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/GRANTSBURG

Grantsburg ZIP code, Illinois

The ZIP code for Grantsburg, IL is 62943, and its area code is 618.

USPS city name
1 ZIP code
Population
428
Area code
618

NANPA lists no telephone rate centre for Grantsburg itself, so these are the area codes of the nearest one, Simpson (8.4 miles). A town on an area-code boundary can differ from its neighbour.

Grantsburg in numbers

About 428 people live in Grantsburg, in 115 households. The median household income is $83,194 a year, about the same as the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $138,600 (47% below the Illinois median).

Population428Grantsburg428
Households115Grantsburg115
Median household income$83,194Grantsburg$83,194Illinois$83,390US $80,734
Median home value$138,600Grantsburg$138,600Illinois$263,300US $332,700

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the ZIP code addressed as Grantsburg. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Grantsburg

ZIP codes with the USPS city name Grantsburg
ZIP City Type Population Median income Median home
62943 Grantsburg , IL Standard 428 $83,194 $138,600

Map of Grantsburg ZIP codes

62943

The ZIP codes of Grantsburg, 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 Grantsburg

The nearest larger towns are Vienna (1,873 people, 8.7 mi), Karnak (466 people, 13 mi) and Golconda (691 people, 14 mi).

Towns near Grantsburg
TownPopulationDistance
Metropolis 5,864 14.6 mi
Paducah, KY 26,845 20.5 mi
Massac, KY 4,698 22.6 mi
Hendron, KY 4,495 23.0 mi
Farley, KY 4,458 23.8 mi
Reidland, KY 5,277 26.9 mi
Anna 4,196 27.9 mi
Marion 16,836 28.2 mi
Harrisburg 8,372 28.5 mi
Calvert City, KY 2,526 28.8 mi

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

Cite this page

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

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