Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — STATE/MT/COUNTY/ROSEBUD

Rosebud County, MT ZIP codes

There are 10 ZIP codes in Rosebud County, MT, in 10 towns, from 59004 to 59347. The largest are 59327 (Forsyth), 59347 (Rosebud) and 59004 (Ashland). 2 more cross into it from neighbouring counties: 59301 and 59003.

The county seat is Forsyth.

ZIP codes
10
Partly in it
2 more
Towns
10
County seat
Forsyth
County FIPS
30087
State
Montana
Population
8,165
Median household income
$49,914
Land area
5,008 sq mi

Rosebud County ZIP codes by town

Forsyth (county seat)
59327

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Rosebud County

These ZIP codes lie mostly in a neighbouring county but each cover a twentieth or more of Rosebud County.

Map of Rosebud County ZIP codes

The ZIP codes of Rosebud County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Rosebud County in numbers

About 8,165 people live in Rosebud County, in 3,070 households, the 27th most populous of Montana's 56 counties. The median household income is $49,914 a year, 31% below the Montana median of $72,509 (US: $80,734). The median owner-occupied home is valued at $182,400 (51% below the Montana median), and median gross rent is $672 a month. The median age is 38.0; 20.9% of adults 25 and over hold a bachelor's degree or higher (35.2% across Montana); the average commute takes 16 minutes.

Population8,165Rosebud8,165
Households3,070Rosebud3,070
Median age38.0Rosebud38.0Montana40.4US 38.9
Median household income$49,914Rosebud$49,914Montana$72,509US $80,734
Median home value$182,400Rosebud$182,400Montana$375,800US $332,700
Median gross rent$672Rosebud$672Montana$1,081US $1,413
Bachelor's degree or higher20.9%Rosebud20.9%Montana35.2%US 35.7%
Mean commute15.5 minRosebud15.5 minMontana19.1 minUS 26.4 min
Population density2 / sq miRosebud2 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Rosebud County

Largest towns in Rosebud County
TownZIP codesPopulation
Colstrip 1 2,101
Lame Deer 1 1,872
Forsyth 1 1,728
Ashland 1 959
Melstone 1 80
Rosebud 1 45
Birney 1 17
Ingomar 1 13
Hathaway 1 10
Sumatra 1 3

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Rosebud County.

Not sure you are in Rosebud County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Rosebud County, with figures

ZIP codes in Rosebud County
ZIP City Type Population Median income Median home
59004 Ashland , MT No street area — — —
59012 Birney , MT Standard 44 $56,250 —
59039 Ingomar , MT Standard 13 — —
59043 Lame Deer , MT Standard 2,727 $29,028 $111,000
59054 Melstone , MT Standard 227 $54,250 $218,400
59083 Sumatra , MT Standard 3 — —
59323 Colstrip , MT Standard 2,101 $82,500 $194,900
59327 Forsyth , MT Standard 2,610 $52,639 $233,900
59333 Hathaway , MT Standard 10 — —
59347 Rosebud , MT Standard 323 $57,250 $67,800

Cite this page

zipcodes.pro. “Rosebud County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/mt/county/rosebud

Underlying data is public domain or openly licensed — sources, vintages and licences.