Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — STATE/IL/COUNTY/CLAY

Clay County, IL ZIP codes

There are 7 ZIP codes in Clay County, IL, in 7 towns, from 62426 to 62899. The largest are 62839 (Flora), 62858 (Louisville) and 62899 (Xenia). 1 more crosses into it from a neighbouring county: 62838.

The county seat is Louisville.

ZIP codes
7
Partly in it
1 more
Towns
7
County seat
Louisville
County FIPS
17025
Population
13,052
Median household income
$60,417
Land area
468 sq mi

Clay County ZIP codes by town

Louisville (county seat)
62858

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.

ZIP codes partly in Clay County

This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Clay County.

Map of Clay County ZIP codes

62426624346282462839628586287962899

The ZIP codes of Clay 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.

Clay County in numbers

About 13,052 people live in Clay County, in 5,311 households, the 80th most populous of Illinois's 102 counties. The median household income is $60,417 a year, 28% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $97,400 (63% below the Illinois median), and median gross rent is $735 a month. The median age is 40.4; 13.1% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 25 minutes.

Population13,052Clay13,052
Households5,311Clay5,311
Median age40.4Clay40.4Illinois39.0US 38.9
Median household income$60,417Clay$60,417Illinois$83,390US $80,734
Median home value$97,400Clay$97,400Illinois$263,300US $332,700
Median gross rent$735Clay$735Illinois$1,274US $1,413
Bachelor's degree or higher13.1%Clay13.1%Illinois37.8%US 35.7%
Mean commute25.0 minClay25.0 minIllinois27.8 minUS 26.4 min
Population density28 / sq miClay28 / 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 Clay County

Largest towns in Clay County
TownZIP codesPopulation
Flora 1 4,475
Louisville 1 1,163
Clay City 1 723
Xenia 1 389
Edgewood 1 351
Ingraham 1 191
Sailor Springs 1 60

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 Clay County.

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

Every ZIP code in Clay County, with figures

ZIP codes in Clay County
ZIP City Type Population Median income Median home
62426 Edgewood , IL Standard 778 $51,667 $95,600
62434 Ingraham , IL Standard 191 — $193,100
62824 Clay City , IL Standard 1,485 $61,591 $102,100
62839 Flora , IL Standard 6,183 $53,685 $84,300
62858 Louisville , IL Standard 3,554 $66,319 $150,600
62879 Sailor Springs , IL Standard 28 $26,964 $23,200
62899 Xenia , IL Standard 2,022 $55,482 $147,800

Cite this page

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

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