| Name | Status | Population census 1990-04-01 | Population census 2000-04-01 | Population census 2010-04-01 | |
|---|---|---|---|---|---|
| Sangamon | County | 178,386 | 188,974 | 197,465 | o |
| Illinois | Federal State | 11,430,602 | 12,419,927 | 12,830,632 |
| Name | Status | Population census 1990-04-01 | Population census 2000-04-01 | Population census 2010-04-01 | |
|---|---|---|---|---|---|
| Auburn | City | 3,786 | 4,461 | 4,771 | o |
| Berlin | Village | ... | 154 | 180 | o |
| Buffalo | Village | 503 | 498 | 503 | o |
| Cantrall | Village | ... | 146 | 139 | o |
| Chatham | Village | 6,008 | 8,614 | 11,500 | o |
| Clear Lake | Village | 193 | 263 | 229 | o |
| Curran | Village | ... | 247 | 212 | o |
| Dawson | Village | ... | 520 | 509 | o |
| Divernon | Village | 1,160 | 1,197 | 1,172 | o |
| Grandview | Village | 1,637 | 1,534 | 1,441 | o |
| Illiopolis | Village | 903 | 926 | 891 | o |
| Jerome | Village | ... | 1,769 | 1,656 | o |
| Leland Grove | City | 1,682 | 1,570 | 1,503 | o |
| Loami | Village | 803 | 812 | 745 | o |
| Mechanicsburg | Village | ... | 464 | 590 | o |
| New Berlin | Village | 785 | 1,052 | 1,346 | o |
| Pawnee | Village | 2,379 | 2,635 | 2,739 | o |
| Pleasant Plains | Village | 760 | 772 | 802 | o |
| Riverton | Village | 2,735 | 3,114 | 3,455 | o |
| Rochester | Village | 2,778 | 2,875 | 3,689 | o |
| Sherman | Village | 2,027 | 2,885 | 4,148 | o |
| Southern View | Village | ... | 1,745 | 1,642 | o |
| Spaulding | Village | ... | 647 | 873 | o |
| Springfield | City | 107,265 | 112,514 | 116,250 | o |
| Thayer | Village | 730 | 771 | 693 | o |
| Williamsville | Village | 1,108 | 1,438 | 1,476 | o |
Source: US Census Bureau (web).
2000 and 2010 population of incorporated places in the boundaries of 2010.
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