ZIP Codes of Owyhee County, ID

Population & People
Population & People
Total Population
645
Household Income
Household Income
Median Income
$73,317
Housing
Housing
Total Housing Units
332
Business & Economy
Business & Economy
Total Businesses
249
Employment
Employment
Employment Rate
57.08%
Education
Education
Bachelor's Degree+
24.50%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 1 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:5 ZIP Codes (5 Standard, 0 PO Box, 0 Unique) [See All]
Area Codes:208 / 986
Timezone:Mountain (GMT -07:00)
Local Time:2:11:58 PM
Population:645 [See All]
FIPS:16073
CBSA:Boise City, ID
Land Area:4,152 sq mi
Water Area:18 sq mi
Coordinates:42.7844, -117.6009
Quick Link:
https://www.zip-codes.com/county/id-owyhee.asp
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Idaho's most renter-heavy county
48.9% of homes are renter-occupied.

Standout ZIPs in this County


Most Populous
Homedale · 5,006 people
46.7% of county total
Highest Income
Homedale · $68,854 median
1.2× county average
Largest Land Area
Murphy · 1,938.0 sq mi
Spans the most ground
Fastest Growth
Grand View · 16.2% (10-yr)
1,161 → 1,349 residents
Most Educated
Marsing · 13.7% bachelor's+
300 of 2,192 adults 25+

Things worth knowing about Owyhee County


10,713 residents live across 5 ZIPs covering 4,152 sq mi, served by 5 distinct USPS-recognized cities.

Population moved from 10,008 to 10,713 from 2014 to 2024 — a +7.0% change. 3 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 83628 (Homedale, $68,854 median) and poorest ZIP 83624 (Grand View, $44,583) are 63.4 miles apart — a 1.5× income gap across local geography.

Median home values vary 1.7× across this county — from $273,400 in 83624 (Grand View) to $461,900 in 83639 (Marsing).

Density varies 343× across the county — from 0 people/sq mi in 83650 (Murphy) to 82 in 83628 (Homedale).

Educational attainment ranges from 7.7% bachelor's+ in 83624 (Grand View) to 20.8% in 83650 (Murphy) — the breadth of educational profiles across the area.

Within Idaho, this is the #37 most populous of 38 counties and ranks #21 for median household income with the #21 fastest decade growth .

Weighted by population, the typical household earns about $62,887 across the county — reflecting what a typical resident sees, not a simple ZIP average.

12.0% of adults age 25+ hold a bachelor's degree or higher (859 of 7,170 reporting).

5 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Owyhee County


Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
4,152
square miles
Avg density
2.6
people per sq mi
Population
10,713
across 5 ZIPs
Murphy
1,938.0 sq mi
464 residents
Bruneau
1,495.7 sq mi
583 residents
Grand View
472.2 sq mi
1,349 residents

All ZIP Codes in Owyhee County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
83628HomedaleStandard5,006$68,85461.012.6%
83639MarsingStandard3,311$64,042185.28.9%
83624Grand ViewStandard1,349$44,583472.216.2%
83604BruneauStandard583$51,8101,495.7-24.7%
83650MurphyStandard464$57,3961,938.0-20.7%

Adjacent & Nearby Counties