New London County CT Information


New London County Subdivisions

New London County CT Data & Demographics (As of July 1, 2020)


Total Population 271,562 (100%)
Population in Households 260,428 (95.9%)
Population in Families 206,184 (75.9%)
Population in Group Quarters1 11,134 ( 4.1%)
Population Density 408
Diversity Index2 50


Median Household Income $69,430
Average Household Income $93,654
% of Income for Mortgage4 15%
Per Capita Income $37,630
Wealth Index5 113


Total HU (Housing Units) 124,206 (100%)
Owner Occupied HU 70,730 (56.9%)
Renter Occupied HU 36,725 (29.6%)
Vacant Housing Units 16,751 (13.5%)
Median Home Value $248,994
Average Home Value $300,595
Housing Affordability Index3 130


Total Households 107,455
Average Household Size 2.42
Family Households 69,365
Average Family Size 3
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2020 2020-2025
Population -0.09% -0.21%
Households 0.04% -0.18%
Families -0.07% -0.24%
Median Household Income   1.1%
Per Capita Income   1.68%
Owner Occupied HU   -0.12%


New London County CT - Peer Comparisons by Rank and Percentile

The table below compares New London County to the other 8 counties and county equivalents in Connecticut by rank and percentile using July 1, 2020 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 4 63rd
Population Density # 5 50th
Median Household Income # 6 38th
Housing Affordability Index # 3 38th
Per Capita Income # 7 25th
Diversity Index # 4 63rd

Additional comparisons and rankings can be made with a VERY EASY TO USE Connecticut Census Data Comparison Tool.

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