Quincy Washington ZIP Codes

Quincy holds a single ZIP code.

Every ZIP code in Quincy

The complete list of Quincy, Washington ZIP codes with the county each falls in.
ZIP code	County
98848	Grant 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Quincy codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Quincy. 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 Quincy ZIP code begins 988. Those first three digits identify the sectional center facility that processes mail for this part of Washington. Statewide that range covers 46 ZIP codes, so Quincy accounts for 2% of it.

Every Washington ZIP prefix and the region it covers →

Area codes covering Quincy

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

509 Area code 509

Quincy Washington area codes in full →

Where Quincy's ZIP codes sit

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

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

Cities near Quincy

The closest places to Quincy with their own ZIP code list, nearest first.
City	Distance	ZIP codes
George Washington ZIP codes	11 mi	1 ZIP code
Ephrata Washington ZIP codes	16 mi	1 ZIP code
Rock Island Washington ZIP codes	17 mi	1 ZIP code
Soap Lake Washington ZIP codes	20 mi	1 ZIP code
East Wenatchee Washington ZIP codes	24 mi	1 ZIP code
Royal City Washington ZIP codes	26 mi	1 ZIP code
Wenatchee Washington ZIP codes	26 mi	2 ZIP codes
Moses Lake Washington ZIP codes	28 mi	1 ZIP code

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