Illinois ZIP Codes & Demographics
1,575 ZIP codes · 102 counties · 20+ cities
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 39.3 yrs |
|---|---|
| Avg HH Size | 2.50 |
| Below Poverty | 11.5% ▲ 15% above avg |
| College Grads | 46.9% ▲ 21% above avg |
| Unemployment | 5.9% ▲ 21% above avg |
| No HS Diploma | 152,514 (1.9%) |
| HS Graduate | 2,050,452 (25.4%) |
| Some College | 907,009 (11.2%) |
| Associates | 1,119,982 (13.9%) |
| Bachelors | 725,140 (9%) |
| Graduate Degree | 3,115,830 (38.6%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $87,400 ▲ 15% above avg |
|---|---|
| Median Home Value | $278,664 ≈ Avg |
| Home/Income Ratio | 3.2x (nat avg ~3.5x) |
| Median Rent | $1,308/mo |
| Total Housing Units | 5,443,481 |
| Vacant Units | 441,588 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Illinois contains 1575 ZIP codes across 102 counties. With an estimated population of 12,692,601 residents and a median age of 39.3 years, it is a middle-aged state in terms of demographics.
Economically, Illinois is broadly a middle-income state. The median household income of $87,400 is near the national average. The statewide unemployment rate is 5.9%, above the national average. Approximately 11.5% of residents live below the poverty line.
Illinois has a mid-range housing market overall, with a median home value of $278,664 — near the national average. Median monthly rent across the state averages around $1,307. Homeownership stands at 67.8% statewide.
The population of Illinois is majority White (58.75%). Residents are broadly well-educated — 46.9% hold a bachelor's degree or higher, above the national average.
The 1575 ZIP codes across Illinois vary widely in character — from dense urban cores to rural agricultural areas. Each of the 102 counties has its own economic profile, housing market, and demographic makeup. Browse by county below to find ZIP codes that match your specific needs, whether you're researching relocation, real estate, business demographics, or local government boundaries.
Looking for ZIP code data in Illinois? Every ZIP code page includes population counts, median household income, home values, rental rates, age distribution, race and ethnicity breakdown, education levels, commute data, and housing stock information — all sourced from the U.S. Census Bureau's American Community Survey.
| City | ZIPs | Population | Avg Income |
|---|---|---|---|
| Chicago | 84 | 2,691,226 | $83,026 |
| Aurora | 10 | 187,044 | $107,571 |
| Rockford | 14 | 178,644 | $56,379 |
| Naperville | 6 | 167,976 | $149,640 |
| Springfield | 35 | 137,953 | $73,193 |
| Joliet | 6 | 130,147 | $75,544 |
| Peoria | 29 | 127,011 | $50,026 |
| Elgin | 5 | 123,995 | $100,806 |
| Plainfield | 3 | 100,891 | $127,537 |
| Waukegan | 3 | 100,191 | $71,746 |
| Champaign | 6 | 95,565 | $65,786 |
| Belleville | 5 | 93,484 | $69,880 |
| Des Plaines | 4 | 89,822 | $84,730 |
| Bloomington | 8 | 85,488 | $89,820 |
| Cicero | 1 | 83,223 | $68,548 |
| Evanston | 6 | 81,285 | $118,465 |
| Arlington Heights | 3 | 80,906 | $112,633 |
| Decatur | 6 | 79,432 | $55,586 |
| Schaumburg | 7 | 77,989 | $94,813 |
| Palatine | 7 | 74,414 | $101,742 |
| County | ZIPs | Population | Avg Income | Avg Home | Unemp. | College |
|---|---|---|---|---|---|---|
| Cook County | 213 | 5,079,341 | $91,619 | $345,153 | 6.9% | 51.8% |
| DuPage County | 53 | 954,384 | $117,503 | $416,725 | 5.1% | 58.5% |
| Lake County | 33 | 745,868 | $116,971 | $370,881 | 4.8% | 51.8% |
| Will County | 33 | 732,340 | $106,655 | $284,053 | 5.3% | 43.1% |
| Kane County | 29 | 528,409 | $113,024 | $322,772 | 4.1% | 47.6% |
| McHenry County | 20 | 326,677 | $106,343 | $289,616 | 4.8% | 43.3% |
| Winnebago County | 28 | 284,318 | $70,189 | $153,838 | 6.5% | 35.2% |
| Madison County | 28 | 269,532 | $76,248 | $173,122 | 5.5% | 36.8% |
| St. Clair County | 30 | 248,247 | $68,258 | $139,542 | 8.2% | 35.6% |
| Champaign County | 33 | 205,876 | $83,355 | $187,851 | 3.9% | 43.2% |
| Sangamon County | 54 | 195,146 | $88,524 | $187,200 | 3.4% | 41.0% |
| Peoria County | 44 | 176,303 | $76,606 | $168,050 | 6.7% | 46.5% |
| McLean County | 32 | 172,602 | $89,517 | $178,141 | 2.8% | 44.3% |
| Rock Island County | 21 | 144,534 | $78,059 | $170,458 | 4.5% | 32.2% |
| Tazewell County | 18 | 132,765 | $85,667 | $171,146 | 3.8% | 41.0% |
| Kendall County | 8 | 119,294 | $99,661 | $265,237 | 3.0% | 41.6% |
| Kankakee County | 16 | 105,699 | $78,206 | $184,366 | 5.8% | 32.7% |
| DeKalb County | 14 | 105,174 | $89,557 | $236,978 | 5.6% | 39.4% |
| LaSalle County | 24 | 104,801 | $78,610 | $162,563 | 4.9% | 28.8% |
| Macon County | 18 | 102,204 | $77,920 | $143,126 | 5.6% | 35.4% |
| Vermilion County | 24 | 73,323 | $72,549 | $124,025 | 5.5% | 28.4% |
| Adams County | 17 | 64,937 | $74,641 | $142,486 | 3.0% | 34.8% |
| Williamson County | 11 | 63,422 | $54,448 | $117,390 | 5.3% | 34.9% |
| Whiteside County | 12 | 56,331 | $73,550 | $145,858 | 5.0% | 32.1% |
| Jackson County | 16 | 55,318 | $58,790 | $111,457 | 8.9% | 34.6% |
| Grundy County | 9 | 53,533 | $87,259 | $213,766 | 4.9% | 30.1% |
| Boone County | 5 | 51,084 | $96,956 | $224,500 | 10.6% | 38.1% |
| Ogle County | 16 | 50,265 | $78,731 | $181,564 | 4.4% | 38.0% |
| Knox County | 17 | 49,464 | $67,799 | $124,412 | 4.2% | 36.8% |
| Henry County | 16 | 47,580 | $71,318 | $138,781 | 3.8% | 39.7% |
| Coles County | 7 | 46,678 | $70,820 | $119,371 | 6.1% | 36.4% |
| Stephenson County | 14 | 45,183 | $73,871 | $155,123 | 3.4% | 40.3% |
| Marion County | 11 | 42,965 | $63,901 | $105,527 | 4.9% | 30.1% |
| Macoupin County | 19 | 40,583 | $66,852 | $121,622 | 5.8% | 30.2% |
| Franklin County | 16 | 38,169 | $50,964 | $80,740 | 7.4% | 28.1% |
| Effingham County | 10 | 36,672 | $73,173 | $159,400 | 2.8% | 33.7% |
| Jefferson County | 12 | 35,999 | $68,362 | $118,527 | 5.3% | 32.9% |
| Monroe County | 7 | 35,210 | $115,833 | $220,900 | 2.6% | 41.1% |
| Lee County | 14 | 34,718 | $75,043 | $162,983 | 3.3% | 34.3% |
| Fulton County | 20 | 33,821 | $57,955 | $91,605 | 7.1% | 27.6% |
| Christian County | 13 | 33,490 | $66,121 | $109,984 | 3.4% | 21.5% |
| Clinton County | 13 | 33,469 | $84,955 | $173,836 | 3.6% | 37.4% |
| Livingston County | 17 | 32,793 | $77,584 | $136,470 | 2.4% | 30.0% |
| Bureau County | 24 | 32,775 | $64,824 | $108,004 | 4.4% | 24.8% |
| Woodford County | 10 | 32,727 | $85,073 | $192,050 | 4.1% | 43.4% |
| Randolph County | 15 | 32,591 | $67,575 | $150,961 | 5.6% | 21.9% |
| Morgan County | 11 | 32,287 | $70,850 | $114,433 | 2.5% | 26.5% |
| Montgomery County | 16 | 28,408 | $67,404 | $101,337 | 7.4% | 28.5% |
| Iroquois County | 24 | 28,270 | $62,973 | $118,109 | 5.6% | 24.3% |
| Logan County | 14 | 27,603 | $74,490 | $114,983 | 2.8% | 30.1% |
| McDonough County | 11 | 26,776 | $57,617 | $101,681 | 4.7% | 38.4% |
| Jersey County | 8 | 24,443 | $76,032 | $155,125 | 4.3% | 28.0% |
| Saline County | 7 | 24,114 | $54,254 | $107,733 | 4.6% | 33.7% |
| Douglas County | 9 | 22,664 | $74,530 | $132,887 | 3.1% | 29.2% |
| Jo Daviess County | 9 | 21,448 | $70,610 | $169,522 | 3.0% | 33.5% |
| Shelby County | 13 | 20,465 | $68,464 | $138,092 | 3.8% | 32.4% |
| Fayette County | 9 | 20,159 | $56,641 | $111,628 | 2.8% | 28.1% |
| Perry County | 5 | 20,111 | $64,575 | $96,880 | 5.0% | 26.0% |
| Crawford County | 8 | 19,269 | $75,226 | $107,442 | 3.7% | 34.8% |
| Hancock County | 16 | 18,344 | $62,915 | $106,157 | 5.4% | 35.8% |
| Bond County | 7 | 17,415 | $60,476 | $126,628 | 4.8% | 25.4% |
| Edgar County | 8 | 16,470 | $60,694 | $82,262 | 6.4% | 31.1% |
| Carroll County | 7 | 16,253 | $67,936 | $121,728 | 3.9% | 30.8% |
| Union County | 7 | 16,168 | $66,275 | $127,280 | 8.3% | 35.1% |
| Piatt County | 10 | 16,036 | $72,515 | $143,177 | 10.1% | 35.5% |
| Clark County | 6 | 15,846 | $66,129 | $121,900 | 5.1% | 39.5% |
| Mercer County | 12 | 15,779 | $69,686 | $121,927 | 3.6% | 29.8% |
| Richland County | 6 | 15,706 | $70,381 | $88,616 | 4.7% | 38.8% |
| Pike County | 15 | 15,109 | $61,462 | $98,806 | 4.1% | 26.1% |
| Lawrence County | 4 | 15,044 | $59,095 | $96,825 | 7.7% | 31.1% |
| Warren County | 8 | 15,040 | $69,767 | $93,300 | 3.1% | 37.5% |
| De Witt County | 8 | 15,031 | $73,250 | $141,314 | 4.9% | 35.2% |
| Wayne County | 11 | 14,854 | $59,659 | $104,988 | 4.6% | 31.5% |
| White County | 10 | 14,680 | $48,029 | $78,112 | 5.5% | 35.2% |
| Mason County | 9 | 14,676 | $62,239 | $105,255 | 8.9% | 28.5% |
| Johnson County | 10 | 14,474 | $64,403 | $138,366 | 4.0% | 29.3% |
| Ford County | 9 | 13,454 | $62,268 | $102,622 | 6.5% | 29.8% |
| Cass County | 6 | 13,354 | $64,990 | $109,080 | 4.9% | 31.6% |
| Clay County | 6 | 13,332 | $59,781 | $118,000 | 3.7% | 24.0% |
| Massac County | 3 | 13,207 | $54,438 | $85,566 | 15.6% | 30.1% |
| Washington County | 10 | 13,142 | $76,877 | $131,000 | 5.0% | 40.7% |
| Moultrie County | 5 | 13,113 | $77,094 | $116,900 | 2.3% | 29.8% |
| Marshall County | 9 | 12,647 | $67,785 | $128,062 | 7.0% | 25.8% |
| Menard County | 6 | 12,309 | $78,512 | $152,240 | 4.4% | 31.9% |
| Greene County | 10 | 12,220 | $66,122 | $95,650 | 3.0% | 26.8% |
| Wabash County | 5 | 11,027 | $62,207 | $80,750 | 8.6% | 36.3% |
| Stark County | 7 | 9,562 | $74,430 | $111,028 | 2.8% | 39.6% |
| Cumberland County | 5 | 9,009 | $66,768 | $117,325 | 6.0% | 31.6% |
| Jasper County | 7 | 8,372 | $85,061 | $160,233 | 3.5% | 41.0% |
| Hamilton County | 5 | 7,934 | $81,553 | $106,133 | 5.4% | 44.9% |
| Schuyler County | 6 | 6,585 | $59,229 | $93,300 | 5.2% | 30.1% |
| Brown County | 3 | 6,310 | $72,958 | $140,266 | 2.7% | 27.3% |
| Henderson County | 8 | 5,782 | $73,535 | $98,925 | 6.4% | 28.8% |
| Edwards County | 5 | 5,657 | $63,948 | $93,075 | 5.1% | 34.3% |
| Pulaski County | 9 | 5,650 | $50,986 | $96,350 | 2.8% | 23.5% |
| Putnam County | 7 | 5,648 | $75,833 | $166,114 | 3.2% | 36.1% |
| Alexander County | 7 | 4,996 | $48,467 | $72,180 | 6.2% | 19.3% |
| Gallatin County | 6 | 4,814 | $55,476 | $81,700 | 8.9% | 29.1% |
| Scott County | 4 | 4,467 | $67,727 | $84,550 | 3.3% | 30.5% |
| Calhoun County | 8 | 4,099 | $87,032 | $161,883 | 4.8% | 35.3% |
| Pope County | 3 | 3,204 | $55,591 | $148,100 | 3.6% | 36.6% |
| Hardin County | 4 | 3,151 | $52,150 | $99,533 | 3.4% | 23.6% |