Residential delivery area · Connecticut
ZIP Code 06320: New London, CT
ZIP code 06320 is in New London, Connecticut, entirely in New London County (Census 2020 ZIP-county file). About 28,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $59,170 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- New London · its only residential ZIP
- County
- New London County
- Census places
- New London
- Neighborhood
- Neptune Park GeoNames
- House district
- CT-2 119th Congress
- State
- Connecticut
- Time zone
- Eastern
- Land area
- 5.6 sq mi · 4,921 people per sq mi
Where is ZIP code 06320?
06320 centers on 41.349°, -72.102° and covers 5.6 square miles of land plus 1.8 of water. It borders 3 ZIP codes: 06385, 06340, 06375.
The map draws ZIP code areas only. For the streets inside 06320, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 06320 compare with the rest of New London County?
| Measure | 06320 | In New London County | In CT |
|---|---|---|---|
| People (ACS 2020-2024) | 27,703 | 3rd of 33 | 39th of 288 |
| Median household income | $59k | 26th of 26 | 210th of 228 |
| Median home value | $253k | 24th of 26 | 215th of 245 |
Its median household income is higher than in 28% of U.S. residential ZIP codes, and it is denser than 94% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 06320?
The 2020 Census counted 27,398 people in 06320; the ACS, which samples households over 2020-2024, estimates 27,703. Between the 2010 and 2020 censuses its population fell 0.8% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 27,703
- 2020 Census count
- 27,398−0.8% since 2010 (27,617)
- Households
- 11,808
- Median age
- 34.7
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 06320?
Of the 27,703 people the ACS estimates in 06320, 16.7% are under 18 and 15.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (44.6%), then Hispanic or Latino (35.4%).
- Under 1816.7%
- 18 to 6468.4%
- 65 and older15.0%
- White, not Hispanic44.6%
- Hispanic or Latino35.4%
- Black, not Hispanic12.9%
- Other or two or more4.7%
- Asian, not Hispanic2.5%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 06320 earn?
Median household income is $59,170 (ACS 2020-2024), the 26th highest of the 26 ranked ZIP codes in New London County. It is not measurably different from 2015-2019 ($56,860 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $59,170
- Income per person
- $33,704
- Below the poverty line
- 21.5%
- Unemployed (of the labor force)
- 6.5%
- Adults 25+ with a bachelor's degree
- 28.7%
- Adjusted gross income per tax return, 2022
- $51,27712,780 returns; wages 76% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 06320?
FHFA's house price index for 06320, built from repeat sales and appraisals of the same homes, rose 113% from 2015 to 2025 and rose 77% from 2020 to 2025, and moved +7.0% in 2025.
- Median home value (owners' estimate)
- $253,300
- Median gross rent
- $1,341
- Homes owned by their occupants
- 36.1%
- Housing units
- 12,751
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 06320?
637 business establishments had a location in this ZIP code in 2023, 79 fewer than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance108
- Retail trade97
- Accommodation and food services91
- Other services (except public administration)83
- Professional, scientific, and technical services70
- Administrative and support and waste management and remediation services28
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 06320?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 06385 | Waterford | 15,966 | $101k | 3.0 mi |
| 06340 | Groton | 29,863 | $82k | 3.2 mi |
| 06375 | Quaker Hill | 3,670 | $112k | 4.1 mi |
| 06335 | Gales Ferry | 6,307 | $118k | 6.3 mi (near) |
| 06357 | Niantic | 11,332 | $93k | 6.4 mi (near) |
| 06355 | Mystic | 12,173 | $137k | 6.8 mi (near) |
| 06333 | East Lyme | 7,389 | $129k | 7.1 mi (near) |
| 06353 | Montville | 439 | – | 7.6 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.