U.S. ZIP Code tools

06437 · ZIP Code · Guilford CT

ZIP Code
06437

Guilford, CT

City / locality
Guilford
State
Connecticut
ZIP Code type
Type not provided
Latitude
41.3154
Longitude
-72.6968
Coordinate source
GeoNames Postal
Source
GeoNames Postal
Source year
Inherited source snapshot

Some U.S. place names and coordinates come from GeoNames as geographic references. They are not confirmation of the USPS preferred mailing city.

ZCTAs are Census statistical areas. Their boundaries do not represent every USPS ZIP Code or an exact postal delivery boundary.

ZIP Code map

ZCTAs are Census statistical areas. Their boundaries do not represent every USPS ZIP Code or an exact postal delivery boundary.

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Population & demographics

acs/acs5 · 2024

Population & demographics

ACS figures are five-year statistical estimates for a ZCTA. They do not describe individual addresses; consider the margin of error when comparing values.

Estimated population

22,067People · Margin of error ±72

Median age

51.2Years · Margin of error ±1.9

Median household income

137,615USD · Margin of error ±11,292

Total households

8,856Households · Margin of error ±337

County

Verified ZIP-to-county crosswalk data is not currently available.

Nearby postal codes

ZIP CodeCity / localityStateDistance calculator
06443MadisonCT4.25 Miles / 6.84 km
06471North BranfordCT4.52 Miles / 7.27 km
06405BranfordCT6.39 Miles / 10.29 km
06472NorthfordCT7.08 Miles / 11.40 km
06419KillingworthCT7.51 Miles / 12.09 km
06513New HavenCT8.77 Miles / 14.11 km
06413ClintonCT8.92 Miles / 14.35 km
06473North HavenCT9.57 Miles / 15.41 km
06422DurhamCT10.35 Miles / 16.65 km
06495WallingfordCT10.74 Miles / 17.28 km

Source

GeoNames Postal

Source year: Source vintage not supplied

GeoNames Postal

U.S. Census Bureau Gazetteer

Source year: 2026 Gazetteer

U.S. Census Bureau Gazetteer

U.S. Census Bureau ZCTA cartographic boundaries

Source year: 2020 Census ZCTA cartographic

U.S. Census Bureau ZCTA cartographic boundaries

U.S. Census Bureau ACS 5-year

Source year: 2024 ACS 5-year

U.S. Census Bureau ACS 5-year