All judgments and decrees rendered on any bonds or other written evidence of debt of any county, special road and bridge districts or any county for the use and benefit of any special road and bridge districts or incorporated city or town or taxing district bear interest at the rate of 5 percent a year. When a judgment or decree is rendered on a bond or other written evidence of debt providing for a lesser rate of interest, the judgment or decree bears interest at the rate specified in such bond or other written evidence of debt.
Fla. Stat. § 55.04