ZIP Codes of Wibaux County, MT

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:1 ZIP Codes (1 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:406
Timezone:Mountain (GMT -07:00)
Local Time:11:54:13 PM
Population:1,204 [See All]
FIPS:30109
Land Area:1,025 sq mi
Water Area:1 sq mi
Coordinates:47.0016, -104.3016
Quick Link:
https://www.zip-codes.com/county/mt-wibaux.asp
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Among Montana's 5 fastest-growing counties
#4 statewide, up 22.0% from 2014 to 2024.

Standout ZIPs in this County


Most Populous
Wibaux · 1,204 people
100.0% of county total
Highest Income
Wibaux · $68,250 median
1.0× county average
Largest Land Area
Wibaux · 1,024.7 sq mi
Spans the most ground
Fastest Growth
— growth not calculable
Most Educated
— no education data

Things worth knowing about Wibaux County


1,204 residents live across 1 ZIPs covering 1,025 sq mi, served by 1 distinct USPS-recognized cities.

Population moved from 987 to 1,204 from 2014 to 2024 — a +22.0% change. 1 ZIPs gained residents, 0 lost.

The county's wealthiest ZIP 59353 (Wibaux, $68,250 median) and poorest ZIP 59353 (Wibaux, $68,250) are 0.0 miles apart — a 1.0× income gap across local geography.

Within Montana, 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 $68,250 across the county — reflecting what a typical resident sees, not a simple ZIP average.

22.7% of adults age 25+ hold a bachelor's degree or higher (181 of 799 reporting).

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

Stories about Wibaux 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
1,025
square miles
Avg density
1.2
people per sq mi
Population
1,204
across 1 ZIPs
Wibaux
1,024.7 sq mi
1,204 residents

All ZIP Codes in Wibaux County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
59353WibauxStandard1,204$68,2501,024.722.0%

Adjacent & Nearby Counties