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 — STATE/IL/COUNTY/MARION

Marion County, IL ZIP codes

There are 10 ZIP codes in Marion County, IL, in 10 towns, from 62801 to 62892. The largest are 62801 (Centralia), 62881 (Salem) and 62882 (Sandoval).

The county seat is Salem.

ZIP codes
10
Towns
10
County seat
Salem
County FIPS
17121
Population
37,000
Median household income
$61,240
Land area
573 sq mi
Area codes
618, 730
Metro area
Centralia

Marion County ZIP codes by town

Salem (county seat)
62881

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Marion County ZIP codes

62801628076284962853628546287062875628816288262892

The ZIP codes of Marion County, 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.

Marion County in numbers

About 37,000 people live in Marion County, in 15,512 households, the 36th most populous of Illinois's 102 counties. The median household income is $61,240 a year, 27% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $103,000 (61% below the Illinois median), and median gross rent is $794 a month. The median age is 41.5; 16.8% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 21 minutes.

Population37,000Marion37,000
Households15,512Marion15,512
Median age41.5Marion41.5Illinois39.0US 38.9
Median household income$61,240Marion$61,240Illinois$83,390US $80,734
Median home value$103,000Marion$103,000Illinois$263,300US $332,700
Median gross rent$794Marion$794Illinois$1,274US $1,413
Bachelor's degree or higher16.8%Marion16.8%Illinois37.8%US 35.7%
Mean commute21.1 minMarion21.1 minIllinois27.8 minUS 26.4 min
Population density65 / sq miMarion65 / sq mi

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

Largest towns in Marion County

Largest towns in Marion County
TownZIP codesPopulation
Centralia 1 11,856
Salem 1 7,236
Sandoval 1 1,004
Odin 1 972
Kinmundy 1 803
Iuka 1 534
Patoka 1 498
Alma 1 285
Kell 1 145
Vernon 1 69

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Marion County.

Not sure you are in Marion County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Marion County, with figures

ZIP codes in Marion County
ZIP City Type Population Median income Median home
62801 Centralia , IL Standard 19,827 $52,017 $94,800
62807 Alma , IL Standard 767 $82,321 $158,500
62849 Iuka , IL Standard 1,887 $60,789 $87,800
62853 Kell , IL Standard 969 $60,721 $79,900
62854 Kinmundy , IL Standard 1,827 $63,587 $101,500
62870 Odin , IL Standard 2,281 $59,821 $134,000
62875 Patoka , IL Standard 1,039 $73,333 $116,400
62881 Salem , IL Standard 11,078 $71,270 $115,200
62882 Sandoval , IL Standard 2,057 $55,582 $89,300
62892 Vernon , IL Standard 150 $75,417 $86,300

Cite this page

zipcodes.pro. “Marion County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/il/county/marion

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