Top Ten Missouri Counties Ranked by Population Growth Rate, 1990 to 2020 SCENARIO L Rank County Percent Change 1 Christian 95 2 St. Charles 85 3 Lincoln 72 4 Warren 70 5 Camden 53 6 Platte 51 7 Stone 51 8 Cass 51 9 Taney 46 10 Pulaski 40 SCENARIO R Rank County Percent Change 1 Christian 119 2 St. Charles 80 3 Platte 69 4 Lincoln 68 5 Stone 66 6 Warren 63 7 Cass 61 8 Johnson 52 9 Taney 51 10 Jefferson 48 SCENARIO Z Rank County Percent Change 1 Pulaski 38 2 Johnson 32 3 St. Charles 27 4 Pemiscot 27 5 Boone 25 6 Warren 23 7 Lincoln 22 8 Jefferson 21 9 St. Louis City 20 10 Webster 19 Source: USDC, Bureau of the Census Missouri Office of Administration