South Central Connecticut Planning Region, Connecticut: Diversifying Metro county. In 2024, voted D+12%. Republican peak: R+46 in 1896.
Key facts
- 2024 presidential margin
- D+12MIT Election Lab
- Political typology
- Diversifying MetroAkashic typology
- Population
- 570,5982024 5-year
- Median household income
- $88,1972024 5-year
- White (non-Hispanic)
- 61.6%2024 5-year
- Black
- 13.9%2024 5-year
- Hispanic / Latino
- 19.5%2024 5-year
- Peak Democratic margin
- D+38 in 1964MIT Election Lab
- Peak Republican margin
- R+46 in 1896MIT Election Lab
- Most similar
- Naugatuck Valley Planning Region, CT · similarity 1.00
2024 results by precinct
2024 precinct map of South Central Connecticut Planning RegionPrecinct-level 2024 presidential results for South Central Connecticut Planning Region, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | +8.5% |
| 1880 | +6.5% |
| 1884 | +8.5% |
| 1888 | +7.4% |
| 1892 | No data |
| 1896 | −45.9% |
| 1900 | −4.5% |
| 1904 | −17.5% |
| 1908 | −17.3% |
| 1912 | +5.7% |
| 1916 | +0.4% |
| 1920 | −25.5% |
| 1924 | −27.3% |
| 1928 | +1.0% |
| 1932 | +4.5% |
| 1936 | +19.9% |
| 1940 | +10.0% |
| 1944 | +6.2% |
| 1948 | +0.3% |
| 1952 | −9.7% |
| 1956 | −26.0% |
| 1960 | +15.9% |
| 1964 | +38.2% |
| 1968 | +9.3% |
| 1972 | −19.3% |
| 1976 | −5.1% |
| 1980 | −11.3% |
| 1984 | −20.1% |
| 1988 | −3.2% |
| 1992 | +5.2% |
| 1996 | +22.0% |
| 2000 | +22.0% |
| 2004 | +10.6% |
| 2008 | +23.2% |
| 2012 | +22.3% |
| 2016 | +12.3% |
| 2020 | +17.4% |
| 2024 | +11.9% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 144,287 | 112,959 | 262,234 | ||
| D | 159,869 | 111,942 | 275,409 | ||
| D | 135,476 | 104,797 | 249,727 | ||
| D | 144,298 | 91,168 | 237,902 | ||
| D | 153,912 | 95,310 | 252,284 | ||
| D | 131,161 | 105,681 | 241,416 | ||
| D | 130,415 | 80,991 | 224,750 | ||
| D | 117,497 | 70,262 | 214,730 | ||
| D | 106,329 | 93,079 | 253,763 | ||
| R | 107,502 | 114,814 | 225,582 | ||
| R | 92,869 | 139,796 | 233,720 | ||
| R | 86,259 | 111,379 | 222,532 | ||
| R | 103,712 | 114,874 | 220,197 | ||
| R | 89,038 | 132,319 | 224,239 | ||
| D | 105,195 | 85,987 | 207,179 | ||
| D | 144,130 | 64,346 | 208,588 | ||
| D | 124,325 | 90,172 | 214,498 | ||
| R | 73,934 | 125,992 | 199,925 | ||
| R | 89,924 | 109,323 | 200,003 | ||
| D | 80,116 | 79,575 | 164,061 | ||
| D | 81,341 | 71,743 | 154,277 | ||
| D | 83,069 | 67,933 | 151,342 | ||
| D | 77,294 | 50,481 | 134,818 | ||
| D | 57,210 | 52,066 | 114,742 | ||
| D | 54,463 | 53,339 | 108,750 | ||
| R | 23,883 | 45,572 | 79,395 | ||
| R | 25,023 | 43,447 | 72,132 | ||
| D | 20,041 | 19,882 | 41,699 | ||
| D | 14,736 | 12,643 | 37,021 | ||
| R | 14,755 | 21,285 | 37,837 | ||
| R | 14,327 | 20,863 | 37,274 | ||
| R | 16,704 | 18,295 | 35,742 | ||
| R | 1,270 | 3,573 | 5,016 | ||
| — | — | — | — | ||
| D | 14,570 | 12,521 | 27,732 | ||
| D | 12,744 | 10,757 | 23,500 | ||
| D | 11,790 | 10,353 | 22,144 | ||
| D | 10,297 | 8,684 | 18,981 |
Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
Italian
19.0%
Irish
14.2%
German
7.1%
English
7.1%
Polish
5.3%
American
3.0%
French
2.4%
African American
11.1%
Multiple ancestry combinations reported; no single grouping above 1%.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
Age distribution by sex
Median age: 40.2 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$88,197
South Central Connecticut Planning Region ranks in the top 10% of US counties.
South Central Connecticut Planning Region$88,197
Connecticut$95,781
United States$80,734
South Central Connecticut Planning Region ranks in the top 10% of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
11.4%
Child poverty is below the national average.
Children under 1814.6%
Working age (18–64)10.7%
Seniors (65+)9.6%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
77.7%
speak English only
Spanish13.4%
Other Indo-European4.4%
Asian & Pacific Islander2.8%
Other languages1.7%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 69.3% of residents not counted as adherents by any reporting body.
South Central Connecticut Planning Region sits in New England. A mid-size metropolitan county growing steadily more diverse, it has trended toward the Democratic party over recent cycles.
The Democratic margin here reached thirty-eight points in 1964. Between 2020 and 2024 the county moved five points toward the Republican candidate; the 2024 margin was twelve points.
A population of 570,598, a 62% non-Hispanic-white share, and a median household income of $88,197 describe the county. The county's voting pattern over the last decade is most similar to that of Naugatuck Valley Planning Region and Middlesex County.
Most similar counties
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
South Central Connecticut Planning Region, Connecticut. Akashic. https://akashic.app/county/09170/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More in Connecticut
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Frequently asked questions
How did South Central Connecticut Planning Region, Connecticut vote in 2024?
In 2024, South Central Connecticut Planning Region, Connecticut voted Democratic by 11.9 points (D+12), carried by the Democratic candidate. Out of 262,234 votes cast, 144,287 went Democratic and 112,959 went Republican.
What is South Central Connecticut Planning Region, Connecticut's political typology?
Akashic places South Central Connecticut Planning Region, Connecticut in the "Diversifying Metro" typology — Mid-size metropolitan counties growing more diverse and trending Democratic. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 24 times, Republican 13 times, and other 0 times.
When did South Central Connecticut Planning Region, Connecticut last vote Republican?
The most recent presidential election in which South Central Connecticut Planning Region, Connecticut voted Republican was 1988.
How many people live in South Central Connecticut Planning Region, Connecticut?
South Central Connecticut Planning Region, Connecticut has a population of 570,598 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in South Central Connecticut Planning Region, Connecticut?
Median household income in South Central Connecticut Planning Region, Connecticut is $88,197 — above the national median of $80,734. The Connecticut state median is $95,781.
What is the political history of South Central Connecticut Planning Region, Connecticut?
Akashic tracks 38 presidential elections in South Central Connecticut Planning Region, Connecticut from 1876 to 2024. Of those, 24 went Democratic and 13 went Republican. The county's typology — "Diversifying Metro" — captures where that record, its demographics, and its recent swing place it among American communities.