Ranking of Illinois Cities and Places By Population with Unclassified Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 2.60M people in Illinois with Unclassified ancestry. Among all Illinois cities and places, Chicago city had the highest population with Unclassified ancestry (445.05K), followed by Aurora city (37.86K), and Joliet city (29.98K).
The chart and table below shows the top 10 cities and places with high number of people with Unclassified ancestry.
You can see similar information for other states and for other ancestry groups in Illinois.
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Related Topics: US Census 2021 Topic List.
Data Source: US Census Bureau.
Ranking of Illinois Cities and Places By Population with Unclassified Ancestry in 2021
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| Rank | City or Place | Population |
|---|---|---|
| 1 | Chicago city | 445046 |
| 2 | Aurora city | 37857 |
| 3 | Joliet city | 29983 |
| 4 | Springfield city | 29623 |
| 5 | Peoria city | 28244 |
| 6 | Rockford city | 26814 |
| 7 | Naperville city | 24992 |
| 8 | Champaign city | 22680 |
| 9 | Elgin city | 21115 |
| 10 | Decatur city | 17953 |
| 11 | Waukegan city | 16817 |
| 12 | Moline city | 13305 |
| 13 | Schaumburg village | 13290 |
| 14 | Bloomington city | 13230 |
| 15 | Bolingbrook village | 12153 |
| 16 | Quincy city | 11895 |
| 17 | Normal town | 11705 |
| 18 | Belleville city | 11184 |
| 19 | Skokie village | 10915 |
| 20 | Pekin city | 10738 |
| 21 | Arlington Heights village | 10403 |
| 22 | Evanston city | 10402 |
| 23 | Rock Island city | 10351 |
| 24 | Cicero town | 10161 |
| 25 | Palatine village | 10068 |
| 26 | Oak Lawn village | 10044 |
| 27 | Granite City city | 9304 |
| 28 | Galesburg city | 9099 |
| 29 | Des Plaines city | 8961 |
| 30 | Tinley Park village | 8731 |
| 31 | Romeoville village | 8631 |
| 32 | DeKalb city | 8550 |
| 33 | Crystal Lake city | 8285 |
| 34 | Urbana city | 8206 |
| 35 | Wheaton city | 8185 |
| 36 | Orland Park village | 8059 |
| 37 | Berwyn city | 7983 |
| 38 | Oak Park village | 7853 |
| 39 | Danville city | 7845 |
| 40 | Downers Grove village | 7630 |
| 41 | Glenview village | 7530 |
| 42 | Carpentersville village | 7463 |
| 43 | Hanover Park village | 7319 |
| 44 | East Peoria city | 7168 |
| 45 | O'Fallon city | 7159 |
| 46 | Carbondale city | 7103 |
| 47 | Mount Prospect village | 7021 |
| 48 | Calumet City city | 6984 |
| 49 | Elmhurst city | 6941 |
| 50 | Lombard village | 6914 |
| 51 | Plainfield village | 6891 |
| 52 | East Moline city | 6779 |
| 53 | Hoffman Estates village | 6698 |
| 54 | Oswego village | 6542 |
| 55 | Edwardsville city | 6484 |
| 56 | North Chicago city | 6354 |
| 57 | Alton city | 6316 |
| 58 | Charleston city | 6283 |
| 59 | Bartlett village | 6137 |
| 60 | Buffalo Grove village | 6089 |
| 61 | Carol Stream village | 6057 |
| 62 | Addison village | 5996 |
| 63 | Freeport city | 5990 |
| 64 | Wheeling village | 5958 |
| 65 | Lake in the Hills village | 5842 |
| 66 | Streamwood village | 5833 |
| 67 | Machesney Park village | 5808 |
| 68 | Collinsville city | 5729 |
| 69 | Belvidere city | 5695 |
| 70 | Park Ridge city | 5684 |
| 71 | Loves Park city | 5676 |
| 72 | Woodridge village | 5648 |
| 73 | Marion city | 5640 |
| 74 | Northbrook village | 5588 |
| 75 | Glendale Heights village | 5585 |
| 76 | Zion city | 5573 |
| 77 | Mundelein village | 5540 |
| 78 | South Elgin village | 5437 |
| 79 | Oak Forest city | 5409 |
| 80 | Woodstock city | 5366 |
| 81 | Highland Park city | 5301 |
| 82 | Mattoon city | 5286 |
| 83 | Fairview Heights city | 5268 |
| 84 | Algonquin village | 5231 |
| 85 | Montgomery village | 5127 |
| 86 | St. Charles city | 5093 |
| 87 | Mount Vernon city | 5041 |
| 88 | Kankakee city | 5021 |
| 89 | Glen Ellyn village | 4992 |
| 90 | Lansing village | 4921 |
| 91 | Jacksonville city | 4864 |
| 92 | Gurnee village | 4796 |
| 93 | West Chicago city | 4784 |
| 94 | Round Lake Beach village | 4726 |
| 95 | Macomb city | 4703 |
| 96 | East St. Louis city | 4638 |
| 97 | Vernon Hills village | 4630 |
| 98 | McHenry city | 4608 |
| 99 | Bellwood village | 4606 |
| 100 | South Holland village | 4587 |
| 101 | New Lenox village | 4552 |
| 102 | Niles village | 4543 |
| 103 | Elk Grove Village village | 4531 |
| 103 | Lockport city | 4531 |
| 104 | Taylorville city | 4504 |
| 105 | Bridgeview village | 4473 |
| 106 | Chatham village | 4380 |
| 107 | Batavia city | 4288 |
| 108 | Godfrey village | 4246 |
| 109 | Yorkville city | 4226 |
| 110 | Herrin city | 4219 |
| 111 | Canton city | 4182 |
| 112 | Ottawa city | 4181 |
| 113 | Wilmette village | 4174 |
| 114 | Burbank city | 4145 |
| 115 | Deerfield village | 4060 |
| 116 | Bourbonnais village | 3996 |
| 117 | Cahokia village | 3922 |
| 118 | Lake Zurich village | 3914 |
| 119 | Matteson village | 3897 |
| 120 | Plano city | 3872 |
| 121 | Centralia city | 3869 |
| 122 | Alsip village | 3833 |
| 123 | Lake Forest city | 3816 |
| 124 | Lincoln city | 3811 |
| 125 | Crest Hill city | 3793 |
| 126 | Paris city | 3787 |
| 127 | Beach Park village | 3767 |
| 128 | Westmont village | 3759 |
| 129 | North Aurora village | 3746 |
| 130 | Dixon city | 3734 |
| 131 | Homer Glen village | 3731 |
| 132 | Evergreen Park village | 3668 |
| 133 | Antioch village | 3650 |
| 134 | Chicago Heights city | 3649 |
| 135 | Libertyville village | 3630 |
| 136 | Rantoul village | 3608 |
| 137 | Wauconda village | 3600 |
| 138 | Wood River city | 3584 |
| 139 | Lisle village | 3551 |
| 140 | Morton village | 3537 |
| 141 | Maywood village | 3534 |
| 142 | Park Forest village | 3498 |
| 143 | Blue Island city | 3478 |
| 143 | Kewanee city | 3478 |
| 144 | Rolling Meadows city | 3433 |
| 145 | Shiloh village | 3432 |
| 146 | Dolton village | 3418 |
| 147 | Bloomingdale village | 3387 |
| 148 | Morton Grove village | 3369 |
| 149 | Harvey city | 3343 |
| 150 | Sterling city | 3335 |
| 151 | Geneva city | 3317 |
| 152 | Frankfort village | 3299 |
| 153 | Troy city | 3297 |
| 154 | Washington city | 3290 |
| 155 | Brookfield village | 3287 |
| 156 | Homewood village | 3284 |
| 157 | Hinsdale village | 3279 |
| 158 | Roselle village | 3248 |
| 159 | Villa Park village | 3247 |
| 160 | Round Lake village | 3222 |
| 161 | Benton city | 3213 |
| 162 | Hickory Hills city | 3187 |
| 163 | Swansea village | 3180 |
| 164 | Shorewood village | 3175 |
| 165 | Melrose Park village | 3166 |
| 166 | Darien city | 3162 |
| 167 | Markham city | 3130 |
| 168 | Boulder Hill CDP | 3123 |
| 169 | Monmouth city | 3070 |
| 170 | Sycamore city | 3032 |
| 171 | Country Club Hills city | 3021 |
| 172 | Huntley village | 3016 |
| 173 | Mokena village | 2989 |
| 174 | Cary village | 2957 |
| 175 | Grayslake village | 2939 |
| 176 | Bradley village | 2934 |
| 177 | Streator city | 2902 |
| 178 | Channahon village | 2842 |
| 179 | Bethalto village | 2795 |
| 180 | Harrisburg city | 2789 |
| 181 | Franklin Park village | 2771 |
| 182 | Pontoon Beach village | 2760 |
| 183 | Effingham city | 2683 |
| 184 | Litchfield city | 2672 |
| 185 | West Frankfort city | 2667 |
| 186 | Elmwood Park village | 2621 |
| 187 | Bensenville village | 2595 |
| 188 | Clinton city | 2550 |
| 189 | Morris city | 2548 |
| 190 | Murphysboro city | 2544 |
| 191 | Chicago Ridge village | 2512 |
| 192 | Mahomet village | 2483 |
| 193 | Roscoe village | 2475 |
| 194 | Salem city | 2461 |
| 195 | Savoy village | 2453 |
| 196 | Pontiac city | 2421 |
| 197 | Waterloo city | 2392 |
| 198 | Du Quoin city | 2375 |
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