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/IL/ST-PETER

St. Peter ZIP code, Illinois

The ZIP code for St. Peter, IL is 62880, and its area codes are 618 and 730.

USPS city name
1 ZIP code
Population
338
Area codes
618, 730

Also written Saint Peter, the spelling the Postal Service uses.

St. Peter in numbers

About 338 people live in St. Peter, in 128 households. The median household income is $63,500 a year, 24% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $99,600 (62% below the Illinois median), and median gross rent is $650 a month. The median age is 39.7; 18.2% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 22 minutes.

Population338St. Peter338
Households128St. Peter128
Median age39.7St. Peter39.7Illinois39.0US 38.9
Median household income$63,500St. Peter$63,500Illinois$83,390US $80,734
Median home value$99,600St. Peter$99,600Illinois$263,300US $332,700
Median gross rent$650St. Peter$650Illinois$1,274US $1,413
Bachelor's degree or higher18.2%St. Peter18.2%Illinois37.8%US 35.7%
Mean commute22.1 minSt. Peter22.1 minIllinois27.8 minUS 26.4 min
Population density649 / sq miSt. Peter649 / sq mi

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

ZIP codes addressed as Saint Peter

ZIP codes with the USPS city name Saint Peter
ZIP City Type Population Median income Median home
62880 Saint Peter , IL Standard 658 $61,667 $135,500

Map of St. Peter ZIP codes

62880

The ZIP codes of St. Peter, IL, 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 St. Peter

The nearest larger towns are Farina (570 people, 4.6 mi), Kinmundy (803 people, 6.6 mi) and Brownstown (722 people, 10 mi).

Towns near St. Peter
TownPopulationDistance
Vandalia 5,796 15.8 mi
Salem 7,236 17.6 mi
Effingham 12,342 23.8 mi
Flora 4,475 24.6 mi
Centralia 11,856 28.1 mi
Greenville 7,235 29.0 mi

More nearby: every ZIP code in Fayette County · Illinois ZIP codes

Cite this page

zipcodes.pro. “St. Peter, IL ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/il/st-peter

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