PlainZIP

Colchester, CT

Single-footprint Census roll-up for Colchester, CT: 1 USPS ZIP, population 16,857. Open the primary ZIP for household income, housing tenure, and commute from ACS 2023 5-Year Estimates.

U.S. Census Bureau, SimpleMaps US ZIP Code Database, delivery-area ZIP coverage

ACS city ledger plate

Sheet COLCHESTER-CT · Colchester, CT 1 ZIPs · 16,857 pop · #1940/25278 · New London County

INC-TOP · RANK-TOP · BELOW-PEER · BOOK-ONE · OWN-MID · POP-TOWN · SPREAD-UNK · HOME-MID

  • INC-TOP $123,256
  • RANK-TOP #1940/25278
  • BELOW-PEER under Old Lyme
  • BOOK-ONE 1 ZIP
  • OWN-MID 77% owners
  • POP-TOWN 16,857
  • SPREAD-UNK Single-ZIP book
  • HOME-MID $366,300

Nearest income peer: Old Lyme, CT (+ $8,789 income $)

Instrument codes from this city’s ACS household income, national rank, county-peer gap, ZIP book, owner tenure, population scale, intra-city income spread, and home-value band, not a moving recommendation.

Income neighbourhood around Colchester

Lowest/highest poles plus county-sharing cities nearest Colchester on average ZIP median household income. Full ladder: /cities.

median HH income

What this shows County-sharing peers only, not the full US city board. Open a near peer when the gap is small; open the poles when the mosaic is wide.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2026-08-25

National city placement

According to ACS 5-Year Estimates, Colchester, CT sits among US cities with a top-decile household income, on a town-scale population base, across a single-ZIP footprint.

Top 8%
household income vs 25,278 US cities
16,857
city population (Census)
1
USPS ZIP codes covered
$123,256
avg ZIP median income

Income percentile ranks this city's average ZIP median household income against 25,278 US cities with ACS income on at least one ZIP. Scale and ZIP-spread words come from Census population and USPS ZIP coverage.

High-income footprint on only 1 ZIP: the city page and the ZIP page nearly coincide. Headline income $123,256 and home value $366,300 should be read as near-neighborhood numbers ; bachelor's attainment averages 49.8%.

Owner-occupancy sits in a mixed band (77.3%) - check the ZIP page's tenure split before treating Colchester as a pure owner town.

Within Connecticut, Stamford is the closest lower-income city and Salem the closest higher-income city by average ZIP household income. Their 6 and 1 ZIP footprints are the immediate statewide comparison set for Colchester.

Population concentration

One ZIP, 06415, is all of Colchester

There is no split to weigh here: 06415 holds every one of Colchester's 16,857 ACS residents. City-level and ZIP-level numbers on this site are the same number twice, check the ZIP page for the income/tenure/commute breakdown.

Census ZBP business roll-up

Mid-pack ZBP load on Colchester's one ZIP

Citywide ZBP: 307 establishments, 3,257 employees , annual payroll $159,022k (~18 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 06415 (307 units) ; leading NAICS Health care and social assistance (51) · also Retail trade · Construction .

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ZIP Codes in Colchester, CT

These ZIP codes sit in New London County, which covers 31 ZIP codes in all; 1 of them fall in Colchester. See the New London County roll-up →

Colchester sits in the upper half of New London County on income: Norwich, Groton and New London report less, while Mystic and Old Lyme report more. New London marks the far end of that range at $59,170, 52% below Colchester.

ZIP Code Population Median income Establishments Density
06415 16,857 $123,256 307 120
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Colchester roll-ups here are for informational purposes only and do not constitute financial or relocation advice. ACS and Census ZBP figures are estimates; confirm the current table against Census before a money or move decision involving Colchester, .