ZIP Codes of Meagher County, MT

Population & People
Population & People
Total Population
2,058
Household Income
Household Income
Median Income
$55,808
Housing
Housing
Total Housing Units
1,443
Business & Economy
Business & Economy
Total Businesses
91
Employment
Employment
Employment Rate
62.38%
Education
Education
Bachelor's Degree+
29.36%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 3 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:3 ZIP Codes (2 Standard, 1 PO Box, 0 Unique) [See All]
Area Code:406
Timezone:Mountain (GMT -07:00)
Local Time:2:12:53 PM
Population:2,058 [See All]
FIPS:30059
Land Area:2,258 sq mi
Water Area:3 sq mi
Coordinates:46.4526, -110.8264
Quick Link:
https://www.zip-codes.com/county/mt-meagher.asp
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Notable population decline
Lost 10.2% of residents since 2014.
Among Montana's 5 oldest counties
Median age 56.0.

Standout ZIPs in this County


Most Populous
White Sulphur Springs · 1,611 people
78.3% of county total
Highest Income
White Sulphur Springs · $77,241 median
1.4× county average
Largest Land Area
White Sulphur Springs · 1,276.2 sq mi
Spans the most ground
Fastest Growth
White Sulphur Springs · -7.7% (10-yr)
1,745 → 1,611 residents
Most Educated
White Sulphur Springs · 25.1% bachelor's+
312 of 1,243 adults 25+

Things worth knowing about Meagher County


2,058 residents live across 3 ZIPs covering 2,258 sq mi, served by 3 distinct USPS-recognized cities.

Population moved from 2,292 to 2,058 from 2014 to 2024 — a -10.2% change. 1 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 59645 (White Sulphur Springs, $77,241 median) and poorest ZIP 59053 (Martinsdale, $44,038) are 23.4 miles apart — a 1.8× income gap across local geography.

Median home values vary 1.5× across this county — from $187,100 in 59053 (Martinsdale) to $287,800 in 59645 (White Sulphur Springs).

Density varies across the county — from 1 people/sq mi in 59053 (Martinsdale) to 1 in 59645 (White Sulphur Springs).

Educational attainment ranges from 25.1% bachelor's+ in 59645 (White Sulphur Springs) to 44.1% in 59053 (Martinsdale) — the breadth of educational profiles across the area.

Within Montana, this is the #44 most populous of 56 counties and ranks #49 for median household income .

Weighted by population, the typical household earns about $70,065 across the county — reflecting what a typical resident sees, not a simple ZIP average.

29.4% of adults age 25+ hold a bachelor's degree or higher (473 of 1,611 reporting).

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

Stories about Meagher 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
2,258
square miles
Avg density
0.9
people per sq mi
Population
2,058
across 3 ZIPs
White Sulphur Springs
1,276.2 sq mi
1,611 residents
Martinsdale
807.3 sq mi
412 residents
Ringling
174.0 sq mi
35 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.

White Sulphur Springs

Population decline

Meagher County lost 10.2% of residents between 2014 and 2024. ZIPs that shed the largest share:

Martinsdale
-21.8%
527 → 412 residents

All ZIP Codes in Meagher County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
59645White Sulphur SpringsStandard1,611$77,2411,276.2-7.7%
59053MartinsdaleStandard412$44,038807.3-21.8%
59642RinglingPO Box35$46,146174.075.0%

Adjacent & Nearby Counties