158
408 ± 123
38.7%
Audited
E/D
160
491
32.6%
Derived
—
126
472
26.7%
Derived
—
102
453 extrapolated
22.5%
Derived
—
Sources and methods
Audited cycles (2016, 2018, 2020, 2022, 2024) count total general-election participants against the same-year CVAP special tabulation, each cell carrying its own numerator and denominator quality grade. Derived cycles (2004, 2008, 2012) come from the certified presidential returns on this page over the ACS 5-year CVAP series, so they measure presidential votes cast rather than ballots — a floor on participation. Where a derived cycle predates the ACS its denominator is extrapolated rather than read, and says so on its own line below. They are shown for the longer arc and are excluded from the drop-off, excess-drop-off, and 2026 scenario figures above.
2024: numerator source 160, denominator source 157; estimated total ballots; preferred-county:block-reference-presidential-or-cvap-weight:v2; allocation share 100.0%; series 323/229.
2022: numerator source 160, denominator source 157; estimated total ballots; preferred-county:block-reference-presidential-or-cvap-weight:v2; allocation share 100.0%; series 322/184.
2020: numerator source 160, denominator source 157; estimated total ballots; preferred-county:block-reference-presidential-or-cvap-weight:v2; allocation share 100.0%; series 321/4.
2018: numerator source 160, denominator source 157; estimated total ballots; preferred-county:block-reference-presidential-or-cvap-weight:v2; allocation share 100.0%; series 320/139.
2016: numerator source 160, denominator source 157; estimated total ballots; preferred-county:block-reference-presidential-or-cvap-weight:v2; allocation share 100.0%; series 319/133.
2012 (derived): Certified presidential returns · ACS 5-year CVAP (B05003); presidential votes cast — a floor on participation, not a ballot count.
2008 (derived): Certified presidential returns · ACS 5-year CVAP (B05003); presidential votes cast — a floor on participation, not a ballot count.
2004 (derived): Certified presidential returns · extrapolated CVAP denominator; presidential votes cast — a floor on participation, not a ballot count; 2004 predates the ACS, so the denominator is a linear back-extrapolation from the 2008 and 2012 CVAP values, not a read figure.
presidential history
Party record book
Mattawa, WA · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
2004–2024 · 6 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Hillary Clinton2016
84.5%
131 votes · D+76.1
Runner-up · Joe Biden, 2020 · 77.8%
Republican
George W. Bush2004
33.3%
34 votes · D+33.3
Runner-up · Donald Trump, 2024 · 30.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
179votes
77.8% of the vote · D+58.3
Runner-up · Hillary Clinton, 2016 · 131 votes
Republican
Donald Trump2024
58votes
30.5% of the vote · D+35.3
Runner-up · Donald Trump, 2020 · 45 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Hillary Clinton2016
+74.0pts D vs U.S.
Place D+76.1 · U.S. D+2.1
Runner-up · Joe Biden, 2020 · +53.8 pts
Republican
John McCain2008
−34.0pts R vs U.S.
Place D+41.3 · U.S. D+7.3
Runner-up · George W. Bush, 2004 · −35.8 pts
U.S. House elections · 2 House
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row shows U.S. House votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
Mattawa · which candidate this place backed in each party’s presidential nominating contest, cycle by cycle. A primary is a contest inside one party, so it has no Democratic–Republican margin and is not part of the general-election record above.
Akashic reports votes cast, not delegates awarded. The two can disagree: Clinton led the 2008 national primary popular vote by less than half a point and did not win the nomination.
Primary returns are published at county grain. The figures below are Grant County, Washington, the county containing Mattawa — Mattawa’s own primary vote sits inside those totals and is not separately reported.
Presidential nominating contests in Mattawa, by party and cycle.
○no contest record — Akashic holds no result for that party and cycle here. It is not a claim that no contest was held. Telling apart a contest that was cancelled, one that went uncontested, and one simply not yet ingested needs a nominating-contest calendar, which is a separate ingest from results and does not exist yet.
Republican presidential primaries are not yet ingested — the Republican series runs from 1856 and is in scope. The row is kept so its absence is visible: a Democratic-only panel would otherwise read as though no one else held a contest.
Akashic carries 10 states for 2012 and 3 states for 2024. Cycles in which an incumbent president seeks renomination are thin by nature — few states run a contested primary — so a sparse column is politics, not a hole in the record.
County returns carry a leader and a lead over the runner-up, and nothing more. The full candidate field with vote shares is published at state grain — follow a cycle above to the state contest for it.
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.
