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ZIP Code 06423, Connecticut

ZIP Code 06423 profile, demographic data, and geographic information.

ZCTA5 06423 is a 5-digit ZIP Code area located in Connecticut. As of official census estimates, it has a reported population of 5,182. The land area covers 36.57 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 5,182 ±494 2020-2024 / Census ACS 5-Year 2024
Median Age 51.7 yrs ±6.6 2020-2024 / Census ACS 5-Year 2024
Total Households 2,137 ±228 2020-2024 / Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric Estimate / Value Margin of Error
Total Housing Units 2,441 ±255
Occupied Housing Units 2,137 ±228
Vacant Housing Units 304 ±140
Median Home Value $373,700 ±$31,025
Median Gross Rent $1,663 ±$227
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $107,549 ±$18,943
Per Capita Income $61,379 ±$10,322
Poverty Rate 6% ±3.7%
Population Below Poverty Level 308 ±196
Unemployment Rate 4.4% ±2.9%
Civilian Labor Force, Employed 2,582 ±362
Broadband Internet Rate 90% ±4.1%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Education

Listing 10 local institutions (NCES 2024-2025) External reference via K12Guides
Institution Type Grades Location
Regular School Nearby PK-05 Rocky Hill, CT
Regular School Nearby 06-08 Rocky Hill, CT
Regular School Nearby 09-12 Colchester, CT
Regular School Nearby 06-08 Middletown, CT
Regular School Nearby 05-08 New London, CT
Regular School Nearby PK-05 Middletown, CT
Regular School Nearby 05-06 Portland, CT
Regular School Nearby KG-03 Higganum, CT
Regular School Nearby PK-05 New London, CT
Regular School Nearby KG-04 Guilford, CT
Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 10 civic institutions across 2 datasets queried CMS • IPEDS • IMLS
Facility Name Category Relationship Address / Location Contact
Wesleyan University
College 15.3 mi away 45 Wyllys Avenue, Middletown, CT, 06459
8606852000
RATHBUN FREE MEMORIAL LIBRARY
Library 3.7 mi away 36 MAIN ST., EAST HADDAM, CT, 06423
(860) 873-8210
Connecticut College
College 15.6 mi away 270 Mohegan Avenue, New London, CT, 06320-4196
8604471911
LYME PUBLIC LIBRARY
Library 4.1 mi away 482 HAMBURG RD., LYME, CT, 06371
(860) 434-2272
United States Coast Guard Academy
College 16.0 mi away 15 Mohegan Avenue, New London, CT, 06320
8604448444
EAST HADDAM FREE PUBLIC LIBRARY
Library 4.3 mi away 18 PLAINS RD., EAST HADDAM, CT, 06469
(860) 873-8248
Holy Apostles College and Seminary
College 16.8 mi away 33 Prospect Hill Road, Cromwell, CT, 06416-2005
8606323010
CHESTER PUBLIC LIBRARY
Library 5.0 mi away 21 WEST MAIN STREET, CHESTER, CT, 06412
(860) 526-0018
Mitchell College
College 17.7 mi away 437 Pequot Avenue, New London, CT, 06320
8607015000
DEEP RIVER PUBLIC LIBRARY
Library 5.4 mi away 150 MAIN ST., DEEP RIVER, CT, 06417
(860) 526-6039
Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at NORWICH PUBLIC UTILITY PLT, CT US, located 17.6 miles from ZCTA5 06423. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 37.7° 21.2° 29.5° 3.89" 9.0"
February 40.5° 22.9° 31.7° 3.75" 7.1"
March 47.8° 29.4° 38.6° 5.09" 5.0"
April 59.3° 39.1° 49.2° 4.71" 0.8"
May 69.9° 48.9° 59.4° 3.64" 0.0"
June 78.4° 58.5° 68.4° 4.27" 0.0"
July 84.1° 64.8° 74.4° 3.63" 0.0"
August 82.6° 62.7° 72.6° 4.41" 0.0"
September 75.5° 54.9° 65.2° 4.79" 0.0"
October 63.9° 43.6° 53.8° 4.86" 0.0"
November 53.0° 34.3° 43.6° 4.17" 0.3"
December 43.2° 27.0° 35.1° 4.97" 5.6"
Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Nearby Cities & Communities

Listing adjacent communities by spatial proximity (miles) Proximity discovery
Community Name Classification Distance Population
Moodus CDP CDP 3.9 mi —
Chester Center CDP CDP 5.0 mi —
Deep River Center CDP CDP 6.1 mi —
Essex Village CDP CDP 6.9 mi —
Colchester CDP CDP 8.9 mi —
Higganum CDP CDP 8.9 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 06423. • Official Source Dataset →
  2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
  3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
  4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.