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/FAIRMONT-CITY

Fairmont City ZIP codes, Illinois

No ZIP code is named for Fairmont City, IL; addresses there use a neighbouring town's name. 4 ZIP codes cover it: 62040, 62234, 62232 and 62201. Its area codes are 618 and 730.

USPS city name
0 ZIP codes
Overlapping the city
4 more
Population
2,492
Area codes
618, 730

NANPA lists no telephone rate centre for Fairmont City itself, so these are the area codes of the nearest one, Collinsville (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Fairmont City in numbers

About 2,492 people live in Fairmont City, in 881 households. The median household income is $48,147 a year, 42% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $71,200 (73% below the Illinois median), and median gross rent is $1,084 a month. The median age is 38.9; 13.2% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 17 minutes.

Population2,492Fairmont City2,492
Households881Fairmont City881
Median age38.9Fairmont City38.9Illinois39.0US 38.9
Median household income$48,147Fairmont City$48,147Illinois$83,390US $80,734
Median home value$71,200Fairmont City$71,200Illinois$263,300US $332,700
Median gross rent$1,084Fairmont City$1,084Illinois$1,274US $1,413
Bachelor's degree or higher13.2%Fairmont City13.2%Illinois37.8%US 35.7%
Mean commute16.9 minFairmont City16.9 minIllinois27.8 minUS 26.4 min
Population density402 / sq miFairmont City402 / sq mi

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

ZIP codes covering Fairmont City

These ZIP codes cover part of Fairmont City but are addressed as somewhere else.

ZIP codes overlapping Fairmont City
ZIP City Type Population Median income Median home
62040 Granite City , IL Standard 40,404 $60,031 $112,000
62201 East Saint Louis , IL Standard 4,921 $27,437 $60,000
62232 Caseyville , IL Standard 7,063 $64,269 $125,000
62234 Collinsville , IL Standard 31,648 $69,607 $170,000

Map of Fairmont City ZIP codes

The ZIP codes of Fairmont City, 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 Fairmont City

The nearest larger towns are East St. Louis (17,999 people, 2.6 mi), Madison (2,900 people, 2.8 mi) and Caseyville (4,130 people, 3.7 mi).

Towns near Fairmont City
TownPopulationDistance
East St. Louis 17,999 2.6 mi
Madison 2,900 2.8 mi
Caseyville 4,130 3.7 mi
Collinsville 24,031 5.5 mi
Pontoon Beach 6,025 5.6 mi
Granite City 26,549 5.9 mi
Fairview Heights 16,745 6.2 mi
St. Louis, MO 288,512 7.8 mi
Swansea 14,710 8.9 mi
Riverview, MO 2,731 9.0 mi
Maryville 8,316 9.2 mi
Glasgow Village, MO 5,504 9.3 mi
Glen Carbon 13,977 10.0 mi
Pine Lawn, MO 2,716 10.0 mi

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

Cite this page

zipcodes.pro. “Fairmont City, IL ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/il/fairmont-city

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