ZIP Codes of Deer Lodge County, MT

Population & People
Population & People
Total Population
9,842
Household Income
Household Income
Median Income
$58,157
Housing
Housing
Total Housing Units
6,058
Business & Economy
Business & Economy
Total Businesses
315
Employment
Employment
Employment Rate
52.64%
Education
Education
Bachelor's Degree+
24.34%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 2 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:2 ZIP Codes (1 Standard, 1 PO Box, 0 Unique) [See All]
Area Code:406
Timezone:Mountain (GMT -07:00)
Local Time:11:54:11 PM
Population:9,842 [See All]
FIPS:30023
Land Area:662 sq mi
Water Area:8 sq mi
Coordinates:46.1449, -112.9525
Quick Link:
https://www.zip-codes.com/county/mt-deer-lodge.asp
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Montana's #22 most populous county
9,842 residents across 2 ZIPs — #22 of 56 Montana counties.

Standout ZIPs in this County


Most Populous
Anaconda · 9,529 people
96.8% of county total
Highest Income
Anaconda · $58,157 median
1.0× county average
Largest Land Area
Anaconda · 652.3 sq mi
Spans the most ground
Fastest Growth
Anaconda · 6.8% (10-yr)
8,919 → 9,529 residents
Most Educated
Anaconda · 24.7% bachelor's+
1,865 of 7,551 adults 25+

Things worth knowing about Deer Lodge County


9,842 residents live across 2 ZIPs covering 662 sq mi, served by 2 distinct USPS-recognized cities.

Population moved from 9,308 to 9,842 from 2014 to 2024 — a +5.7% change. 1 ZIPs gained residents, 1 lost.

The county's wealthiest ZIP 59711 (Anaconda, $58,157 median) and poorest ZIP 59711 (Anaconda, $58,157) are 0.0 miles apart — a 1.0× income gap across local geography.

Density varies across the county — from 15 people/sq mi in 59711 (Anaconda) to 32 in 59756 (Warm Springs).

Educational attainment ranges from 15.5% bachelor's+ in 59756 (Warm Springs) to 24.7% in 59711 (Anaconda) — the breadth of educational profiles across the area.

Within Montana, this is the #22 most populous of 56 counties and ranks #44 for median household income with the #25 fastest decade growth .

Weighted by population, the typical household earns about $58,157 across the county — reflecting what a typical resident sees, not a simple ZIP average.

24.3% of adults age 25+ hold a bachelor's degree or higher (1,912 of 7,854 reporting).

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

Stories about Deer Lodge 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
662
square miles
Avg density
14.9
people per sq mi
Population
9,842
across 2 ZIPs
Anaconda
652.3 sq mi
9,529 residents
Warm Springs
9.8 sq mi
313 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.

Anaconda

All ZIP Codes in Deer Lodge County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
59711AnacondaStandard9,529$58,157652.36.8%
59756Warm SpringsPO Box3139.8-19.5%

Adjacent & Nearby Counties