New London County, CT Demographics

Population 268,596 · Census ACS 2020–24

Choose a measure to map it.Tap a measure to map it. Swipe the row for more. Arrows show the change since 2006–10.

Median age by neighborhoodHistory and comparison ↓︎
New London County, CT map of median age by neighborhood
Click the map to explore
Younger residents Older residents
Colorblind friendly off

More maps of New London County: Best Neighborhoods · Walk Grade · Household income · Home prices · Race · Politics · Traffic noise · Internet

Jump to median age ↓︎

Population and households in New London County

Household size in New London County

Household size, people per household
PeriodNew London CountyConnecticutU.S.
2006–102.482.572.68
2010–142.492.612.73
2015–192.392.572.71
2020–242.382.552.65
Change−0.09−0.02−0.03
Show on the map ↑︎

New London County is a place of small households, averaging 2.38 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. Household size has dropped from 2.48 in 2006–10, a much bigger shift than nationally. The biggest households, usually families with children, are concentrated in the west.

Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).

Median age in New London County

Median age, years
PeriodNew London CountyConnecticutU.S.
2006–1040.540.037.7
2010–1441.441.038.6
2015–1942.942.039.6
2020–2443.442.140.1
Change+2.9+2.1+2.3
Show on the map ↑︎

The median resident of New London County is 43.4 years old, older than the national median of 40.1. The median age has climbed from 40.5 in 2006–10, mirroring the country. Residents skew youngest in the center and oldest in the southeast.

Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).

Single-parent households in New London County

Single-parent households, % of households
PeriodNew London CountyConnecticutU.S.
2006–1010.8%11.2%12.3%
2010–1411.6%11.6%12.3%
2015–1911.2%10.8%11.6%
2020–2411.4%11.4%11.6%
Change+0.6 pts+0.2 pts−0.6 pts
Show on the map ↑︎

Single parents head nearly one in eight households in New London County (11.4%), close to the national share of 11.6%. The single-parent share has edged up 0.6 points since 2006–10, even as the national share fell.

Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).

Housing in New London County

Renters in New London County

Renters, % of occupied homes
PeriodNew London CountyConnecticutU.S.
2006–1030.3%30.8%33.3%
2010–1432.8%32.7%35.6%
2015–1933.6%33.9%36.0%
2020–2432.4%33.5%34.8%
Change+2.0 pts+2.7 pts+1.5 pts
Show on the map ↑︎

About a third of households in New London County rent their homes (32.4%), close to the national share of 34.8%. About four in ten owners (39.8%) have paid off their mortgages, about the same as nationally. Renting is most common in the south and least common in the west. The renter share is up 2.0 points from 2006–10, mirroring the country.

Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).

Vacant homes in New London County

Vacant homes, % of all homes
PeriodNew London CountyConnecticutU.S.
2006–1011.2%8.8%11.4%
2010–1411.5%9.5%11.4%
2015–1912.0%10.2%11.1%
2020–249.7%7.9%9.6%
Change−1.5 pts−0.9 pts−1.8 pts
Show on the map ↑︎

About as many homes sit empty in New London County as nationally: 9.7%, against 9.6%. The rate is higher than in Connecticut overall (7.9%). Vacancy is down 1.5 points from 2006–10, as it has nationally.

Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).

Age of homes in New London County

Age of homes, median year built
PeriodNew London CountyConnecticutU.S.
2006–10196519631974
2010–14196619641975
2015–19196619641977
2020–24196819671980
Change+4+4+6
Show on the map ↑︎

New London County is a place of older homes: half were built before 1968, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. The median year built has moved up from 1965 in 2006–10, a sign of steady new building. The newest homes are mostly in the northwest, the oldest in the south.

Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).

Rent in New London County

Rent, per month
PeriodNew London CountyConnecticutU.S.
2006–10$1,017$1,127$965
2010–14$1,121$1,218$1,040
2015–19$1,216$1,380$1,213
2020–24$1,478$1,702$1,571
Change+$461+$575+$606
Show on the map ↑︎

A typical rental in New London County costs $1,478 a month with utilities, below the national median of $1,571. Rent has climbed $461 a month since 2006–10, up 45%, a slower climb than the nation's. Rent takes 31.7% of the typical renter's income, just over the 30% mark often used to define affordable rent. Rents run highest in the southwest and lowest in the northeast.

Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).

Education in New London County

Bachelor's degrees in New London County

Bachelor's degrees, % of adults 25+
PeriodNew London CountyConnecticutU.S.
2006–1030.6%35.5%28.4%
2010–1431.5%37.0%29.6%
2015–1933.0%39.2%32.1%
2020–2436.6%42.3%35.6%
Change+6.0 pts+6.8 pts+7.2 pts
Show on the map ↑︎

College degrees are about as common in New London County as nationally: 36.6% of adults 25 and older have a bachelor's or higher, against 35.6%. The share is lower than in Connecticut as a whole (42.3%). The share with a degree has risen 6.0 points since 2006–10, mirroring the country.

Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

High school graduates in New London County

High school graduates, % of adults 25+
PeriodNew London CountyConnecticutU.S.
2006–1089.8%88.1%84.9%
2010–1491.0%89.2%86.1%
2015–1992.4%90.4%87.7%
2020–2493.5%91.2%89.3%
Change+3.7 pts+3.1 pts+4.3 pts
Show on the map ↑︎

High school completion in New London County is above the national rate: 93.5% of adults have a diploma or equivalent, against 89.3%. Since 2006–10, the share with a diploma has risen 3.7 points, as it has nationally.

High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

Jobs in New London County

Unemployment, % of the labor force
PeriodNew London CountyConnecticutU.S.
2006–106.3%7.8%8.1%
2010–148.5%9.7%9.4%
2015–196.0%6.2%5.6%
2020–244.9%5.6%5.4%
Change−1.4 pts−2.1 pts−2.7 pts
Show on the map ↑︎

Unemployment in New London County is close to the national rate: 4.9% of the labor force, against 5.4%. The rate is lower than in Connecticut overall (5.6%). Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current job market.

Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).

New London County compared with nearby counties

CountyHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
New London County2.3843.411.4%32.4%9.7%1968$1,47836.6%93.5%4.9%
Middlesex County2.3545.38.8%25.0%9.5%1970$1,54044.7%95.2%3.9%
Washington County2.3846.07.7%22.5%16.6%1976$1,46153.6%95.8%4.6%
Newport County2.2546.86.9%32.1%14.5%1965$1,76054.1%95.6%5.6%
New Haven County2.5341.713.5%37.6%8.0%1964$1,58438.5%90.6%6.4%
Dukes County2.8650.512.4%17.9%51.7%1981$1,54253.3%96.2%5.5%
Putnam County2.7244.47.9%16.2%8.6%1968$1,96245.3%92.8%4.5%
Orange County3.0937.610.4%32.2%8.9%1976$1,78130.9%88.8%5.3%
Pike County2.5448.48.7%13.0%31.0%1984$1,42630.0%92.9%7.6%
Wayne County2.3549.39.3%19.5%28.3%1977$1,05624.3%92.4%5.8%
Lackawanna County2.4042.612.5%34.6%11.9%1957$1,06730.8%91.6%5.0%

All figures 2020–24.

Counties with similar populations: Hamilton County, TN · St. Tammany Parish, LA · St. Lucie County, FL · St. Louis County, MN · Spartanburg County, SC · Somerset County, NJ · Howard County, MD · Horry County, SC · Henrico County, VA · Sussex County, DE

About these numbers

Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up New London County. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.

No other site shows detail at this level for free. We are able to keep this site free by receiving a small commission from the referring links on this page. Please share or cite this page if you aren’t able to otherwise support our work.