Contents: Population
The population development of Decatur.
| Name | Status | State(s) | Population Census 1990-04-01 | Population Census 2000-04-01 | Population Census 2010-04-01 | Population Estimate 2015-07-01 | |
|---|---|---|---|---|---|---|---|
| Decatur | Metropolitan Statistical Area | IL | 117,206 | 114,690 | 110,768 | 107,303 |
Source: U.S. Census Bureau (web).
Statistical areas according to the definition of 2013.