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/MN/ORTONVILLE

Ortonville ZIP code, Minnesota

The ZIP code for Ortonville, MN is 56278, and its area code is 320.

USPS city name
1 ZIP code
Population
2,028
Area code
320

Ortonville in numbers

About 2,028 people live in Ortonville, in 859 households. The median household income is $56,133 a year, 37% below the Minnesota median of $89,062 (US: $80,734). The median owner-occupied home is valued at $166,300 (49% below the Minnesota median), and median gross rent is $747 a month. The median age is 46.9; 27.3% of adults 25 and over hold a bachelor's degree or higher (39.4% across Minnesota); the average commute takes 11 minutes.

Population2,028Ortonville2,028
Households859Ortonville859
Median age46.9Ortonville46.9Minnesota38.8US 38.9
Median household income$56,133Ortonville$56,133Minnesota$89,062US $80,734
Median home value$166,300Ortonville$166,300Minnesota$329,300US $332,700
Median gross rent$747Ortonville$747Minnesota$1,280US $1,413
Bachelor's degree or higher27.3%Ortonville27.3%Minnesota39.4%US 35.7%
Mean commute10.7 minOrtonville10.7 minMinnesota22.7 minUS 26.4 min
Population density484 / sq miOrtonville484 / sq mi

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

ZIP codes addressed as Ortonville

ZIP codes with the USPS city name Ortonville
ZIP City Type Population Median income Median home
56278 Ortonville , MN Standard 2,698 $63,203 $202,800

Map of Ortonville ZIP codes

56278

The ZIP codes of Ortonville, MN, 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 Ortonville

The nearest larger towns are Milbank, SD (3,525 people, 11 mi), Morris (5,128 people, 33 mi) and Sisseton, SD (2,670 people, 38 mi).

Towns near Ortonville
TownPopulationDistance
Milbank, SD 3,525 10.9 mi

More nearby: every ZIP code in Big Stone County · Minnesota ZIP codes

Cite this page

zipcodes.pro. “Ortonville, MN ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/mn/ortonville

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