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/SMITHBORO

Smithboro ZIP code, Illinois

The ZIP code for Smithboro, IL is 62284, and its area codes are 618 and 730.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
164
Area codes
618, 730

NANPA lists no telephone rate centre for Smithboro itself, so these are the area codes of the nearest one, Mulberry Grove (5.8 miles). A town on an area-code boundary can differ from its neighbour.

Mail addressed to Smithboro uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

ZIP codes addressed as Smithboro

ZIP codes with the USPS city name Smithboro
ZIP City Type Population Median income Median home
62284 Smithboro , IL Standard 686 $51,875 $154,300

Other ZIP codes overlapping Smithboro

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

ZIP codes overlapping Smithboro
ZIP City Type Population Median income Median home
62246 Greenville , IL Standard 10,077 $66,970 $159,500

Map of Smithboro ZIP codes

62284

The ZIP codes of Smithboro, 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 Smithboro

The nearest larger towns are Greenville (7,235 people, 2.7 mi), Mulberry Grove (765 people, 4.7 mi) and Keyesport (635 people, 11 mi).

Towns near Smithboro
TownPopulationDistance
Greenville 7,235 2.7 mi
Vandalia 5,796 13.5 mi
Carlyle 2,980 18.9 mi
Highland 10,262 20.5 mi
Hillsboro 5,803 20.7 mi
Breese 4,301 21.8 mi
Staunton 4,298 25.5 mi
Litchfield 6,834 26.1 mi
Trenton 2,664 27.2 mi
Salem 7,236 27.6 mi
Centralia 11,856 28.3 mi

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

Cite this page

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

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