Mo. Rev. Stat. § 52.269
1. In all counties, except first classification counties having a charter form of government and first classification counties not having a charter form of government and not containing any part of a city with a population of three hundred thousand or more, the county collector shall receive an annual salary which shall be paid in equal monthly installments by the county. The salary shall be computed on an assessed valuation basis as provided in this subsection. The assessed valuation factor shall be the amount as shown for the year next preceding the annual salary computation. A county collector subject to the provisions of this section shall not receive an annual compensation less than the total compensation being received by the county collector in that county for services rendered or performed for the period beginning March 1, 1987, and ending February 29, 1988. The county collector shall receive the same percentage adjustments provided by the county salary commissions for county officers in that county pursuant to section 50.333, RSMo. The provisions of this section shall not permit or require a reduction in the amount of compensation being paid for the office of county collector on January 1, 1997, or less than the total compensation being received for the services rendered or performed for the period beginning March 1, 1987, and ending February 29, 1988. The salary shall be computed on the basis of the following schedule:
Assessed Valuation Salary
$ 18,000,000 to 40,999,999 $29,000
41,000,000 to 53,999,999 30,000
54,000,000 to 65,999,999 32,000
66,000,000 to 85,999,999 34,000
86,000,000 to 99,999,999 36,000
100,000,000 to 130,999,999 38,000
131,000,000 to 159,999,999 40,000
160,000,000 to 189,999,999 41,000
190,000,000 to 249,999,999 41,500
250,000,000 to 299,999,999 43,000
300,000,000 or more 45,000
(L. 1987 S.B. 65, et al., A.L. 1988 S.B. 431, A.L. 1990 H.B. 1452, A.L. 1993 S.B. 250, A.L. 1997 S.B. 11)
CROSS REFERENCE:
Compensation in certain first class, noncharter counties, RSMo 50.343