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/CASEY

Casey ZIP code, Illinois

The ZIP code for Casey, IL is 62420, and its area code is 217.

USPS city name
1 ZIP code
Population
2,239
Area code
217

Casey in numbers

About 2,239 people live in Casey, in 1,151 households. The median household income is $48,074 a year, 42% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $91,800 (65% below the Illinois median), and median gross rent is $713 a month. The median age is 48.4; 16.9% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 30 minutes.

Population2,239Casey2,239
Households1,151Casey1,151
Median age48.4Casey48.4Illinois39.0US 38.9
Median household income$48,074Casey$48,074Illinois$83,390US $80,734
Median home value$91,800Casey$91,800Illinois$263,300US $332,700
Median gross rent$713Casey$713Illinois$1,274US $1,413
Bachelor's degree or higher16.9%Casey16.9%Illinois37.8%US 35.7%
Mean commute29.5 minCasey29.5 minIllinois27.8 minUS 26.4 min
Population density854 / sq miCasey854 / sq mi

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

ZIP codes addressed as Casey

ZIP codes with the USPS city name Casey
ZIP City Type Population Median income Median home
62420 Casey , IL Standard 4,299 $65,771 $140,400

Map of Casey ZIP codes

62420

The ZIP codes of Casey, 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 Casey

The nearest larger towns are Charleston (17,062 people, 16 mi), Marshall (4,040 people, 17 mi) and Mattoon (16,586 people, 23 mi).

Towns near Casey
TownPopulationDistance
Charleston 17,062 16.1 mi
Marshall 4,040 17.0 mi
Mattoon 16,586 23.4 mi
Newton 2,932 24.0 mi
Robinson 7,084 24.6 mi
Paris 8,276 26.6 mi

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

Cite this page

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

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