ZIP Code Tabulation Area · Connecticut

ZIP Code 06420: New London County, CT

ZIP Code 06420 (New London County, Connecticut) has an estimated 4,368 residents in 1,811 households. The median household income is $123,425, the median home value is $405,800 and the median gross rent is $1,440/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated

Some estimates have a large margin of error. One figure for this ZIP (owner-occupied) is marked with *. ACS figures come from a sample, and small areas have fewer responses, so treat these numbers as rough ranges.

Total population

4,368

Margin of error ±82

Median household income

$123,425

Margin of error ±$7,461

Median home value

$405,800

Margin of error ±$31,979

Median gross rent

$1,440/mo

Margin of error ±$150

Median age

41.6 yrs

Margin of error ±5.4 yrs

Mean travel time to work

31.6 min

Margin of error ±8.2 min

How ZIP 06420 compares with Connecticut and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 0642041.6 yrsConnecticut41.1 yrsUnited States38.9 yrs

Median household income

ZIP 06420$123,425Connecticut$95,781United States$80,734

Per capita income

ZIP 06420$61,743Connecticut$55,915United States$44,673

Poverty rate

ZIP 064206.1%Connecticut10.0%United States12.5%

Unemployment rate

ZIP 064203.1%Connecticut5.6%United States5.2%

Bachelor's degree or higher

ZIP 0642050.5%Connecticut42.5%United States35.7%

Median home value

ZIP 06420$405,800Connecticut$366,900United States$332,700

Median gross rent

ZIP 06420$1,440/moConnecticut$1,488/moUnited States$1,413/mo

Owner-occupied homes

ZIP 0642086.4%*Connecticut66.5%United States65.2%

Mean travel time to work

ZIP 0642031.6 minConnecticut26.5 minUnited States26.4 min

Worked from home

ZIP 0642019.1%Connecticut16.0%United States15.1%

All figures for ZIP 06420

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 06420 — ACS 2020–2024 5-year estimates
MeasureZIP 06420Margin of errorConnecticutUnited States
Total population4,368±823,624,508334,922,499
Median age41.6 yrs±5.4 yrs41.1 yrs38.9 yrs
Households1,811±1631,434,007129,227,496
Median household income$123,425±$7,461$95,781$80,734
Per capita income$61,743±$8,766$55,915$44,673
Poverty rate6.1%±3.8 pts10.0%12.5%
Unemployment rate3.1%±1.6 pts5.6%5.2%
Bachelor's degree or higher50.5%±7.1 pts42.5%35.7%
Median home value$405,800±$31,979$366,900$332,700
Median gross rent$1,440/mo±$150$1,488/mo$1,413/mo
Owner-occupied homes86.4%*±10.6 pts66.5%65.2%
Mean travel time to work31.6 min±8.2 min26.5 min26.4 min
Worked from home19.1%±9.3 pts16.0%15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 06420
GroupZIP 06420ConnecticutUnited States
White alone, not Hispanic or Latino86.2%61.9%57.4%
Black or African American alone, not Hispanic or Latino0.5%9.8%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.0%0.1%0.5%
Asian alone, not Hispanic or Latino1.5%4.7%5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino0.0%0.0%0.2%
Some other race alone, not Hispanic or Latino2.4%0.9%0.6%
Two or more races, not Hispanic or Latino3.1%4.3%4.3%
Hispanic or Latino (of any race)6.3%18.3%19.3%

Where ZIP 06420 is

State
Connecticut
Main county
New London County— also overlaps Middlesex County
Land area
29.55 sq mi· about 148 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in New London County

06336 New London County, CT06338 Mashantucket, CT06339 New London County, CT06340 Conning Towers-Nautilus Park, CT06350 New London County, CT06351 New London County, CT06353 Oxoboxo River, CT06355 Old Mystic, CT06357 New London County, CT06359 New London County, CT06360 Norwich, CT06365 New London County, CT06370 New London County, CT06371 New London County, CT06375 New London County, CT06376 New London County, CT06378 New London County, CT06379 Pawcatuck, CT06380 Norwich, CT06382 Oxoboxo River, CT06384 New London County, CT06385 New London County, CT06415 New London County, CT06439 New London County, CT

See every ZIP code in Connecticut, or compare ZIP 06420 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

  • U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
  • U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
  • Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.