ZIP Codes of Silver Bow County, MT

Population & People
Population & People
Total Population
35,544
Household Income
Household Income
Median Income
$82,006
Housing
Housing
Total Housing Units
17,522
Business & Economy
Business & Economy
Total Businesses
1,215
Employment
Employment
Employment Rate
58.35%
Education
Education
Bachelor's Degree+
27.92%
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 (3 Standard, 4 PO Box, 1 Unique) [See All]
Area Code:406
Timezone:Mountain (GMT -07:00)
Local Time:2:12:54 PM
Population:35,544 [See All]
FIPS:30093
CBSA:Butte-Silver Bow, MT
Land Area:857 sq mi
Water Area:2 sq mi
Coordinates:45.9283, -112.6249
Quick Link:
https://www.zip-codes.com/county/mt-silver-bow.asp
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Among Montana's 10 most populous counties
#8 of 56 counties with 35,544 residents.

Standout ZIPs in this County


Most Populous
Butte · 34,232 people
96.3% of county total
Highest Income
Ramsay · $107,813 median
1.3× county average
Largest Land Area
Butte · 479.4 sq mi
Spans the most ground
Fastest Growth
Butte · 2.5% (10-yr)
33,406 → 34,232 residents
Most Educated
Butte · 27.6% bachelor's+
6,531 of 23,696 adults 25+

Things worth knowing about Silver Bow County


35,544 residents live across 8 ZIPs covering 857 sq mi, served by 4 distinct USPS-recognized cities.

Population moved from 34,308 to 35,544 from 2014 to 2024 — a +3.6% change. 5 ZIPs gained residents, 0 lost.

The county's wealthiest ZIP 59748 (Ramsay, $107,813 median) and poorest ZIP 59701 (Butte, $60,437) are 8.1 miles apart — a 1.8× income gap across local geography.

Median home values vary 2.2× across this county — from $248,200 in 59701 (Butte) to $550,000 in 59750 (Butte).

Density varies 49× across the county — from 1 people/sq mi in 59727 (Divide) to 71 in 59701 (Butte).

Educational attainment ranges from 27.6% bachelor's+ in 59701 (Butte) to 48.0% in 59727 (Divide) — the breadth of educational profiles across the area.

Within Montana, this is the #8 most populous of 56 counties and ranks #9 for median household income .

Hosts 1 single-entity Unique ZIP: 59707Northwestern Energy .

Weighted by population, the typical household earns about $61,437 across the county — reflecting what a typical resident sees, not a simple ZIP average.

27.9% of adults age 25+ hold a bachelor's degree or higher (6,859 of 24,567 reporting).

3 Standard delivery, 4 PO Box only, 1 single-entity Unique ZIPs serve this county.

Stories about Silver Bow 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
857
square miles
Avg density
41.5
people per sq mi
Population
35,544
across 8 ZIPs
Butte
479.4 sq mi
34,232 residents
Divide
200.2 sq mi
293 residents
Melrose
85.4 sq mi
165 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.

Butte

All ZIP Codes in Silver Bow County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
59701ButteStandard34,232$60,437479.42.5%
59750ButteStandard500$95,19269.759.7%
59748RamsayPO Box354$107,81322.165.4%
59727DivideStandard293$64,583200.216.3%
59743MelrosePO Box16585.434.1%
59702ButtePO Box0.0
59707ButteUnique0.0
59703ButtePO Box0.0

Adjacent & Nearby Counties