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Lower Connecticut River Valley County ZIP Codes

List of ZIP Codes in Lower Connecticut River Valley County

The following table lists ZIP Codes associated with Lower Connecticut River Valley County, Connecticut, based on ZIP Code Tabulation Area (ZCTA) data from the U.S. Census Bureau.


S.N. Zip Code Latitude Longitude City Population Density
1 06371 41.36361 -72.32582 Old Lyme 9,855 70.5
2 06376 41.29461 -72.2528 South Lyme 87 1244.2
3 06409 41.35169 -72.42056 Centerbrook 858 284.1
4 06412 41.40594 -72.48319 Chester 3,786 91.1
5 06413 41.29801 -72.53003 Clinton 13,317 317.4
6 06414 41.57702 -72.55231 Cobalt 407 148.1
7 06416 41.61218 -72.66382 Cromwell 14,301 443.4
8 06417 41.36894 -72.46227 Deep River 4,432 126.6
9 06419 41.37923 -72.57847 Killingworth 6,219 68.0
10 06422 41.46221 -72.68285 Durham 7,182 117.2
11 06423 41.46654 -72.39054 East Haddam 5,163 54.5
12 06424 41.5588 -72.50452 East Hampton 12,401 122.1
13 06426 41.35346 -72.39791 Essex 3,285 225.3
14 06438 41.45516 -72.50701 Haddam 3,012 83.3
15 06439 41.41573 -72.39964 Hadlyme 58 28.5
16 06441 41.46674 -72.58038 Higganum 5,323 84.9
17 06442 41.34261 -72.44429 Ivoryton 2,623 280.8
18 06455 41.51468 -72.71732 Middlefield 2,592 93.2
19 06456 41.541 -72.5483 Middle Haddam 253 73.6
20 06457 41.54759 -72.65484 Middletown 46,690 443.1
21 06459 41.5516 -72.66017 Middletown 956 1109.7
22 06469 41.50757 -72.44924 Moodus 3,125 120.1
23 06475 41.30174 -72.38569 Old Saybrook 10,515 269.6
24 06480 41.59885 -72.5893 Portland 9,421 156.9
25 06481 41.53435 -72.70067 Rockfall 1,644 332.3
26 06498 41.30688 -72.46652 Westbrook 6,832 167.2


About Lower Connecticut River Valley County ZIP Codes

Lower Connecticut River Valley County in Connecticut (CT) is served by approximately 26 ZIP Codes. These codes cover residential neighborhoods, business districts, and rural areas that fall under the county's jurisdiction.

Based on ZIP-level population estimates, the total population covered by these ZIP Codes is around 174,337 people. Population and density values vary from one ZIP Code to another, reflecting the mix of dense urban communities and lower-density suburban or rural zones.

Many of the most significant population centers in Lower Connecticut River Valley County are located in cities such as Middletown, Cromwell, Clinton, East Hampton, Old Saybrook. These cities and towns help define the economic and demographic character of the county.

Most ZIP Codes in Lower Connecticut River Valley County, Connecticut follow the America/New_York time zone.

Connecticut Counties ZIP Codes

  1. Capitol County ZIP Codes
  2. Greater Bridgeport County ZIP Codes
  3. Lower Connecticut River Valley County ZIP Codes
  4. Naugatuck Valley County ZIP Codes
  5. Northeastern Connecticut County ZIP Codes
  6. Northwest Hills County ZIP Codes
  7. South Central Connecticut County ZIP Codes
  8. Southeastern Connecticut County ZIP Codes
  9. Western Connecticut County ZIP Codes