In order to determine where people stay put in your home state, Stacker compiled a list of counties with the most born-and-bred residents in Missouri using data from the Census Bureau. Clinton County– Population: 21,414– Born in Missouri: 15,514 (72.4% of population)– Born in a different state: 5,443 (25.4% of population)– Born in U.S. territories: 230 (1.1% of population)– Born in another country: 227 (1.1% of population)49. Carter County– Population: 5,297– Born in Missouri: 3,847 (72.6% of population)– Born in a different state: 1,313 (24.8% of population)– Born in U.S. territories: 57 (1.1% of population)– Born in another country: 80 (1.5% of population)48. Washington County– Population: 23,470– Born in Missouri: 19,641 (83.7% of population)– Born in a different state: 3,586 (15.3% of population)– Born in U.S. territories: 61 (0.3% of population)– Born in another country: 182 (0.8% of population)4. Osage County– Population: 13,402– Born in Missouri: 11,814 (88.2% of population)– Born in a different state: 1,530 (11.4% of population)– Born in U.S. territories: 13 (0.1% of population)– Born in another country: 45 (0.3% of population)