Mo. Rev. Stat. § 80.575: Election not required, when.

The county governing body of each county shall have the power to disincorporate any town or village which they may have incorporated, upon petition of three-fourths of the voters of such town or village, without an election in such town or village, provided that the petition requests disincorporation without an election, and provided that the population of such town or village is less than one hundred.