ZIP Codes of Golden Valley County, ND

Population & People
Population & People
Total Population
1,204
Household Income
Household Income
Median Income
$68,250
Housing
Housing
Total Housing Units
608
Business & Economy
Business & Economy
Total Businesses
30
Employment
Employment
Employment Rate
60.94%
Education
Education
Bachelor's Degree+
22.65%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 1 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:3 ZIP Codes (3 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:406
Timezone:Mountain (GMT -07:00)
Local Time:11:54:20 PM
Population:1,204 [See All]
FIPS:30109
Land Area:1,241 sq mi
Water Area:1 sq mi
Coordinates:47.0016, -104.3016
Quick Link:
https://www.zip-codes.com/county/nd-golden-valley.asp
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Among North Dakota's 5 fastest-growing counties
#4 statewide, up 22.0% from 2014 to 2024.

Standout ZIPs in this County


Most Populous
Beach · 1,161 people
69.4% of county total
Highest Income
Sentinel Butte · $89,583 median
1.2× county average
Largest Land Area
Beach · 562.5 sq mi
Spans the most ground
Fastest Growth
Beach · -3.7% (10-yr)
1,206 → 1,161 residents
Most Educated
— no education data

Things worth knowing about Golden Valley County


1,673 residents live across 3 ZIPs covering 1,241 sq mi, served by 3 distinct USPS-recognized cities.

Population moved from 1,816 to 1,673 from 2014 to 2024 — a -7.9% change. 1 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 58654 (Sentinel Butte, $89,583 median) and poorest ZIP 58632 (Golva, $60,000) are 21.7 miles apart — a 1.5× income gap across local geography.

Median home values vary 1.1× across this county — from $113,900 in 58654 (Sentinel Butte) to $124,800 in 58621 (Beach).

Density varies across the county — from 0 people/sq mi in 58654 (Sentinel Butte) to 2 in 58621 (Beach).

Educational attainment ranges from 14.0% bachelor's+ in 58632 (Golva) to 41.4% in 58654 (Sentinel Butte) — the breadth of educational profiles across the area.

Within North Dakota, this is the #51 most populous of 56 counties and ranks #23 for median household income with the #4 fastest decade growth .

Weighted by population, the typical household earns about $69,172 across the county — reflecting what a typical resident sees, not a simple ZIP average.

23.2% of adults age 25+ hold a bachelor's degree or higher (284 of 1,225 reporting).

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

Stories about Golden Valley 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
1,241
square miles
Avg density
1.3
people per sq mi
Population
1,673
across 3 ZIPs
Beach
562.5 sq mi
1,161 residents
Sentinel Butte
528.9 sq mi
244 residents
Golva
149.4 sq mi
268 residents

Single-ZIP anchor

One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.

Beach

All ZIP Codes in Golden Valley County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
58621BeachStandard1,161$67,000562.5-3.7%
58632GolvaStandard268$60,000149.49.8%
58654Sentinel ButteStandard244$89,583528.9-33.3%

Adjacent & Nearby Counties