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/FORT-PECK

Fort Peck ZIP code, Montana

The ZIP code for Fort Peck, MT is 59223, and its area code is 406.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
280
Area code
406
State
Montana

Mail addressed to Fort Peck uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Fort Peck in numbers

About 280 people live in Fort Peck, in 108 households. The median household income is $90,833 a year, 25% above the Montana median of $72,509 (US: $80,734). The median owner-occupied home is valued at $273,900 (27% below the Montana median). The median age is 48.8; 45.3% of adults 25 and over hold a bachelor's degree or higher (35.2% across Montana); the average commute takes 26 minutes.

Population280Fort Peck280
Households108Fort Peck108
Median age48.8Fort Peck48.8Montana40.4US 38.9
Median household income$90,833Fort Peck$90,833Montana$72,509US $80,734
Median home value$273,900Fort Peck$273,900Montana$375,800US $332,700
Bachelor's degree or higher45.3%Fort Peck45.3%Montana35.2%US 35.7%
Mean commute26.3 minFort Peck26.3 minMontana19.1 minUS 26.4 min
Population density314 / sq miFort Peck314 / sq mi

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

ZIP codes addressed as Fort Peck

ZIP codes with the USPS city name Fort Peck
ZIP City Type Population Median income Median home
59223 Fort Peck , MT Standard 19 — $445,500

Other ZIP codes overlapping Fort Peck

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

ZIP codes overlapping Fort Peck
ZIP City Type Population Median income Median home
59248 Nashua , MT Standard 1,023 $89,821 $216,000

Map of Fort Peck ZIP codes

59223

The ZIP codes of Fort Peck, 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 Fort Peck

The nearest larger towns are Glasgow (3,190 people, 16 mi), Frazer (387 people, 19 mi) and St. Marie (306 people, 28 mi).

Towns near Fort Peck
TownPopulationDistance
Glasgow 3,190 15.6 mi

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

Cite this page

zipcodes.pro. “Fort Peck, MT ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/mt/fort-peck

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