Mo. Rev. Stat. § 72.150

72.150. Certain adjoining municipalities may consolidate — certain cities to comply with boundary changes law — consolidation of certain cities, towns, or villages in counties of the first, second, or third classification. — 1. When two or more cities, towns or villages in this state adjoining and contiguous to each other in the same or adjoining county or two or more cities, towns or villages located in a county of the second classification having a population of at least forty-seven thousand but not more than forty-nine thousand which are not adjoining and contiguous to each other but whose combined territory when combined will be contiguous shall be desirous of being consolidated, it shall be lawful for them to consolidate under one government of the classification under which any of them was organized or the classification provided for the consolidated population, in the manner and subject to the provisions prescribed in sections 72.150 to 72.220 . Any cities, towns or villages within any county with a charter form of government where fifty or more cities, towns and villages have been incorporated shall consolidate pursuant to the provisions of section 72.420 .

2. When two or more cities, towns or villages located in a county of the first classification or a county of the second classification that have entered into one or more intergovernmental agreements related to municipal services and are separated by a distance of not more than one mile and are connected by at least two publicly maintained rights-of-way shall be desirous of being consolidated, it shall be lawful for them to consolidate under one government of the classification under which any of them was organized or the classification provided for the consolidated population, in the manner and subject to the provisions prescribed in sections 72.150 to 72.220 .

3. When two or more cities, towns or villages located in any county of the third classification are separated by a distance of not more than one and one-half miles and are desirous of being consolidated, it shall be lawful for them to consolidate under one government of the classification under which any of them was organized or the classification provided for the consolidated population, in the manner and subject to the provisions prescribed in sections 72.150 to 72.220 .

(RSMo 1939 § 7829, A.L. 1961 p. 193, A.L. 1963 p. 128, A.L. 1976 H.B. 1295, A.L. 1989 H.B. 487, A.L. 1992 S.B. 571, A.L. 1995 H.B. 446, A.L. 2016 H.B. 1684) Prior revisions: 1929 § 7684; 1919 § 9123; 1909 § 9948