- Lead
- 15,308
- Total
- 142,880
- vs nation
- D+12.2
- Turnout
- —
Southeastern Connecticut Planning Region, CT
President margin by year
Place winner margin
President results by year
Vote totals, margins, and source status
- Lead
- 20,797
- Total
- 144,926
- vs nation
- D+9.9
- Turnout
- —
- Lead
- 7,014
- Total
- 128,303
- vs nation
- D+3.4
- Turnout
- —
- Lead
- 21,327
- Total
- 119,392
- vs nation
- D+14.0
- Turnout
- —
- Lead
- 26,605
- Total
- 129,590
- vs nation
- D+13.3
- Turnout
- —
- Lead
- 16,031
- Total
- 122,969
- vs nation
- D+15.5
- Turnout
- —
- Lead
- 19,898
- Total
- 113,170
- vs nation
- D+17.1
- Turnout
- —
- Lead
- 22,176
- Total
- 107,148
- vs nation
- D+12.2
- Turnout
- —
Who lives here
Exact values for this place, its state, and the United States.
Communities and origins
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 | Southeastern Connecticut Planning Region | Connecticut | United States |
|---|---|---|---|
| Median age | 41.1 | 41.2 | 39.1 |
| Age 18–24 | 9.8% | 9.3% | 9.2% |
| Age 65 and older | 19.4% | 18.5% | 17.2% |
Household economy
| Measure | Southeastern Connecticut Planning Region | Connecticut | United States |
|---|---|---|---|
| Median household income | $86,586 | $95,781 | $84,427 |
| Poverty rate | 10.7% | 10.0% | 12.5% |
| Bachelor's degree or higher (25+) | 35.8% | 42.5% | 35.6% |
Languages at home
| Measure | Southeastern Connecticut Planning Region | Connecticut | United States |
|---|---|---|---|
| Speaks a non-English language at home | 15.3% | 23.4% | 22.3% |
| Spanish | 9.4% | 12.8% | 13.6% |
| French (incl. Cajun & Haitian) | 1.1% | 1.2% | 0.7% |
| Other Indo-European | 1.6% | 4.0% | 2.0% |
| Chinese (incl. Mandarin & Cantonese) | 1.0% | 0.9% | 1.1% |
Religious landscape
| Measure | Southeastern Connecticut Planning Region | Connecticut | United States |
|---|---|---|---|
| Catholic | 20.8% | 28.0% | 18.6% |
| Evangelical Protestant | 8.8% | 6.5% | 16.5% |
| Unclaimed / not counted | 60.3% | 54.0% | 51.5% |
| Mainline Protestant | 5.6% | 6.0% | 5.2% |
Key facts
- 2024 presidential margin
- D+10.7MIT Election Lab
- Population
- 279,9712024 5-year
- Median household income
- $86,5862024 5-year
- White (non-Hispanic)
- 70.6%2024 5-year
- Black
- 4.9%2024 5-year
- Hispanic / Latino
- 15.0%2024 5-year
- Peak Democratic margin
- D+39.0 in 1964MIT Election Lab
- Peak Republican margin
- R+41.0 in 1896MIT Election Lab
- Most similar
- Naugatuck Valley Planning Region, CT · twin score 97.0
| Kamala Harris ✓Democratic | 54.5% | 77,832 |
|---|---|---|
| Donald TrumpRepublican | 43.8% | 62,524 |
| OtherAll other candidates | 1.8% | 2,524 |
Precinct-level results (19 precincts) — table
| Precinct | Winner | Margin |
|---|---|---|
| 180-Bozrah | Republican | R+12.5 |
| 180-Colchester | Democratic | D+7.0 |
| 180-East Lyme | Democratic | D+25.0 |
| 180-Franklin | Republican | R+9.7 |
| 180-Griswold | Republican | R+18.8 |
| 180-Groton | Democratic | D+23.6 |
| 180-Lebanon | Republican | R+8.3 |
| 180-Ledyard | Democratic | D+8.9 |
| 180-Lisbon | Republican | R+11.3 |
| 180-Montville | Republican | R+0.9 |
| 180-New London | Democratic | D+43.3 |
| 180-North Stonington | Republican | R+3.1 |
| 180-Norwich | Democratic | D+17.2 |
| 180-Preston | Republican | R+13.3 |
| 180-Salem | Republican | R+3.1 |
| 180-Sprague | Republican | R+15.2 |
| 180-Stonington | Democratic | D+26.8 |
| 180-Waterford | Democratic | D+10.4 |
| 180-Windham | Democratic | D+19.8 |
Precinct data
Results by precinct
19 precincts · 136,994 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -180-Groton180-Groton | 10,284 | 6,296 | 333 | 16,913 | 60.8% | 37.2% | D+23.6 |
|---|---|---|---|---|---|---|---|
| Precinct -180-Norwich180-Norwich | 8,617 | 6,051 | 252 | 14,920 | 57.8% | 40.6% | D+17.2 |
| Precinct -180-Waterford180-Waterford | 6,507 | 5,258 | 201 | 11,966 | 54.4% | 43.9% | D+10.4 |
| Precinct -180-East Lyme180-East Lyme | 7,272 | 4,326 | 193 | 11,791 | 61.7% | 36.7% | D+25.0 |
| Precinct -180-Stonington180-Stonington | 7,379 | 4,224 | 179 | 11,782 | 62.6% | 35.9% | D+26.8 |
| Precinct -180-Colchester180-Colchester | 5,002 | 4,332 | 173 | 9,507 | 52.6% | 45.6% | D+7.0 |
| Precinct -180-Montville180-Montville | 4,316 | 4,397 | 141 | 8,854 | 48.7% | 49.7% | R+0.9 |
| Precinct -180-New London180-New London | 6,248 | 2,420 | 177 | 8,845 | 70.6% | 27.4% | D+43.3 |
| Precinct -180-Ledyard180-Ledyard | 4,443 | 3,702 | 173 | 8,318 | 53.4% | 44.5% | D+8.9 |
| Precinct -180-Windham180-Windham | 4,718 | 3,127 | 175 | 8,020 | 58.8% | 39.0% | D+19.8 |
| Precinct -180-Griswold180-Griswold | 2,443 | 3,591 | 88 | 6,122 | 39.9% | 58.7% | R+18.8 |
| Precinct -180-Lebanon180-Lebanon | 2,009 | 2,381 | 70 | 4,460 | 45.0% | 53.4% | R+8.3 |
| Precinct -180-North Stonington180-North Stonington | 1,560 | 1,661 | 66 | 3,287 | 47.5% | 50.5% | R+3.1 |
| Precinct -180-Preston180-Preston | 1,194 | 1,569 | 55 | 2,818 | 42.4% | 55.7% | R+13.3 |
| Precinct -180-Salem180-Salem | 1,263 | 1,345 | 52 | 2,660 | 47.5% | 50.6% | R+3.1 |
| Precinct -180-Lisbon180-Lisbon | 1,031 | 1,301 | 51 | 2,383 | 43.3% | 54.6% | R+11.3 |
| Precinct -180-Bozrah180-Bozrah | 685 | 885 | 25 | 1,595 | 42.9% | 55.5% | R+12.5 |
| Precinct -180-Sprague180-Sprague | 630 | 863 | 38 | 1,531 | 41.1% | 56.4% | R+15.2 |
| Precinct -180-Franklin180-Franklin | 545 | 663 | 14 | 1,222 | 44.6% | 54.3% | R+9.7 |
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | −6.1% |
| 1880 | −9.7% |
| 1884 | −7.1% |
| 1888 | −2.1% |
| 1892 | No data |
| 1896 | −41.0% |
| 1900 | −17.9% |
| 1904 | −19.2% |
| 1908 | −20.9% |
| 1912 | +7.8% |
| 1916 | −0.3% |
| 1920 | −29.4% |
| 1924 | −32.0% |
| 1928 | −12.3% |
| 1932 | +0.3% |
| 1936 | +7.3% |
| 1940 | +9.6% |
| 1944 | +9.7% |
| 1948 | +3.7% |
| 1952 | −9.5% |
| 1956 | −22.5% |
| 1960 | +4.2% |
| 1964 | +39.0% |
| 1968 | +6.0% |
| 1972 | −26.5% |
| 1976 | −0.7% |
| 1980 | −10.6% |
| 1984 | −23.7% |
| 1988 | −3.6% |
| 1992 | +12.7% |
| 1996 | +20.7% |
| 2000 | +17.6% |
| 2004 | +13.0% |
| 2008 | +20.5% |
| 2012 | +17.9% |
| 2016 | +5.5% |
| 2020 | +14.4% |
| 2024 | +10.7% |
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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | D | 62.0%81,919 | 38.0%50,166 | 132,085 |
Registered voters
By party of registration, over time
Registration and the presidential vote track closely here — within 0.5 points.
199,233 registered voters · 2025
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+358 net domestic migration · 2025
Net +2,833 over 2021–2025 · gain loss
Arrivals reported $67,315 in average income, against $88,057 for residents who stayed — 24% lower. (IRS SOI, 2022–23)
The places arrivals came from lean D+13.2 on average — 2.4 points more Democratic-leaning than Southeastern Connecticut Planning Region, CT itself (D+10.7).
Where arrivals came from lean of each source
- Capitol Planning Region, CT907D+20.1
- Lower Connecticut River Valley Planning Region, CT497D+12.8
- Northeastern Connecticut Planning Region, CT497R+9.4
- Washington County, RI367D+15.0
- South Central Connecticut Planning Region, CT302D+11.9
- Providence County, RI165D+14.4
Where departures went households, 2022–23
- Capitol Planning Region, CT866
- Northeastern Connecticut Planning Region, CT454
- Lower Connecticut River Valley Planning Region, CT415
- Washington County, RI264
- South Central Connecticut Planning Region, CT185
- Providence County, RI136
Migration is one input to a place’s political change, not its cause — a shift can also come from residents changing their minds, generational turnover, or turnout. These figures describe the places people moved between; they do not measure how any mover voted.
| Year | Net domestic migration |
|---|---|
| 2021 | +1,303 |
| 2022 | −366 |
| 2023 | +365 |
| 2024 | +1,173 |
| 2025 | +358 |
Southeastern Connecticut Planning Region sits in New England. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 39.0 points in 1964 and a Republican high of 41.0 points in 1896. Between 2020 and 2024 the county moved 3.6 points toward the Republican candidate; the 2024 margin was 10.7 points.
A population of 279,971, a 71% non-Hispanic-white share, and a median household income of $86,586 describe the county. The county's voting pattern over the last decade is most similar to that of Naugatuck Valley Planning Region and South Central Connecticut Planning Region.
The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Browse places by community — income, education, race & ethnicity, language — all community cuts →
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Southeastern Connecticut Planning Region, Connecticut. Akashic. https://akashic.app/county/09180/. Accessed May 20, 2026. License: CC BY 4.0.