ZIP Codes of Wheatland County, MT

Population & People
Population & People
Total Population
2,059
Household Income
Household Income
Median Income
$45,167
Housing
Housing
Total Housing Units
1,205
Business & Economy
Business & Economy
Total Businesses
59
Employment
Employment
Employment Rate
49.91%
Education
Education
Bachelor's Degree+
24.53%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 4 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:4 ZIP Codes (3 Standard, 1 PO Box, 0 Unique) [See All]
Area Code:406
Timezone:Mountain (GMT -07:00)
Local Time:2:12:55 PM
Population:2,059 [See All]
FIPS:30107
Land Area:1,547 sq mi
Water Area:5 sq mi
Coordinates:46.4621, -109.7943
Quick Link:
https://www.zip-codes.com/county/mt-wheatland.asp
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Montana's #43 most populous county
2,059 residents across 4 ZIPs — #43 of 56 Montana counties.

Standout ZIPs in this County


Most Populous
Harlowton · 1,530 people
74.3% of county total
Highest Income
Judith Gap · $58,500 median
1.3× county average
Largest Land Area
Harlowton · 564.3 sq mi
Spans the most ground
Fastest Growth
Harlowton · 12.2% (10-yr)
1,364 → 1,530 residents
Most Educated
Harlowton · 21.1% bachelor's+
230 of 1,088 adults 25+

Things worth knowing about Wheatland County


2,059 residents live across 4 ZIPs covering 1,547 sq mi, served by 4 distinct USPS-recognized cities.

Population moved from 1,909 to 2,059 from 2014 to 2024 — a +7.9% change. 3 ZIPs gained residents, 1 lost.

The county's wealthiest ZIP 59453 (Judith Gap, $58,500 median) and poorest ZIP 59078 (Shawmut, $27,000) are 25.8 miles apart — a 2.2× income gap across local geography.

Median home values vary 2.8× across this county — from $65,600 in 59085 (Two Dot) to $186,000 in 59036 (Harlowton).

Density varies 12× across the county — from 0 people/sq mi in 59085 (Two Dot) to 3 in 59036 (Harlowton).

Educational attainment ranges from 12.1% bachelor's+ in 59085 (Two Dot) to 39.2% in 59453 (Judith Gap) — the breadth of educational profiles across the area.

Within Montana, this is the #43 most populous of 56 counties and ranks #56 for median household income with the #21 fastest decade growth .

Weighted by population, the typical household earns about $50,085 across the county — reflecting what a typical resident sees, not a simple ZIP average.

24.5% of adults age 25+ hold a bachelor's degree or higher (362 of 1,476 reporting).

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

Stories about Wheatland 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
1,547
square miles
Avg density
1.3
people per sq mi
Population
2,059
across 4 ZIPs
Harlowton
564.3 sq mi
1,530 residents
Two Dot
356.5 sq mi
83 residents
Judith Gap
329.9 sq mi
331 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.

Harlowton

All ZIP Codes in Wheatland County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
59036HarlowtonPO Box1,530$50,000564.312.2%
59453Judith GapStandard331$58,500329.911.4%
59078ShawmutStandard115$27,000296.49.5%
59085Two DotStandard83356.5-42.0%

Adjacent & Nearby Counties