Transcribed by Conni McDaniel Hall, March 2018. Source: https://www.hathitrust.org/
| Minor Civil Division | 1910 | 1900 | 1890 | Footnotes | |
|---|---|---|---|---|---|
| Jones County | 19,050 | 21,854 | 20,233 | ||
| Cass township | 655 | 851 | 836 | ||
| Castle Grove township | 688 | 784 | 750 | ||
| Clay township | 537 | 673 | 696 | ||
| Fairview township, including Anamosa city | 4,006 | 4,366 | 3,535 | Part of Fairview township (Strawberry Hill town annexed to Anamosa city in 1901) | |
| Anamosa City | 2,983 | 2,891 | 2,078 | Part of Fairview township (Strawberry Hill town annexed to Anamosa city in 1901) | |
| Ward 1 | 593 | ||||
| Ward 2 | 1,234 | ||||
| Ward 3 | 636 | ||||
| Ward 4 | 520 | ||||
| Greenfield township, Including Martelle town | 781 | 842 | 799 | ||
| Martelle town | 178 | 158 | |||
| Hale township | 790 | 1,012 | 924 | ||
| Jackson township | 669 | 813 | 825 | ||
| Lovell township, including Monticello city | 2,763 | 3,014 | 2,830 | ||
| Monticello city | 2,043 | 2,104 | 1,938 | ||
| Ward 1 | 641 | ||||
| Ward 2 | 757 | ||||
| Ward 3 | 645 | ||||
| Madison township, including Center Junction town and parts of Onslow and Wyoming towns | 1,006 | 1,253 | 1,124 | 1890 totals-Exclusive of population of Onslow and Wyoming towns. | |
| Center Junction town | 199 | 255 | 210 | ||
| Onslow town (part of) | 90 | 133 | |||
| Total for Onslow town in Madison and Wyoming townships | 207 | 263 | 237 | ||
| Wyoming town (part of) | 12 | 15 | |||
| Total for Wyoming town in Madison and Wyoming townships | 733 | 794 | 704 | ||
| Oxford township, including Oxford Junction town | 1,584 | 1,605 | 1,643 | ||
| Oxford Junction town | 822 | 780 | 752 | ||
| Richland township, including part of Cascade town | 759 | 801 | 745 | ||
| Cascade town (part of) | 152 | 148 | |||
| (For total, see Cascade township, Dubuque County) | |||||
| Rome township, including Olin town | 1,237 | 1,734 | 1,335 | ||
| Olin town | 659 | 692 | 519 | ||
| Scotch Grove township | 653 | 855 | 705 | ||
| Washington township | 544 | 580 | 586 | ||
| Wayne township | 900 | 1,046 | 1,094 | ||
| Wyoming township, including parts of Onslow and Wyoming towns | 1,478 | 1,720 | 865 | 1890 totals-Exclusive of population of Onslow and Wyoming towns. | |
| Onslow town (part of) | 117 | 130 | |||
| Wyoming town (part of) | 721 | 779 | |||
