Ala. Const. art. VI, § 143

The district court shall be a court of limited jurisdiction and shall exercise uniform original jurisdiction in such cases, and within such geographical boundaries, as shall be prescribed by law, provided that the district court shall hold court in each county seat and at such other places as prescribed by law. The district court shall have jurisdiction of all cases arising under ordinances of municipalities in which there is no municipal court and shall hold court in each incorporated municipality of a population of 1000 or more where there is no municipal court at places prescribed by law.