| Name | Status | Population census 1990-04-01 | Population census 2000-04-01 | Population census 2010-04-01 | |
|---|---|---|---|---|---|
| Macon | County | 117,206 | 114,690 | 110,768 | 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 | |
|---|---|---|---|---|---|
| Argenta | Village | 935 | 948 | 947 | o |
| Blue Mound | Village | 1,170 | 1,132 | 1,158 | o |
| Boody | Census-Designated Place | ... | ... | 276 | o |
| Decatur | City | 85,424 | 82,061 | 76,122 | o |
| Forsyth | Village | 1,710 | 2,465 | 3,490 | o |
| Harristown | Village | 1,329 | 1,358 | 1,367 | o |
| Long Creek | Village | ... | 1,424 | 1,328 | o |
| Macon | City | 1,323 | 1,278 | 1,138 | o |
| Maroa | City | 1,594 | 1,698 | 1,801 | o |
| Mount Zion | Village | 4,520 | 4,880 | 5,833 | o |
| Niantic | Village | 647 | 736 | 707 | o |
| Oreana | Village | 847 | 890 | 875 | o |
| Warrensburg | Village | 1,273 | 1,287 | 1,210 | o |
Source: US Census Bureau (web).
2000 and 2010 population of incorporated places in the boundaries of 2010.
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