Census ACS 5-year estimates · 2026
The average income for households in Illinois is $115,638, which is 2% higher than the US average.
The median income for households in Illinois is $83,390, which is 3% higher than the US median.
More Illinois income data
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Explore the richest ZIPs in IllinoisIllinois has a population-weighted median household income of $89,352 and mean household income of $115,652 across 1,378 ZIP codes — 2% higher than the US average for median income.
$89,352
US ZIP-weighted median: $87,610 · 2% higher than the US average
$115,652
US ZIP-weighted mean: $113,774 · 1.7% higher than the US average
$46,422
US per capita: $44,688 · 3.9% higher than the US average
By age of householder
Census ACS table B19049 · 2024 5-year estimates
Gray bar = US median ($45,332)
Gray bar = US median ($90,756)
Gray bar = US median ($97,843)
Gray bar = US median ($58,390)
In Illinois, younger households (householder under 25) report a median income of $42,118. Income peaks for householders aged 45 to 64, at $101,369. Among householders 65 and over, the median falls to $59,361 — a common pattern as people transition from career earnings to retirement income.
Income distribution
Census ACS table B19001 · 5,036,449 households · 2024 5-year estimates
Under $50k
31%
$50k–$99k
27%
$100k–$149k
18%
$150k+
24%
Illinois has 5,036,449 households spread across 16 income brackets. The largest share (14%) falls in the $200,000 or more range. Roughly 42% of households earn $100,000 or more per year. About 31% earn less than $50,000.
Richest ZIP codes are ranked by mean household income among ZCTAs with at least 500 residents. Census suppresses exact medians above $250,000; mean income avoids ties.
| Rank | ZIP | County | Population | Mean income | Median income |
|---|---|---|---|---|---|
| 1 | 60043 | Cook County | 2,503 | $486,298 | $250,001 |
| 2 | 60022 | Cook County | 8,352 | $430,051 | $250,001 |
| 3 | 60093 | Cook County | 19,867 | $401,662 | $250,001 |
| 4 | 60521 | DuPage County | 18,056 | $355,281 | $249,200 |
| 5 | 60029 | Cook County | 518 | $323,764 | $242,772 |
| 6 | 60558 | Cook County | 13,446 | $310,563 | $230,255 |
| 7 | 60091 | Cook County | 27,333 | $298,249 | $189,909 |
| 8 | 60045 | Lake County | 21,074 | $298,127 | $233,125 |
| 9 | 60035 | Lake County | 30,398 | $250,788 | $168,094 |
| 10 | 60015 | Lake County | 28,096 | $249,478 | $183,125 |
1,378 ZIP codes grouped by county. Each code opens its income page.
Hero statistics use official Census ACS state totals (tables B19013 and S1902). Figures in this section are population-weighted aggregates of ZIP Code Tabulation Area (ZCTA) estimates for browsing individual ZIP codes. Page URL: https://resource.skyrocketbpo.com/tools/market-research/us-income-demographics-by-zip-code/illinois
Permanent URL backed by Census ACS data in PocketBase.
Context & methodology
Household income in Illinois is a core input for market sizing, franchise territory analysis, and local business plans. This page aggregates 1,378 ZIP Code Tabulation Areas (ZCTAs) using the U.S. Census Bureau's American Community Survey (ACS) 2024 5-year estimates — the same vintage used in official state tables B19013 (median income) and B19001 (income distribution).
Illinois's population-weighted median household income is $89,352, 2% above the US ZIP-weighted median. Mean household income of $115,652 is typically higher than the median when affluent households pull up the average — a signal worth checking before assuming a market is uniformly wealthy.
In Illinois, younger households (householder under 25) report a median income of $42,118. Income peaks for householders aged 45 to 64, at $101,369. Among householders 65 and over, the median falls to $59,361 — a common pattern as people transition from career earnings to retirement income.
Illinois has 5,036,449 households spread across 16 income brackets. The largest share (14%) falls in the $200,000 or more range. Roughly 42% of households earn $100,000 or more per year. About 31% earn less than $50,000.
ACS 5-year estimates combine five years of survey responses, improving reliability for smaller geographies at the cost of timeliness. For high-stakes decisions — site selection, loan underwriting, or investor decks — cross-check these figures with the primary Census tables linked below and note that the Census top-codes median household income at $250,001, so ZIP codes at that ceiling are genuinely in the highest reported bracket.
Data vintage: Census ACS 2024 5-year estimates (published 2026). Tables: B19013 (median HH income), B19001 (distribution), B19049 (income by age of householder).
Primary government data and reference pages for verifying and extending this analysis.
Official overview of the ACS — the primary source for annual household income, demographics, and housing estimates at state, county, and ZIP Code Tabulation Area levels.
Guidance on margins of error, sampling, and when to use 1-year vs. 5-year estimates — essential for interpreting small-area income data.
Explains how Census ZCTAs relate to USPS ZIP codes and why income figures may differ slightly from postal boundaries.
Population, income, poverty, and housing snapshot for Illinois from the Census Bureau's QuickFacts portal.
Official ACS Table B19013 median household income for Illinois.
Household counts by income bracket — the same B19001 structure shown in the income distribution chart on this page.
Employment, unemployment, wages, and CPI for Illinois — useful context alongside household income figures.
BEA estimates of personal income, wages, and transfer payments at the state level.
Combine ZIP-level income with these free Resource tools for fuller market pictures.