Davenport Washington ZIP Codes

Davenport holds a single ZIP code.

Every ZIP code in Davenport

The complete list of Davenport, Washington ZIP codes with the county each falls in.
ZIP code	County
99122	Lincoln 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Davenport codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Davenport. 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 Davenport ZIP code begins 991. Those first three digits identify the sectional center facility that processes mail for this part of Washington. Statewide that range covers 67 ZIP codes, so Davenport accounts for 1% of it.

Every Washington ZIP prefix and the region it covers →

Area codes covering Davenport

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 Davenport occupies.

509 Area code 509

Davenport Washington area codes in full →

Where Davenport's ZIP codes sit

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

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

Cities near Davenport

The closest places to Davenport with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Reardan Washington ZIP codes	13 mi	1 ZIP code
Harrington Washington ZIP codes	13 mi	1 ZIP code
Creston Washington ZIP codes	19 mi	1 ZIP code
Medical Lake Washington ZIP codes	22 mi	1 ZIP code
Sprague Washington ZIP codes	26 mi	1 ZIP code
Airway Heights Washington ZIP codes	27 mi	1 ZIP code
Wilbur Washington ZIP codes	27 mi	1 ZIP code
Cheney Washington ZIP codes	29 mi	1 ZIP code

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