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
HarrisDemocratic52.5%1,511TrumpRepublican45.7%1,314OtherAll other candidates1.8%52
D+6.8
Lead
197
Total
2,877
vs nation
D+8.3
BidenDemocratic53.9%1,537TrumpRepublican43.5%1,239OtherAll other candidates2.6%74
D+10.5
Lead
298
Total
2,850
vs nation
D+6.0
ClintonDemocratic45.3%1,144TrumpRepublican48.1%1,215OtherAll other candidates6.5%165
R+2.8
Lead
71
Total
2,524
vs nation
R+4.9
ObamaDemocratic53.7%1,263RomneyRepublican44.7%1,052OtherAll other candidates1.6%37
D+9.0
Lead
211
Total
2,352
vs nation
D+5.1
ObamaDemocratic57.6%1,364McCainRepublican40.7%964OtherAll other candidates1.7%41
D+16.9
Lead
400
Total
2,369
vs nation
D+9.6
KerryDemocratic53.6%1,199BushRepublican44.3%991OtherAll other candidates2.1%48
D+9.3
Lead
208
Total
2,238
vs nation
D+11.8
Key facts
2024 presidential margin
D+6.8MIT Election Lab
Population
4,6922024 5-year
Population density
1,043 / sq mi2024 5-year · TIGER/Line
Land area
4.5 sq miTIGER/Line
Median household income
$86,7602024 5-year
White (non-Hispanic)
91.4%2024 5-year
Black
1.0%2024 5-year
Hispanic / Latino
4.1%2024 5-year
Peak Democratic margin
D+16.9 in 2008MIT Election Lab
Peak Republican margin
R+2.8 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.
2004–20206 cycles · 3 audited
2020 turnout
71.6%2,898 participants ÷ 4,045 CVAP
2016→2018 drop-off
+19.2 ptsVolatile
Drop-off vs state
+9.0 ptsPositive means a larger decline than the statewide pattern
Participation by cycle
Presidential Midterm Derived, pre-2016
0%20%40%60%80%
55.0%
200420082012201620182020
Select a presidential cycle to show it on the map and results ledger above.
Cycle
Participants
CVAP
Turnout
Series
Quality
2,898
4,045 ± 456
71.6%
Audited
E/D
2018Mid
2,196
3,991 ± 333
55.0%
Audited
E/A
2,585
3,482 ± 259
74.2%
Audited
E/A
2,352
3,404
69.1%
Derived
—
2,369
3,393
69.8%
Derived
—
2,238
3,382 extrapolated
66.2%
Derived
—
Sources and methods
Audited cycles (2016, 2018, 2020) 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.
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
Colchester, CT · 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
Barack Obama2008
57.6%
1,364 votes · D+16.9
Runner-up · Joe Biden, 2020 · 53.9%
Republican
Donald Trump2016
48.1%
1,215 votes · R+2.8
Runner-up · Donald Trump, 2024 · 45.7%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
1,537votes
53.9% of the vote · D+10.5
Runner-up · Kamala Harris, 2024 · 1,511 votes
Republican
Donald Trump2024
1,314votes
45.7% of the vote · D+6.8
Runner-up · Donald Trump, 2020 · 1,239 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
John Kerry2004
+11.8pts D vs U.S.
Place D+9.3 · U.S. R+2.5
Runner-up · Barack Obama, 2008 · +9.6 pts
Republican
Donald Trump2016
+4.9pts R vs U.S.
Place R+2.8 · U.S. D+2.1
Runner-up · Mitt Romney, 2012 · −5.1 pts
U.S. House elections · 2 House
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.
Colchester · Akashic carries this place’s presidential nominating contests, but not at this place’s own grain.
Connecticut’s presidential primary returns are aggregated to the eight counties retired as county-equivalents in 2022. Akashic publishes the nine planning regions that replaced them, and their boundaries cross the old county lines. The presidential record elsewhere on this page crosses that boundary because a general-election county row carries each party’s votes, and votes can be apportioned and disclosed as an estimate. A primary county row carries a leader and a lead over the runner-up and nothing else: there is no per-candidate vote to apportion, and who led is not a quantity that can be weighted. So the record is complete and published — at Connecticut’s state contest, not at this grain. See Connecticut’s Democratic presidential primary.
Colchester sits in New England. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 16.9 points in 2008 and a Republican high of 2.8 points in 2016. Between 2020 and 2024 the city moved 3.6 points toward the Republican candidate; the 2024 margin was 6.8 points.
A population of 4,692, a 91% non-Hispanic-white share, and a median household income of $86,760 describe the city.
In 2024, Colchester, Connecticut voted Democratic by 6.8 points (D+6.8), carried by the Democratic candidate. Out of 2,877 votes cast, 1,511 went Democratic and 1,314 went Republican.
When did Colchester, Connecticut last vote Republican?
The most recent presidential election in which Colchester, Connecticut voted Republican was 2016.
How many people live in Colchester, Connecticut?
Colchester, Connecticut has a population of 4,692 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Colchester, Connecticut?
Median household income in Colchester, Connecticut is $86,760 — above the national median of $80,734. The Connecticut state median is $95,781.
What is the political history of Colchester, Connecticut?
Akashic tracks 6 presidential elections in Colchester, Connecticut from 2004 to 2024. Of those, 5 went Democratic and 1 went Republican.
