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/BONEAU

Boneau ZIP codes, Montana

No ZIP code is named for Boneau, MT; addresses there use a neighbouring town's name. The ZIP code covering it is 59521. Its area code is 406.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
277
Area code
406
State
Montana

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

Boneau in numbers

About 277 people live in Boneau, in 74 households. The median household income is $43,056 a year, 41% below the Montana median of $72,509 (US: $80,734). Median gross rent is $364 a month. The median age is 34.4; 10.9% of adults 25 and over hold a bachelor's degree or higher (35.2% across Montana); the average commute takes 16 minutes.

Population277Boneau277
Households74Boneau74
Median age34.4Boneau34.4Montana40.4US 38.9
Median household income$43,056Boneau$43,056Montana$72,509US $80,734
Median gross rent$364Boneau$364Montana$1,081US $1,413
Bachelor's degree or higher10.9%Boneau10.9%Montana35.2%US 35.7%
Mean commute16.3 minBoneau16.3 minMontana19.1 minUS 26.4 min
Population density117 / sq miBoneau117 / sq mi

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

ZIP codes covering Boneau

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

ZIP codes overlapping Boneau
ZIP City Type Population Median income Median home
59521 Box Elder , MT Standard 3,529 $50,288 $103,700

Map of Boneau ZIP codes

59521

The ZIP codes of Boneau, 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 Boneau

The nearest larger towns are Sangrey (339 people, 2.8 mi), Azure (406 people, 3.1 mi) and St. Pierre (394 people, 4.4 mi).

Towns near Boneau
TownPopulationDistance
Havre 9,258 19.3 mi

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

Cite this page

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

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