| Natural Change | 31 |
| equals Births | 2,434 |
| less Deaths | 2,403 |
| Net Migration | -1,154 |
| equals net International Migration | 27 |
| plus net Domestic Migration | -1,181 |
| Table 1. Population | ||||||||||
| Area Name | GeoID | Item | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | Chg 10-15 | %Chg 10-15 |
| Marion County, IL | 17121 | P0000001 | 39,447 | 39,004 | 38,913 | 38,588 | 38,483 | 38,339 | -1,108 | -2.81 |
| Table 2. Births | ||||||||||
| Area Name | GeoID | Item | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | Sum11-15 | |
| Marion County, IL | 17121 | B0000001 | 488 | 490 | 502 | 474 | 488 | 480 | 2,434 | |
| Table 3. Deaths | ||||||||||
| Area Name | GeoID | Item | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | Sum11-15 | |
| Marion County, IL | 17121 | D0000001 | 660 | 553 | 493 | 497 | 457 | 403 | 2,403 | |
| Table 4. Natural Change | ||||||||||
| Area Name | GeoID | Item | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | Sum11-15 | |
| Marion County, IL | 17121 | NC000001 | -172 | -63 | 9 | -23 | 31 | 77 | 31 | |
| Table 5. International Migration | ||||||||||
| Area Name | GeoID | Item | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | Sum11-15 | |
| Marion County, IL | 17121 | MI000001 | 4 | 5 | 5 | 5 | 6 | 6 | 27 | |
| Table 6. Domestic Migration | ||||||||||
| Area Name | GeoID | Item | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | Sum11-15 | |
| Marion County, IL | 17121 | MD000001 | 232 | -449 | -107 | -310 | -111 | -204 | -1,181 | |
| Table 7. Net Migration | ||||||||||
| Area Name | GeoID | Item | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | Sum11-15 | |
| Marion County, IL | 17121 | MN000001 | 236 | -444 | -102 | -305 | -105 | -198 | -1,154 | |
| Table 8. Group Quarters | ||||||||||
| Area Name | GeoID | Item | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | Chg10-15 | %Chg 10-15 |
| Marion County, IL | 17121 | GQ000001 | 758 | 758 | 758 | 758 | 758 | 758 | 0 | 0.00 |