Hay, WA ZIP code

The ZIP code for Hay, Washington is 99136. It is in Whitman County.

99136

Population in these ZIPs: 14
Avg. median income: $87,700population-weighted
Typical home value: —population-weighted
Metro area: Pullman, WA

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Hay, WA ZIP code list

Hay, WA ZIP codes
ZIP code	Population	Median income	Typical home value
99136	14	$87,708	—

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near Hay

Lacrosse 8 mi
Hooper 9 mi
Starbuck 15 mi
Washtucna 20 mi
Benge 20 mi
Endicott 22 mi
Kahlotus 23 mi
Pomeroy 25 mi
Colfax 27 mi
Dayton 28 mi
Prescott 30 mi
Waitsburg 32 mi

Frequently asked questions

What is the ZIP code for Hay, WA?

The ZIP code for Hay, WA is 99136.

What county is Hay, Washington in?

Hay ZIP codes are in Whitman County.