Washington County, ID Demographics & ZIP Codes

Washington County, Idaho demographics and median household income by ZIP code — 3 ZIP codes — population 10,866 — avg. income $62,622 — avg. home value $267,500. Compare income, housing, and ZIP-level data on US5.

ZIP codes

Population

10,866

Median household income (avg.)

$62,622

83% of U.S. median

Average home value

$267,500

77% of U.S. median

Average rent

$657

56% of U.S. median

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Washington County demographics

Washington County, Idaho covers 3 ZIP codes, with a combined ZIP-area population of about 10,866.

Median household income in Washington County

The average median household income across ZIP codes in Washington County, Idaho is about $62,622 — about 11% below the ID ZIP average ($70,279), and about 17% below the U.S. median ($75,149).

Among ZIPs with income data, 83645 (Midvale) is near the top at about $73,333, while 83672 (Weiser) is near the bottom at about $52,450.

Housing in Washington County

For housing in Washington County, Idaho, the average median home value is about $267,500 and the average median rent is about $657.

The most populous ZIP is 83672 (Weiser) with about 8,929 residents. Use the table below to compare ZIP codes across the county.

ZIP codes in Washington County

Sort by population, income, or home value. Click a column header to toggle ascending / descending.

ZIP	City	County	State	Population ↓	Income	Home value
83672	Weiser	Washington County	ID	8,929	$52,450	$244,300
83610	Cambridge	Washington County	ID	1,050	$62,083	$261,700
83645	Midvale	Washington County	ID	887	$73,333	$296,500

Frequently asked questions

What are the demographics of Washington County?

Washington County, Idaho has a combined ZIP-area population of about 10,866 across 3 ZIP codes. Browse the ZIP table for population, income, and housing by code.

What is the median household income in Washington County?

The average median household income across ZIP codes in Washington County, Idaho is about $62,622, about 11% below the state ZIP average ($70,279), and about 17% below the U.S. median ($75,149). Average median home value is about $267,500. Among ZIPs with data, 83645 (Midvale) is near the top ($73,333) and 83672 (Weiser) is near the bottom ($52,450).

How many ZIP codes are in Washington County?

Washington County, Idaho includes 3 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.

Where can I find ZIP code demographics for Washington County?

This page lists ZIP codes in Washington County, Idaho with population, median household income, and home value. Select a ZIP for a full demographics profile.