Population of Will County by Townships
| 1870 | 1860 | 1850 | |||||||
| Townships | Total | Native | Foreign | White | Colored | White | Colored | White | Colored |
| Bourbonnais | 1719 | ||||||||
| Carey | 214 | ||||||||
| Channahon | 1164 | 926 | 238 | 1162 | 2 | 911 | 617 | ||
| Crete | 1468 | 856 | 612 | 1467 | 1 | 1189 | 730 | 1 | |
| DuPage | 1118 | 810 | 308 | 1117 | 1 | 918 | 615 | 5 | |
| Florence | 875 | 644 | 231 | 875 | 691 | ||||
| Frankfort | 1924 | 1055 | 869 | 1924 | 1763 | 844 | |||
| Greengarden | 1202 | 646 | 556 | 1202 | 933 | ||||
| Homer | 1279 | 946 | 333 | 1257 | 22 | 1208 | 811 | ||
| Jackson | 1485 | 1189 | 296 | 1483 | 2 | 983 | 456 | ||
| Joliet | 2940 | 2093 | 847 | 2815 | 125 | ||||
| Joliet | 7263 | 4959 | 2304 | 7228 | 35 | 7066 | 36 | 2647 | 12 |
| First Ward | 1979 | 1476 | 503 | 1964 | 15 | ||||
| Second Ward | 966 | 578 | 388 | 966 | |||||
| Third Ward | 828 | 604 | 224 | 820 | 8 | ||||
| Fourth Ward | 1207 | 865 | 342 | 1204 | 3 | ||||
| Fifth Ward | 1361 | 843 | 518 | 1355 | 6 | ||||
| Sixth Ward | 922 | 593 | 329 | 919 | 3 | ||||
| Lockport | 3584 | 2368 | 1216 | 3566 | 18 | 2805 | 19 | 1646 | 11 |
| Lockport | 1772 | 1180 | 592 | 1766 | 6 | ||||
| Manhattan | 922 | 604 | 318 | 922 | 514 | ||||
| Momence | 573 | ||||||||
| Monee | 1600 | 879 | 721 | 1591 | 9 | 872 | |||
| Monee | 598 | 332 | 266 | 591 | 7 | ||||
| New Lenox | 1121 | 808 | 313 | 1107 | 14 | 907 | 617 | ||
| Peotone | 1213 | 761 | 452 | 1213 | 301 | ||||
| Plainfield | 1750 | 1500 | 250 | 1750 | 1726 | 1093 | |||
| Plainfield | 723 | 667 | 56 | 723 | |||||
| Reed | 2771 | 1184 | 1587 | 2771 | 781 | 183 | |||
| Rockville | 514 | ||||||||
| Sherburne | 453 | ||||||||
| Trenton | 240 | ||||||||
| Troy | 918 | 617 | 301 | 918 | 866 | 1 | 337 | 1 | |
| Washington | 1564 | 722 | 842 | 1563 | 1 | 578 | |||
| Wesley | 924 | 776 | 148 | 923 | 1 | 544 | |||
| Wheatland | 1133 | 823 | 310 | 1132 | 1 | 1069 | 749 | ||
| Will | 911 | 485 | 426 | 911 | 242 | 1 | |||
| Wilmington | 2776 | 1971 | 795 | 2757 | 9 | 1552 | 1343 | 3 | |
| Wilmington | 1828 | 1378 | 450 | 1819 | 9 | ||||
| Wilton | 1118 | 804 | 314 | 1117 | 1 | 845 | 269 | ||