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.

St. Clair County, MO

Year Starting population Ending population Change Percent change Natural increase Net migration
2000-2001 9,698 9,656 -42 -0.43% -46 4
2001-2002 9,656 9,692 36 0.37% -42 78
2002-2003 9,692 9,656 -36 -0.37% -66 30
2003-2004 9,656 9,711 55 0.57% -39 94
2004-2005 9,711 9,733 22 0.23% -41 63
2005-2006 9,733 9,694 -39 -0.40% -51 12
2006-2007 9,694 9,802 108 1.11% -49 157
2007-2008 9,802 9,757 -45 -0.46% -23 -22
2008-2009 9,757 9,708 -49 -0.50% -30 -19
2009-2010 9,708 9,833 125 1.29% -57 182
2010-2011 9,833 9,718 -115 -1.17% -27 -88
2011-2012 9,718 9,530 -188 -1.93% -59 -129
2012-2013 9,530 9,509 -21 -0.22% -58 37
2013-2014 9,509 9,457 -52 -0.55% -56 4
2014-2015 9,454 9,440 -14 -0.15% -45 31
2015-2016 9,440 9,293 -147 -1.56% -51 -96
2016-2017 9,293 9,385 92 0.99% -31 123
2017-2018 9,385 9,395 10 0.11% -37 47