St. Charles County remains one of the fastest growing counties in Missouri – outstripping other adjacent Missouri counties since 2010, according to recently released U.S. Census estimates.
The county’s population was estimated at 379,493 as of July 1, 2014, up 19,008 people, a 5.3 percent increase in population from April 1, 2010, according to Census Bureau estimates. Those estimates also suggest that the county gained 5,593 people since 2013.
St. Charles County is the third largest county in the state, behind St. Louis and Jackson counties but ahead of the city of St. Louis’ population, estimated now at 317,365. Its percentage rate of growth is tied for fourth in the state with Clay County for the April 2010-July 2014 period.
St. Louis County’s population – up over the million mark at 1,001,876 – still lags significantly behind St. Charles County. Nearby Lincoln County experienced a population increase of 3.2 percent to 54,349 residents and Warren County grew by 2.3 percent, but Franklin County remained essentially flat at 0.6 percent.
The St. Louis region, which includes St. Charles, St. Louis, Jefferson and Franklin counties and the city of St. Louis in Missouri and Madison, Monroe and St. Clair counties in Illinois, grew less than 1 percent during this time period to 2,806, 207.