Ala. Code § 36-5-11

All personal sureties on official bonds must be residents of the state, and the aggregate value of their property, real and personal, not exempt from debts and other liabilities and in excess of their debts and liabilities must equal the penalty of the bond, and such property must be within the state. If the duties of the office of the principal are limited to a single county, the sureties must be residents of that county, and their property must be therein situated.