Missouri Revised Statutes Title VI. County, Township and Political Subdivision Government § 67.2510. Alternative procedure for establishment of a district

(1) Any county with a charter form of government and with more than two hundred fifty thousand but less than three hundred fifty thousand inhabitants;

(2) Any county of the first classification with more than ninety-three thousand eight hundred but fewer than ninety-three thousand nine hundred inhabitants;

(3) Any county of the first classification with more than one hundred eighty-four thousand but fewer than one hundred eighty-eight thousand inhabitants;

(4) Any county with a charter form of government and with more than six hundred thousand but fewer than seven hundred thousand inhabitants;

(5) Any county of the first classification with more than one hundred thirty-five thousand four hundred but fewer than one hundred thirty-five thousand five hundred inhabitants;

(6) Any county of the first classification with more than one hundred four thousand six hundred but fewer than one hundred four thousand seven hundred inhabitants;

(7) Any county of the first classification with more than eighty-three thousand but fewer than ninety-two thousand inhabitants and with a home rule city with more than seventy-six thousand but fewer than ninety-one thousand inhabitants as the county seat.