ZIP Codes of Garfield County, MT

Population & People
Population & People
Total Population
1,058
Household Income
Household Income
Median Income
$61,597
Housing
Housing
Total Housing Units
611
Business & Economy
Business & Economy
Total Businesses
26
Employment
Employment
Employment Rate
58.66%
Education
Education
Bachelor's Degree+
20.19%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 5 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 Code:406
Timezone:Mountain (GMT -07:00)
Local Time:2:12:53 PM
Population:1,058 [See All]
FIPS:30033
Land Area:4,798 sq mi
Water Area:169 sq mi
Coordinates:47.2393, -107.2739
Quick Link:
https://www.zip-codes.com/county/mt-garfield.asp
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Montana's #53 most populous county
1,058 residents across 5 ZIPs — #53 of 56 Montana counties.

Standout ZIPs in this County


Most Populous
Jordan · 653 people
61.7% of county total
Highest Income
Jordan · $75,417 median
1.2× county average
Largest Land Area
Jordan · 2,338.6 sq mi
Spans the most ground
Fastest Growth
— growth not calculable
Most Educated
— no education data

Things worth knowing about Garfield County


1,058 residents live across 5 ZIPs covering 4,798 sq mi, served by 5 distinct USPS-recognized cities.

Population moved from 1,056 to 1,058 from 2014 to 2024 — a +0.2% change. 2 ZIPs gained residents, 3 lost.

The county's wealthiest ZIP 59337 (Jordan, $75,417 median) and poorest ZIP 59322 (Cohagen, $50,625) are 30.0 miles apart — a 1.5× income gap across local geography.

Median home values vary 1.6× across this county — from $158,300 in 59337 (Jordan) to $260,700 in 59077 (Sand Springs).

Density varies across the county — from 0 people/sq mi in 59058 (Mosby) to 0 in 59318 (Brusett).

Educational attainment ranges from 13.2% bachelor's+ in 59077 (Sand Springs) to 22.1% in 59322 (Cohagen) — the breadth of educational profiles across the area.

Within Montana, this is the #53 most populous of 56 counties and ranks #41 for median household income .

Weighted by population, the typical household earns about $69,266 across the county — reflecting what a typical resident sees, not a simple ZIP average.

20.2% of adults age 25+ hold a bachelor's degree or higher (150 of 743 reporting).

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

Stories about Garfield 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
4,798
square miles
Avg density
0.2
people per sq mi
Population
1,058
across 5 ZIPs
Jordan
2,338.6 sq mi
653 residents
Mosby
856.1 sq mi
54 residents
Cohagen
665.6 sq mi
132 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.

Jordan

All ZIP Codes in Garfield County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
59337JordanStandard653$75,4172,338.6-11.8%
59318BrusettStandard148$58,750481.780.5%
59322CohagenStandard132$50,625665.6200.0%
59077Sand SpringsStandard71456.0-20.2%
59058MosbyStandard54856.1-46.5%

Adjacent & Nearby Counties