Mackay, ID ZIP code

The ZIP code for Mackay, Idaho is 83251. It is in Custer County.

83251

Population in these ZIPs: 1,443
Avg. median income: $73,500population-weighted
Typical home value: $318,700population-weighted

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Mackay, ID ZIP code list

Mackay, ID ZIP codes
ZIP code	Population	Median income	Typical home value
83251	1,443	$73,482	$318,700

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 Mackay

Sun Valley 26 mi
Moore 29 mi
Hailey 30 mi
Challis 30 mi
Clayton 31 mi
Ketchum 35 mi
Carey 37 mi
May 42 mi
Bellevue 43 mi
Arco 45 mi
Picabo 47 mi
Ellis 47 mi

Frequently asked questions

What is the ZIP code for Mackay, ID?

The ZIP code for Mackay, ID is 83251.

What county is Mackay, Idaho in?

Mackay ZIP codes are in Custer County.