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 — CITY/MT/ROCKVALE

Rockvale ZIP codes, Montana

No ZIP code is named for Rockvale, MT; addresses there use a neighbouring town's name. The ZIP code covering it is 59041. Its area code is 406.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
350
Area code
406
State
Montana

NANPA lists no telephone rate centre for Rockvale itself, so these are the area codes of the nearest one, Joliet (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Rockvale in numbers

About 350 people live in Rockvale, in 102 households. The median age is 55.8; 14.3% of adults 25 and over hold a bachelor's degree or higher (35.2% across Montana); the average commute takes 17 minutes.

Population350Rockvale350
Households102Rockvale102
Median age55.8Rockvale55.8Montana40.4US 38.9
Bachelor's degree or higher14.3%Rockvale14.3%Montana35.2%US 35.7%
Mean commute17.4 minRockvale17.4 minMontana19.1 minUS 26.4 min
Population density211 / sq miRockvale211 / sq mi

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

ZIP codes covering Rockvale

These ZIP codes cover part of Rockvale but are addressed as somewhere else.

ZIP codes overlapping Rockvale
ZIP City Type Population Median income Median home
59041 Joliet , MT Standard 2,258 $80,500 $411,700

Map of Rockvale ZIP codes

The ZIP codes of Rockvale, MT, 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.

Towns near Rockvale

The nearest larger towns are Joliet (613 people, 5.4 mi), Park City (764 people, 8.2 mi) and Fromberg (438 people, 8.8 mi).

Towns near Rockvale
TownPopulationDistance
Laurel 7,215 11.7 mi
Billings 119,434 24.2 mi
Red Lodge 2,502 29.0 mi

More nearby: every ZIP code in Carbon County · Montana ZIP codes

Cite this page

zipcodes.pro. “Rockvale, MT ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/mt/rockvale

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