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ZIP Code 06840, Connecticut

ZIP Code 06840 profile, demographic data, and geographic information.

ZCTA5 06840 is a 5-digit ZIP Code area located in Connecticut. As of official census estimates, it has a reported population of 20,870. The land area covers 22.18 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 20,870 ±30 2020-2024 / Census ACS 5-Year 2024
Median Age 42.1 yrs ±2.5 2020-2024 / Census ACS 5-Year 2024
Total Households 7,153 ±293 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 7,747 ±319
Occupied Housing Units 7,153 ±293
Vacant Housing Units 594 ±200
Median Home Value $1,611,900 ±$74,229
Median Gross Rent $3,401 ±$360
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $250,000+ —
Per Capita Income $143,695 ±$11,337
Poverty Rate 3.7% ±1.2%
Population Below Poverty Level 763 ±259
Unemployment Rate 5.2% ±2.9%
Civilian Labor Force, Employed 9,324 ±542
Broadband Internet Rate 97.7% ±5.5%
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-KG Bridgeport, CT
Regular School Nearby 06-08 NEW ROCHELLE, NY
Regular School Nearby PK-05 BEDFORD HILLS, NY
Regular School Nearby KG-04 PLEASANTVILLE, NY
Regular School Nearby KG-05 BEDFORD, NY
Regular School Nearby 09-12 RYE BROOK, NY
Regular School Nearby 06-08 RYE BROOK, NY
Regular School Nearby KG-03 YORKTOWN HEIGHTS, NY
Regular School Nearby KG-05 RYE BROOK, NY
Regular School Nearby 09-12 ARMONK, NY
Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 10 civic institutions across 2 datasets queried CMS • IPEDS • IMLS
Facility Name Category Relationship Address / Location Contact
University of Connecticut-Stamford
College 7.5 mi away One University Place, Stamford, CT, 06901-2315
2032518400
NEW CANAAN LIBRARY
Library 1.1 mi away 151 MAIN ST., NEW CANAAN, CT, 06840
(203) 594-5000
Fairfield University
College 12.7 mi away 1073 N Benson Rd, Fairfield, CT, 06824-5195
2032544000
WILTON LIBRARY ASSOCIATION
Library 4.2 mi away 137 OLD RIDGEFIELD RD., WILTON, CT, 06897
(203) 762-3950
SUNY at Purchase College
College 13.1 mi away 735 Anderson Hill Rd, Purchase, NY, 10577-1400
9142516000
WEED MEMORIAL BRANCH LIBRARY
Library 4.5 mi away 1143 HOPE STREET, STAMFORD, CT, 06907
(203) 964-1000
Sacred Heart University
College 14.0 mi away 5151 Park Ave, Fairfield, CT, 06825-1000
2033717999
POUND RIDGE LIBRARY DISTRICT
Library 5.2 mi away 271 WESTCHESTER AVENUE, POUND RIDGE, NY, 10576
(914) 764-5085
Manhattanville University
College 14.3 mi away 2900 Purchase St, Purchase, NY, 10577
9146942200
NORWALK PUBLIC LIBRARY
Library 5.3 mi away 1 BELDEN AVE., NORWALK, CT, 06850
(203) 899-2780
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 STAMFORD 5 N, CT US, located 3.5 miles from ZCTA5 06840. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 38.0° 22.2° 30.1° 4.26" 9.1"
February 41.4° 23.1° 32.2° 3.14" 11.9"
March 49.1° 30.4° 39.8° 4.73" 5.9"
April 62.0° 40.3° 51.1° 4.44" 0.5"
May 72.3° 50.0° 61.1° 4.12" 0.0"
June 79.8° 58.5° 69.2° 4.91" 0.0"
July 84.8° 64.4° 74.6° 3.77" 0.0"
August 82.9° 63.1° 73.0° 3.81" 0.0"
September 75.7° 56.2° 66.0° 5.21" 0.0"
October 64.4° 44.6° 54.5° 4.59" 0.0"
November 53.1° 35.1° 44.1° 4.19" 0.8"
December 42.7° 27.3° 35.0° 4.44" 5.8"
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
New Canaan CDP CDP 1.4 mi —
Scotts Corners CDP CDP 3.5 mi —
South Wilton CDP CDP 4.3 mi —
Wilton Center CDP CDP 4.4 mi —
Cannondale CDP CDP 5.5 mi —
Darien Downtown CDP CDP 6.0 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 06840. • 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.