| Rank | City | 2024 Population (Est.) | Growth Rate (Annual) |
|---|---|---|---|
| 1 | Chicago | 2,664,452 | -0.9% |
| 2 | Aurora | 177,563 | -0.5% |
| 3 | Joliet | 150,489 | 0.1% |
| 4 | Naperville | 150,245 | 0.2% |
| 5 | Rockford | 146,120 | -0.6% |
| 6 | Elgin | 113,310 | -0.4% |
| 7 | Springfield | 112,544 | -0.5% |
| 8 | Peoria | 110,460 | -0.7% |
| 9 | Champaign | 89,189 | 0.3% |
| 10 | Waukegan | 87,642 | -0.6% |
| 11 | Cicero | 81,004 | -1.5% |
| 12 | Bloomington | 78,587 | 0.2% |
| 13 | Schaumburg | 75,750 | -1.2% |
| 14 | Evanston | 75,070 | -1.6% |
| 15 | Arlington Heights | 74,495 | -1.3% |
| 16 | Bolingbrook | 74,088 | 0.1% |
| 17 | Decatur | 68,670 | -0.9% |
| 18 | Skokie | 64,937 | -1.4% |
| 19 | Palatine | 64,869 | -1.4% |
| 20 | Des Plaines | 58,010 | -1.4% |
| 21 | Orland Park | 57,074 | -0.8% |
| 22 | Oak Lawn | 55,734 | -1.4% |
| 23 | Berwyn | 54,414 | -1.5% |
| 24 | Mount Prospect | 54,298 | -1.4% |
| 25 | Tinley Park | 53,886 | -1.1% |
| 26 | Wheaton | 52,938 | -0.4% |
| 27 | Normal | 52,618 | -0.6% |
| 28 | Oak Park | 52,055 | -1.4% |
| 29 | Hoffman Estates | 50,179 | -1.4% |
| 30 | Downers Grove | 49,706 | -0.3% |
| 31 | Plainfield | 47,448 | 1.9% |
| 32 | Glenview | 46,904 | -1.2% |
| 33 | Elmhurst | 45,336 | -0.2% |
| 34 | Lombard | 43,779 | -0.4% |
| 35 | Buffalo Grove | 42,482 | -0.5% |
| 36 | Moline | 41,965 | -0.7% |
| 37 | Romeoville | 40,955 | 0.9% |
| 38 | Crystal Lake | 40,861 | 0.5% |
| 39 | Belleville | 40,726 | -1.2% |
| 40 | DeKalb | 40,211 | -0.2% |
| 41 | Bartlett | 39,992 | -0.9% |
| 42 | Carol Stream | 38,966 | -0.7% |
| 43 | Quincy | 38,803 | -0.5% |
| 44 | Urbana | 38,209 | -0.1% |
| 45 | Park Ridge | 37,897 | -1.4% |
| 46 | Streamwood | 37,780 | -1.4% |
| 47 | Wheeling | 37,725 | -1.3% |
| 48 | Carpentersville | 37,099 | -0.7% |
| 49 | Oswego | 37,074 | 2.2% |
| 50 | Hanover Park | 36,165 | -1.1% |
| 51 | Rock Island | 36,132 | -0.8% |
| 52 | Addison | 35,167 | -0.5% |
| 53 | Calumet City | 34,358 | -1.4% |
| 54 | Northbrook | 33,977 | -1.1% |
| 55 | Woodridge | 33,566 | -0.6% |
| 56 | St. Charles | 32,654 | -0.4% |
| 57 | Glendale Heights | 32,409 | -0.8% |
| 58 | O'Fallon | 31,968 | -0.4% |
| 59 | Mundelein | 31,790 | 0.2% |
| 60 | Elk Grove Village | 31,350 | -1.4% |
| 61 | Pekin | 31,126 | -0.5% |
| 62 | North Chicago | 30,416 | 0.3% |
| 63 | Highland Park | 30,272 | 0.1% |
| 64 | Gurnee | 30,193 | -0.5% |
| 65 | Algonquin | 30,134 | 0.5% |
| 66 | Niles | 29,513 | -1.5% |
| 67 | Galesburg | 29,130 | -1.0% |
| 68 | Lake in the Hills | 28,661 | -0.3% |
| 69 | Glen Ellyn | 28,347 | -0.5% |
| 70 | Huntley | 28,269 | 0.6% |
| 71 | McHenry | 28,251 | 1.4% |
| 72 | Danville | 28,206 | -1.0% |
| 73 | Burbank | 28,164 | -1.3% |
| 74 | New Lenox | 28,047 | 1.0% |
| 75 | Lansing | 27,713 | -1.4% |
| 76 | Wilmette | 27,026 | -1.2% |
| 77 | Granite City | 26,908 | -1.0% |
| 78 | Round Lake Beach | 26,783 | -0.6% |
| 79 | Edwardsville | 26,698 | 1.8% |
| 80 | Vernon Hills | 26,677 | -0.2% |
| 81 | Lockport | 26,537 | 0.5% |
| 82 | Batavia | 26,235 | 0.2% |
| 83 | Oak Forest | 26,199 | -1.4% |
| 84 | Chicago Heights | 26,184 | -1.5% |
| 85 | Woodstock | 25,699 | 0.2% |
| 86 | Belvidere | 25,297 | 0.1% |
| 87 | West Chicago | 25,116 | -0.6% |
| 88 | Alton | 25,006 | -0.8% |
| 89 | Yorkville | 24,693 | 4.6% |
| 90 | Homer Glen | 24,546 | 0.1% |
| 91 | South Elgin | 24,277 | 0.6% |
| 92 | Zion | 24,206 | -0.6% |
| 93 | Morton Grove | 24,131 | -1.4% |
| 94 | Westmont | 23,933 | -0.6% |
| 95 | Collinsville | 23,779 | -1.0% |
| 96 | Melrose Park | 23,666 | -1.4% |
| 97 | Kankakee | 23,503 | -0.9% |
| 98 | Elmwood Park | 23,369 | -1.4% |
| 99 | Loves Park | 23,335 | -0.0% |
| 100 | Rolling Meadows | 23,329 | -1.1% |
The largest city in Illinois is Chicago, with a population of 2,664,452. Chicago is the 3rd largest city in the US. The second largest city is Aurora, with a population of 177,563, and is the 149th largest city in the US.
The major cities in Illinois are Chicago, Aurora, Joliet, Naperville, Rockford, Elgin, Springfield and Peoria. There are 8 major cities in Illinois, which are cities with a population greater than 100,000.
The capital of Illinois is Springfield, whose most recent population was 112,544. Springfield is the 7th largest city in the state of Illinois.
Among the 100 largest cities in Illinois, the fastest growing city is Huntley, whose population has grown 354.6% since the year 2000.
Among the 100 largest cities in Illinois, the fastest shrinking city is Chicago Heights, whose population has declined 20.0% since the year 2000. Chicago Heights's peak populuation was 33,070 in the year 1990, and it's current population of 26,184 represents a 20.8% decline from it's peak. Chicago Heights was once the 841st largest city in the US, but it's now the 1,505th largest.
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