ZIP Codes of Phillips County, MT

Population & People
Population & People
Total Population
4,462
Household Income
Household Income
Median Income
$49,389
Housing
Housing
Total Housing Units
2,321
Business & Economy
Business & Economy
Total Businesses
131
Employment
Employment
Employment Rate
56.15%
Education
Education
Bachelor's Degree+
25.20%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 6 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:6 ZIP Codes (6 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:406
Timezone:Mountain (GMT -07:00)
Local Time:2:12:54 PM
Population:4,462 [See All]
FIPS:30071
Land Area:5,255 sq mi
Water Area:72 sq mi
Coordinates:48.3746, -107.9684
Quick Link:
https://www.zip-codes.com/county/mt-phillips.asp
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Among America's 50 most Hispanic-majority counties
0.3% Hispanic or Latino — #40 nationwide.

Standout ZIPs in this County


Most Populous
Malta · 2,737 people
61.3% of county total
Highest Income
Malta · $57,097 median
1.2× county average
Largest Land Area
Malta · 2,617.5 sq mi
Spans the most ground
Fastest Growth
Malta · -7.8% (10-yr)
2,969 → 2,737 residents
Most Educated
Malta · 27.3% bachelor's+
515 of 1,889 adults 25+

Things worth knowing about Phillips County


4,462 residents live across 6 ZIPs covering 5,255 sq mi, served by 6 distinct USPS-recognized cities.

Population moved from 4,639 to 4,462 from 2014 to 2024 — a -3.8% change. 4 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 59538 (Malta, $57,097 median) and poorest ZIP 59544 (Whitewater, $39,583) are 53.0 miles apart — a 1.4× income gap across local geography.

Median home values vary 4.0× across this county — from $62,100 in 59524 (Dodson) to $250,000 in 59544 (Whitewater).

Density varies across the county — from 0 people/sq mi in 59537 (Loring) to 1 in 59538 (Malta).

Educational attainment ranges from 11.5% bachelor's+ in 59524 (Dodson) to 37.2% in 59537 (Loring) — the breadth of educational profiles across the area.

Within Montana, this is the #38 most populous of 56 counties and ranks #55 for median household income .

Weighted by population, the typical household earns about $54,060 across the county — reflecting what a typical resident sees, not a simple ZIP average.

25.2% of adults age 25+ hold a bachelor's degree or higher (788 of 3,127 reporting).

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

Stories about Phillips 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
5,255
square miles
Avg density
0.8
people per sq mi
Population
4,462
across 6 ZIPs
Malta
2,617.5 sq mi
2,737 residents
Dodson
942.6 sq mi
643 residents
Saco
548.2 sq mi
525 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.

Malta

All ZIP Codes in Phillips County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
59538MaltaStandard2,737$57,0972,617.5-7.8%
59524DodsonStandard643$48,000942.6-22.9%
59261SacoStandard525$53,158548.22.1%
59544WhitewaterStandard207$39,583426.33.5%
59546ZortmanStandard191$49,107214.8297.9%
59537LoringStandard159505.2114.9%

Adjacent & Nearby Counties