Darien Connecticut ZIP Codes

Darien holds a single ZIP code.

Every ZIP code in Darien

The complete list of Darien, Connecticut ZIP codes with the planning region each falls in.
ZIP code	Planning region
06820	Western Connecticut Planning Region

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Darien codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Darien. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Darien ZIP code begins 068. Those first three digits identify the sectional center facility that processes mail for this part of Connecticut. Statewide that range covers 44 ZIP codes, so Darien accounts for 2% of it.

Every Connecticut ZIP prefix and the region it covers →

Area codes covering Darien

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Darien occupies.

Darien Connecticut area codes in full →

Where Darien's ZIP codes sit

Each point is one Darien ZIP code, plotted from its record coordinates.

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

Cities near Darien

The closest places to Darien with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Stamford Connecticut ZIP codes	3.2 mi	17 ZIP codes
Norwalk Connecticut ZIP codes	3.6 mi	10 ZIP codes
Greenwich Connecticut ZIP codes	8.1 mi	3 ZIP codes
Southport Connecticut ZIP codes	11 mi	1 ZIP code
Ridgefield Connecticut ZIP codes	13 mi	2 ZIP codes
Fairfield Connecticut ZIP codes	14 mi	3 ZIP codes
Redding Connecticut ZIP codes	14 mi	1 ZIP code
Bridgeport Connecticut ZIP codes	17 mi	10 ZIP codes

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