ZIP Code 06840

06840 is one of Connecticut's ZIP codes, delivering to addresses in New Canaan, Western Connecticut Planning Region.

City: New Canaan
Planning region: Western Connecticut Planning Region
State: Connecticut
Prefix: 068xx

Where this code sits

06840 is part of the 068xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to New Canaan.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 06840 delivers to without sharing its boundary.

ZIP codes nearest 06840

The ZIP codes whose reference points sit closest to 06840.
ZIP code	Distance	Delivers to
ZIP code 06850	3.6 mi	Norwalk, CT
ZIP code 06903	4.0 mi	Stamford, CT
ZIP code 06907	4.1 mi	Stamford, CT
ZIP code 06897	4.6 mi	Wilton, CT
ZIP code 06856	4.7 mi	Norwalk, CT
ZIP code 06851	4.8 mi	Norwalk, CT
ZIP code 06858	4.9 mi	Norwalk, CT
ZIP code 06905	5.0 mi	Stamford, CT

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 06840, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 06840. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.