Matanuska-Susitna Borough ZIP Codes

Matanuska-Susitna Borough is a borough of Alaska.

ZIP codes: 12
Cities & towns: 9
Area codes: 1
Land area: 24,707 sq mi

Every ZIP code in Matanuska-Susitna Borough

996xx

The complete list of Matanuska-Susitna Borough, AK ZIP codes with the city each one delivers to.
ZIP code	City
99623	Wasilla
99629	Wasilla
99645	Palmer
99652	Big Lake
99654	Wasilla
99667	Skwentna
99674	Sutton
99676	Talkeetna
99683	Trapper Creek
99687	Wasilla
99688	Willow
99694	Houston

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Matanuska-Susitna Borough codes above are listed without a column we would have to invent.

Cities and towns in Matanuska-Susitna Borough

A further 6 places in Matanuska-Susitna Borough appear in the postal source without a page of its own; their codes are in the table above and each one links to its own page.

Area codes covering Matanuska-Susitna Borough

Telephone and postal boundaries are drawn by different bodies, so these codes overlap the borough without matching its edges.

907 Area code 907

Where Matanuska-Susitna Borough's ZIP codes sit

Each point is the reference point of one Matanuska-Susitna Borough ZIP code, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.

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

Scope every ZIP code recorded in Matanuska-Susitna Borough. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated 16 July 2026. The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.