Middlesex County, CT ZIP Codes
24 ZIP codes cover all or part of Middlesex County, Connecticut. The Census Bureau counts not published residents in the county, with a median household income of not published and a median home value of not published. Median household income ranges from $79,463 in 06457 to $158,857 in 06422. Its largest communities include Middletown, Portland, Lake Pocotopaug, Clinton and Durham.
Middlesex County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | not published |
| Households | not published |
| Median household income | not published |
| Median home value | not published |
| Median age | not published |
| Median rent | not published |
All 24 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 181,402 |
| Households (sum of ZIP codes) | 76,226 |
| Median household income, range across ZIP codes | $79,463 (06457) to $158,857 (06422) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $106,738 |
| Homeowners | 75.1% |
| Households with kids under 18 | 24.2% |
| Moved in the past year | 9.6% |
| Carrier routes in EDDM2GO's route library | 104 routes, 56,458 homes (18 of 24 ZIP codes) |
Top facts
- Highest median household income in Middlesex County: 06422 ($158,857)
- Most residents: 06457 (46,720 people)
- Highest homeownership: 06419 (96.7% own their home)
- Most households with kids: 06441 (34.9% of households)
- Most new movers: 06459 (44.0% moved in last year)
- Youngest median age: 06459 (20.7 years)
- Highest median home value: 06426 ($729,200)
Every ZIP code in Middlesex County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 06457 | Middletown | 46,720 | 20,385 | $79,463 | $295,300 | 52.9% | 20.6% | 14.1% | — | — | 100% of its land |
| 06415 | Colchester | 16,038 | 6,604 | $123,256 | $366,300 | 77.3% | 28.1% | 9.8% | 12 | 7,297 | 13% of its land |
| 06416 | Cromwell | 14,334 | 5,763 | $110,596 | $325,200 | 82.4% | 28.1% | 12.0% | 13 | 6,852 | 100% of its land |
| 06413 | Clinton | 13,377 | 5,509 | $124,824 | $380,000 | 84.7% | 26.8% | 5.7% | 10 | 6,387 | 100% of its land |
| 06424 | East Hampton | 12,751 | 5,171 | $123,680 | $347,800 | 85.7% | 31.1% | 4.7% | 10 | 5,576 | 100% of its land |
| 06475 | Old Saybrook | 10,575 | 4,672 | $114,333 | $538,200 | 85.3% | 17.5% | 10.3% | 9 | 5,859 | 100% of its land |
| 06480 | Portland | 9,434 | 3,762 | $118,929 | $337,400 | 83.9% | 27.2% | 6.7% | 7 | 4,300 | 100% of its land |
| 06422 | Durham | 7,208 | 2,986 | $158,857 | $424,800 | 93.2% | 34.0% | 6.0% | 5 | 2,793 | 100% of its land |
| 06498 | Westbrook | 6,856 | 3,523 | $91,202 | $434,300 | 75.6% | 11.3% | 7.2% | 5 | 3,789 | 100% of its land |
| 06419 | Killingworth | 6,240 | 2,516 | $140,655 | $446,200 | 96.7% | 21.7% | 3.5% | 6 | 2,679 | 100% of its land |
| 06441 | Higganum | 5,348 | 2,178 | $111,250 | $393,100 | 88.3% | 34.9% | 8.0% | 4 | 2,129 | 100% of its land |
| 06423 | East Haddam | 5,182 | 2,137 | $107,549 | $373,700 | 95.9% | 23.9% | 11.4% | 4 | 2,107 | 100% of its land |
| 06417 | Deep River | 4,458 | 2,010 | $90,253 | $362,200 | 69.2% | 27.6% | 2.8% | 4 | 2,126 | 100% of its land |
| 06412 | Chester | 3,825 | 1,628 | $109,191 | $442,200 | 73.2% | 21.8% | 5.2% | 3 | 1,810 | 100% of its land |
| 06469 | Moodus | 3,311 | 1,263 | $104,888 | $300,000 | 75.2% | 32.2% | 2.9% | 2 | 1,325 | 100% of its land |
| 06426 | Essex | 3,267 | 1,517 | $103,705 | $729,200 | 82.3% | 15.3% | 11.5% | 4 | 1,971 | 100% of its land |
| 06438 | Haddam | 2,887 | 1,036 | $121,429 | $362,500 | 81.1% | 34.7% | 8.3% | 2 | 1,236 | 100% of its land |
| 06442 | Ivoryton | 2,826 | 1,149 | $104,358 | $468,200 | 72.7% | 21.0% | 5.1% | 3 | 1,076 | 100% of its land |
| 06455 | Middlefield | 2,480 | 1,153 | $104,180 | $388,700 | 95.3% | 13.8% | 7.3% | — | — | 100% of its land |
| 06481 | Rockfall | 1,763 | 686 | $84,674 | $360,400 | 71.6% | 27.6% | 4.9% | 1 | 557 | 100% of its land |
| 06459 | Middletown | 1,238 | 5 | — | — | 0.0% | 0.0% | 44.0% | — | — | 100% of its land |
| 06409 | Centerbrook | 701 | 321 | $107,909 | $387,300 | 77.3% | 27.7% | 5.3% | — | — | 100% of its land |
| 06414 | Cobalt | 302 | 86 | $131,090 | $356,000 | 100.0% | 55.8% | 60.6% | — | — | 100% of its land |
| 06456 | Middle Haddam | 281 | 166 | $128,542 | $434,000 | 88.0% | 5.4% | 0.0% | — | — | 100% of its land |
A ZIP code is listed for Middlesex County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Middletown — 47,958 residents · 2 ZIP codes
- Portland — 5,944 residents · 1 ZIP code
- Lake Pocotopaug — 4,875 residents · 1 ZIP code
- Clinton — 3,465 residents · 1 ZIP code
- Durham — 3,347 residents · 1 ZIP code
- East Hampton — 3,347 residents · 1 ZIP code
- Essex Village — 2,705 residents · 1 ZIP code
- Westbrook Center — 2,501 residents · 1 ZIP code
- Deep River Center — 2,407 residents · 1 ZIP code
- Moodus — 2,042 residents · 1 ZIP code
- Chester Center — 2,026 residents · 1 ZIP code
- Higganum — 1,742 residents · 2 ZIP codes
- Old Saybrook Center — 1,659 residents · 1 ZIP code
- Saybrook Manor — 1,358 residents · 1 ZIP code
- Fenwick — 49 residents · 1 ZIP code
Rankings
- Richest ZIP codes in Middlesex County — 20 ZIP codes ranked
- ZIP codes with the highest home values in Middlesex County — 20 ZIP codes ranked
- ZIP codes with the highest homeownership in Middlesex County — 21 ZIP codes ranked
- ZIP codes with the most families with kids in Middlesex County — 21 ZIP codes ranked
- ZIP codes with the most new movers in Middlesex County — 21 ZIP codes ranked
- Youngest ZIP codes in Middlesex County — 21 ZIP codes ranked
- Oldest ZIP codes in Middlesex County — 21 ZIP codes ranked
- Fastest-growing ZIP codes in Middlesex County — 20 ZIP codes ranked
Price a mailing to Middlesex County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Middlesex County, CT?
- 06457, 06415, 06416, 06413, 06424, 06475, 06480, 06422, 06498, 06419, 06441, 06423, 06417, 06412, 06469, 06426, 06438, 06442, 06455, 06481, 06459, 06409, 06414 and 06456. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Middlesex County?
- not published residents in not published households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Middlesex County?
- not published for the county as a whole. Its ZIP codes range from $79,463 (06457) to $158,857 (06422).
- Which Middlesex County ZIP code has the highest median household income?
- 06422, at $158,857, among ZIP codes with at least 1,000 residents. See the full ranking of Middlesex County ZIP codes by income.
- How many carrier routes and mailboxes are in Middlesex County?
- For the 18 of 24 ZIP codes in EDDM2GO's stored route library: 104 carrier routes reaching 56,458 residential and 3,437 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.