New London County, CT Zip Codes
28 zip codes across 25 cities in New London County, CT
About New London County
New London County, Connecticut (CT) contains 28 unique zip codes spanning 25 cities and communities. Each zip code covers a different area within the county, with varying demographics, income levels, and housing markets.
Browse the complete list below to find detailed population, income, home values, cost of living, and climate data for any zip code in New London County.
Cities in New London County
Advertisement
All Zip Codes in New London County, CT
| Zip Code | City |
|---|---|
| 06249 | Lebanon |
| 06254 | North Franklin |
| 06320 | New London |
| 06330 | Baltic |
| 06333 | East Lyme |
| 06334 | Bozrah |
| 06335 | Gales Ferry |
| 06336 | Gilman |
| 06339 | Ledyard |
| 06340 | Groton |
| 06351 | Jewett City |
| 06355 | Mystic |
| 06357 | Niantic |
| 06359 | North Stonington |
| 06360 | Norwich |
| 06365 | Norwich |
| 06370 | Oakdale |
| 06371 | Old Lyme |
| 06375 | Quaker Hill |
| 06376 | South Lyme |
| 06378 | Pawcatuck |
| 06379 | Pawcatuck |
| 06380 | Taftville |
| 06382 | Uncasville |
| 06384 | Voluntown |
| 06385 | Waterford |
| 06415 | Colchester |
| 06420 | Colchester |
Advertisement
Explore More
Frequently Asked Questions
How many zip codes are in New London County, CT?
New London County, CT has 28 zip codes across 25 cities.
What cities are in New London County?
Cities in New London County include Baltic, Bozrah, Colchester, East Lyme, Gales Ferry, Gilman, Groton, Jewett City, Lebanon, Ledyard, Mystic, New London, Niantic, North Franklin, North Stonington, Norwich, Oakdale, Old Lyme, Pawcatuck, Quaker Hill, South Lyme, Taftville, Uncasville, Voluntown, Waterford.
What state is New London County in?
New London County is located in Connecticut (CT).
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.