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/CO/MASONVILLE

Masonville ZIP code, Colorado

The ZIP code for Masonville, CO is 80541, and its area code is 970.

USPS city name
1 ZIP code
Area code
970

NANPA lists no telephone rate centre for Masonville itself, so these are the area codes of the nearest one, Loveland (4.3 miles). A town on an area-code boundary can differ from its neighbour.

ZIP codes addressed as Masonville

ZIP codes with the USPS city name Masonville
ZIP City Type
80541 Masonville , CO No street area

Towns near Masonville

Towns near Masonville
TownPopulationDistance
Fort Collins 170,229 8.7 mi
Loveland 78,410 9.2 mi
Timnath 8,941 13.3 mi
Windsor 37,914 15.6 mi
Wellington 11,798 18.2 mi
Severance 10,130 18.3 mi
Estes Park 5,844 18.9 mi
Berthoud 12,411 19.1 mi
Johnstown 18,883 20.1 mi
Mead 5,919 21.5 mi
Milliken 8,871 22.2 mi
Longmont 99,406 22.8 mi
Greeley 110,806 23.5 mi
Evans 22,396 26.1 mi

More nearby: every ZIP code in Larimer County · Colorado ZIP codes

Cite this page

zipcodes.pro. “Masonville, CO ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/co/masonville

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