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/MI/PETERSBURG

Petersburg ZIP code, Michigan

The ZIP code for Petersburg, MI is 49270, and its area code is 734.

USPS city name
1 ZIP code
Population
1,179
Area code
734

Petersburg in numbers

About 1,179 people live in Petersburg, in 450 households. The median household income is $83,235 a year, 14% above the Michigan median of $72,875 (US: $80,734). The median owner-occupied home is valued at $215,500 (7% below the Michigan median), and median gross rent is $1,012 a month. The median age is 37.8; 15.7% of adults 25 and over hold a bachelor's degree or higher (32.4% across Michigan); the average commute takes 29 minutes.

Population1,179Petersburg1,179
Households450Petersburg450
Median age37.8Petersburg37.8Michigan40.2US 38.9
Median household income$83,235Petersburg$83,235Michigan$72,875US $80,734
Median home value$215,500Petersburg$215,500Michigan$231,600US $332,700
Median gross rent$1,012Petersburg$1,012Michigan$1,129US $1,413
Bachelor's degree or higher15.7%Petersburg15.7%Michigan32.4%US 35.7%
Mean commute28.8 minPetersburg28.8 minMichigan24.2 minUS 26.4 min
Population density2,441 / sq miPetersburg2,441 / sq mi

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

ZIP codes addressed as Petersburg

ZIP codes with the USPS city name Petersburg
ZIP City Type Population Median income Median home
49270 Petersburg , MI Standard 5,567 $94,840 $297,600

Map of Petersburg ZIP codes

49270

The ZIP codes of Petersburg, MI, 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 Petersburg

The nearest larger towns are Dundee (5,744 people, 5.2 mi), Blissfield (3,234 people, 9.0 mi) and Lambertville (9,955 people, 12 mi).

Towns near Petersburg
TownPopulationDistance
Dundee 5,744 5.2 mi
Blissfield 3,234 9.0 mi
Lambertville 9,955 11.7 mi
Temperance 8,914 11.7 mi
Milan 5,987 12.6 mi
Sylvania, OH 19,055 13.1 mi
Tecumseh 8,646 13.9 mi
West Monroe 2,711 14.6 mi
South Monroe 6,960 15.2 mi
Ottawa Hills, OH 4,798 16.5 mi
Monroe 20,320 17.0 mi
Adrian 20,395 17.0 mi
Clinton 2,536 17.4 mi
Toledo, OH 267,463 17.6 mi

More nearby: every ZIP code in Monroe County · Michigan ZIP codes

Cite this page

zipcodes.pro. “Petersburg, MI ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/mi/petersburg

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