State/County Annual Population Change

Select a state and (optional) county to show annual population change from 2000 to 2018.

Usage/data notes

  • Natural increase is the difference between births and deaths in a year.
  • Net migration is the difference between total change (starting and ending populations) and natural increase. Positive numbers represent migration into the selected area.
  • Pre-2010 figures are intercensal estimates issued October 2011.
  • Visit the MCDC population estimates page for more population-related data applications.

Marion County, MO

Year Starting population Ending population Change Percent change Natural increase Net migration
2000-2001 28,285 28,115 -170 -0.60% 99 -269
2001-2002 28,115 28,067 -48 -0.17% 52 -100
2002-2003 28,067 28,282 215 0.77% 5 210
2003-2004 28,282 28,193 -89 -0.31% 4 -93
2004-2005 28,193 28,309 116 0.41% 29 87
2005-2006 28,309 28,468 159 0.56% 40 119
2006-2007 28,468 28,365 -103 -0.36% 80 -183
2007-2008 28,365 28,550 185 0.65% 95 90
2008-2009 28,550 28,720 170 0.60% 64 106
2009-2010 28,720 28,792 72 0.25% 27 45
2010-2011 28,792 28,796 4 0.01% 59 -55
2011-2012 28,796 28,809 13 0.05% 23 -10
2012-2013 28,809 28,901 92 0.32% 95 -3
2013-2014 28,901 28,920 19 0.07% 67 -48
2014-2015 28,875 28,880 5 0.02% 65 -60
2015-2016 28,880 28,667 -213 -0.74% 31 -244
2016-2017 28,667 28,613 -54 -0.19% 19 -73
2017-2018 28,613 28,592 -21 -0.07% 46 -67