ZIP codes
1,396
Illinois ZIP Codes & Demographics
Illinois capital is Springfield (IL); borders Indiana, Iowa, Kentucky, Missouri, Wisconsin. Illinois ZIP codes, demographics, and median household income...
Population
12,692,601
Median household income (avg.)
$78,143
104% of U.S. median
Average home value
$183,956
53% of U.S. median
Average rent
$811
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Quick facts about Illinois
Capital, postal abbreviation, region, and land neighbors — then ZIP demographics below.
- Capital
- Springfield
- Abbreviation
- IL
- Region
- Midwest
- State bird
- Cardinal
- State flower
- Violet
- Motto
- State Sovereignty, National Union
Illinois demographics
Illinois has 1,396 ZIP codes across 102 counties on US5, with a combined ZIP-area population of about 12,692,601.
Across ZIP codes with age data, the average median age is about 42.5 years.
Among cities represented in this ZIP set, Chicago is among the largest population centers.
Median household income in Illinois
The average median household income across ZIP codes in Illinois is about $78,143 — about 4% above the U.S. median ($75,149).
Among ZIPs with income data, 60022 (Glencoe) is near the top at about $250,001, while 62965 (Muddy) is near the bottom at about $11,726.
Housing in Illinois
For housing in Illinois, the average median home value is about $183,956 and the average median rent is about $811.
The most populous ZIP is 60629 (Chicago) with about 109,292 residents. Use the table below to compare ZIP codes across the state.
ZIP codes in Illinois
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
Frequently asked questions
What is the capital of Illinois?
The capital of Illinois is Springfield. See Quick Facts above for abbreviation, region, and neighbors, then browse ZIP demographics below.
What is the abbreviation for Illinois?
Illinois’s USPS postal abbreviation is IL.
What states border Illinois?
Illinois shares land borders with Indiana, Iowa, Kentucky, Missouri, Wisconsin. Practice adjacency in the neighboring-states quiz; confirm the list in Quick Facts on this page.
How many ZIP codes are in Illinois?
Illinois has 1,396 ZIP codes on US5 across 102 counties. Each row links to demographics, median income, and housing for that code.
What are the demographics of Illinois?
Illinois has a combined ZIP-area population of about 12,692,601 across 1,396 ZIP codes. Browse the table on this page for population, income, and housing by ZIP.
What is the median household income in Illinois?
The average median household income across ZIP codes in Illinois is about $78,143, about 4% above the U.S. median ($75,149). Average median home value is about $183,956. Among ZIPs with data, 60022 (Glencoe) is near the top ($250,001) and 62965 (Muddy) is near the bottom ($11,726).
Where can I find ZIP code lists for Illinois?
This page lists ZIP codes in Illinois with population, median household income, and home value. Sort the table or open a ZIP for a full demographics profile.
ZIP rankings in Illinois
Explore curated boards for highest income, largest population, and most affordable home values.
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