A county has power to:
(1) except as provided in 7-5-103 (2)(d)(iv) and 7-5-121 (2)(c)(iv), sue and be sued;
(2) purchase and hold lands within its limits;
(3) make contracts and purchase and hold personal property that may be necessary to the exercise of its powers;
(4) make orders for the disposition or use of its property that the interests of its inhabitants require;
(5) subject to 15-10-420, levy and collect taxes for public or governmental purposes, as described in 7-6-2527, under its exclusive jurisdiction unless prohibited by law.