ZIP Codes of Beaverhead County, MT

Population & People
Population & People
Total Population
9,733
Household Income
Household Income
Median Income
$65,169
Housing
Housing
Total Housing Units
5,037
Business & Economy
Business & Economy
Total Businesses
399
Employment
Employment
Employment Rate
55.76%
Education
Education
Bachelor's Degree+
37.98%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 8 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:8 ZIP Codes (7 Standard, 1 PO Box, 0 Unique) [See All]
Area Code:406
Timezone:Mountain (GMT -07:00)
Local Time:2:12:52 PM
Population:9,733 [See All]
FIPS:30001
Land Area:6,109 sq mi
Water Area:31 sq mi
Coordinates:45.2474, -112.9460
Quick Link:
https://www.zip-codes.com/county/mt-beaverhead.asp
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Montana's largest county by area
Spans 6,109 sq mi — the largest of 56 counties.
Among Montana's 5 most-educated counties
38.0% with bachelor's+ (#5 statewide).
Striking education divide
Bachelor's share spans 22.9% to 54.9% — a 32-point gap.

Standout ZIPs in this County


Most Populous
Dillon · 8,343 people
85.7% of county total
Highest Income
Jackson · $76,346 median
1.2× county average
Largest Land Area
Dillon · 2,197.3 sq mi
Spans the most ground
Fastest Growth
Dillon · 5.4% (10-yr)
7,914 → 8,343 residents
Most Educated
Dillon · 38.9% bachelor's+
2,226 of 5,722 adults 25+

Things worth knowing about Beaverhead County


9,733 residents live across 8 ZIPs covering 6,109 sq mi, served by 8 distinct USPS-recognized cities.

Population moved from 9,266 to 9,733 from 2014 to 2024 — a +5.0% change. 5 ZIPs gained residents, 3 lost.

The county's wealthiest ZIP 59736 (Jackson, $76,346 median) and poorest ZIP 59739 (Lima, $54,215) are 95.5 miles apart — a 1.4× income gap across local geography.

Median home values vary 2.2× across this county — from $194,000 in 59739 (Lima) to $425,000 in 59724 (Dell).

Density varies 15× across the county — from 0 people/sq mi in 59724 (Dell) to 4 in 59725 (Dillon).

Educational attainment ranges from 22.9% bachelor's+ in 59739 (Lima) to 54.9% in 59736 (Jackson) — the breadth of educational profiles across the area.

Within Montana, this is the #23 most populous of 56 counties and ranks #31 for median household income with the #27 fastest decade growth .

Weighted by population, the typical household earns about $61,735 across the county — reflecting what a typical resident sees, not a simple ZIP average.

38.0% of adults age 25+ hold a bachelor's degree or higher (2,607 of 6,865 reporting).

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

Stories about Beaverhead 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
6,109
square miles
Avg density
1.6
people per sq mi
Population
9,733
across 8 ZIPs
Dillon
2,197.3 sq mi
8,343 residents
Lima
1,111.7 sq mi
299 residents
Wisdom
823.0 sq mi
312 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.

Dillon

All ZIP Codes in Beaverhead County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
59725DillonStandard8,343$61,3352,197.35.4%
59761WisdomStandard312$62,083823.014.3%
59739LimaStandard299$54,2151,111.7-13.6%
59762Wise RiverStandard231$61,125712.1-22.2%
59732GlenStandard195$73,125322.8103.1%
59736JacksonStandard155$76,346383.37.6%
59746PolarisStandard111$73,750221.752.1%
59724DellPO Box87$59,375337.4-29.3%

Adjacent & Nearby Counties