ZIP Code 06349 in Groton, CT

Data Last Updated: February 1, 2026
City:Groton, Connecticut
Names to Avoid:
Naval Submarine Base, Navsub Base, Sub Base New London
Planning Region:Southeastern Ct Planning Region
Timezone:Eastern (GMT -05:00)
Local Time:8:13:30 PM
Population:No Population Data
Area Codes:860 / 959
Classification:PO Box
Coordinates:41.3947, -72.0934
Quick Link:
https://www.zip-codes.com/zip-code/06349/zip-code-06349.asp

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In the United States, a county equivalent is a political or administrative subdivision of a state. It has a specific geographic area and some level of governmental authority. The term "county" is used in 47 states. Alaska, Louisiana, and Connecticut have functionally equivalent subdivisions called Boroughs, Parishes, and Planning Regions, respectively. They functionally act like counties by subdividing the state. Read More about Connecticut Planning Regions: Connecticut changes from Counties to Planning Regions, including a ZIP Code to Historical County Crosswalk file.

06349 - Groton, CT

ZIP Code 06349, Groton

Military No Census Data
LocationSoutheastern Ct County, CT
Area0.5 sq mi
Delivery Points63 (6 businesses)
PO Boxes57
Also Known AsSubmarine Base, Sub Base New London, Navsub Base (+1 more)
ZIP CreatedBefore Oct 2004
Key Facts
  • This is a military base ZIP code that exclusively uses PO Boxes for mail delivery, serving the Naval Submarine Base in Groton.
  • The ZIP covers just 0.48 square miles and maintains 57 PO Boxes for base personnel and operations.
  • Streets are named after historic submarines: Cavalla, Shark, Wahoo, and Kete commemorate vessels from the submarine fleet.
  • Six businesses on base employ approximately 220 people, representing exchanges and support services.
  • The ZIP has four alternative names all referencing the submarine base: SUBMARINE BASE, SUB BASE NEW LONDON, NAVSUB BASE, and NAVAL SUBMARINE BASE.
  • One city carrier route serves nine street delivery points for specific base facilities and buildings.

Submarine Heritage in Street Names

The street names tell the story of submarine heritage. Cavalla, Shark, Wahoo, and Kete are all named after historic submarines. Naval Submarine Base itself appears as an address, along with Crystal Lake Road, which provides civilian access to certain facilities. These nine street delivery records don't indicate typical residential mail routes. They represent specific buildings and facilities on base that receive institutional mail through distinct routing.

Military Mail Organization

While the ZIP contains only 57 PO Boxes, this reflects the base's mail organization rather than population. Military bases consolidate mail services differently than civilian communities. Personnel living in base housing typically use PO Boxes rather than street delivery, even though they reside at physical addresses. The base also maintains connections to the broader Groton community through its standard sibling ZIP, which handles civilian areas adjacent to the installation.

Base Operations

This ZIP is classified as P for PO Box only, with one city carrier route serving the internal base addresses. The facility operates with city delivery indicators despite its specialized function. Six businesses on base employ about 220 people according to historical establishment data, likely representing exchanges, services, and support operations that maintain their own PO Boxes for commercial mail separate from command correspondence.

Street Name Patterns

Submarine Names Military Infrastructure

Street names honor historic submarines (Cavalla, Shark, Wahoo, Kete) that served in the U.S. Navy, reflecting the base's mission as the Navy's primary East Coast submarine facility. The presence of Crystal Lake Road indicates civilian infrastructure connections.

Business & Employment Statistics


ZIP Code 06349 supports both business and residential activity. According to the Business Census (2024), there are 20 business establishments, employing about 220 people with an annual payroll of $17,933,000.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:3,601Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:20Source: CBP
1st Quarter Payroll:$4,238,000Source: CBP
Annual Payroll:$17,933,000Source: CBP
# of Employees:220Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 06349 is located in Southeastern Ct Planning Region, Connecticut, within the Norwich-New London-Willimantic, CT Metropolitan Statistical Area (CBSA 35980) and Connecticut's 2nd Congressional District. This Metro area has a population of 274,055 people, about 0.00% of whom live in ZIP Code 06349. It covers 0 sq mi of land and a water area of 0 sq mi.

CBSA Name:Norwich-New London-Willimantic, CTSource: Census
CBSA Number:35980Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:274,055Source: Census
MSA:New London-Norwich, CT-RI MSASource: Census
Land Area:--Source: Census
Water Area:--Source: Census
Congressional District:02Source: USPS
Congressional Land Area:1987.68 sq miSource: Census
PMSA:--Source: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:0934180Source: Census
Place Name:Groton city; ConnecticutSource: Census

Adjacent & Nearby ZIP Codes


06350 | | 06340

Schools in ZIP Code 06349


We could not locate which school district 06349 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Quaker Hill Elementary School 285 Bloomingdale Rd.
Quaker Hill, CT 06375
District: Waterford School DistrictNearby
Charles Barnum Magnet School 68 Briar Hill Rd.
Groton, CT 06340
District: Groton School DistrictNearby
Winthrop Stem Elementary Magnet School 74 Grove Street
New London, CT 06320
District: New London School DistrictNearby
Regional Multicultural Magnet School 1 Bulkeley Place
New London, CT 06320
District: UnknownNearby
Bennie Dover Jackson Middle School 36 Waller St.
New London, CT 06320
District: New London School DistrictNearby
The Williams School 182 Mohegan Ave
New London, CT 06320
District: Private SchoolNearby
Bradley School-New London Regional 26 Maple Ave
Uncasville, CT 06382
District: Private SchoolNearby
Sacred Heart School 50 Sacred Heart Dr
Groton, CT 06340
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 06349


Connecticut College 270 Mohegan Avenue
New London, CT 06320-4196
Type: Post Secondary
United States Coast Guard Academy 15 Mohegan Avenue
New London, CT 06320-4195
Type: Post Secondary
Porter And Chester Institute - New London 520 Bank Street
New London, CT 06320-5548
Type: Post Secondary
Porter And Chester Institute - New London 2 351 North Frontage Road
New London, CT 06320-2628
Type: Post Secondary
Porter And Chester Institute - New London 2 351 North Frontage Road
New London, CT 06320-2628
Type: Post Secondary
Mitchell College 437 Pequot Avenue
New London, CT 06320
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.

  1. U.S. Postal Service [Last Updated: 2/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 2/1/2026], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 2/1/2026], https://nces.ed.gov