Tumwater Washington ZIP Codes

Tumwater holds a single ZIP code.

Every ZIP code in Tumwater

The complete list of Tumwater, Washington ZIP codes with the county each falls in.
ZIP code	County
98511	Thurston County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Scope every ZIP code recorded for Tumwater. 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 Tumwater ZIP code begins 985. Those first three digits identify the sectional center facility that processes mail for this part of Washington. Statewide that range covers 77 ZIP codes, so Tumwater accounts for 1% of it.

Every Washington ZIP prefix and the region it covers →

Area codes covering Tumwater

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 Tumwater occupies.

These codes are associated with Tumwater through county-level matching, not a per-address guarantee.

Tumwater Washington area codes in full →

Where Tumwater's ZIP codes sit

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

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

Cities near Tumwater

The closest places to Tumwater with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Olympia Washington ZIP codes	3.7 mi	11 ZIP codes
Lacey Washington ZIP codes	6.7 mi	2 ZIP codes
Tenino Washington ZIP codes	9.7 mi	1 ZIP code
Rainier Washington ZIP codes	13 mi	1 ZIP code
Yelm Washington ZIP codes	13 mi	1 ZIP code
Bucoda Washington ZIP codes	14 mi	1 ZIP code
Dupont Washington ZIP codes	15 mi	1 ZIP code
Mccleary Washington ZIP codes	17 mi	1 ZIP code

Straight-line distance between place reference points, not driving distance.