The expenses of operation and maintenance of the courtroom and offices shall be apportioned equally between the governing authorities of the city of Franklin and the parish of St. Mary in a proportion which the population of the city of Franklin within Ward Three of St. Mary Parish and the population of the unincorporated portions of Ward Three of St. Mary Parish bear to the total population of Ward Three of St. Mary Parish as determined and adjusted from time to time by the decennial United States census. The governing authorities of the city of Franklin, the parish of St. Mary, or either of them, may pay such additional expenses as they may deem proper.
La. R.S. § 13:2488.6