Such an authority may be created by the legislative delegation of such county adopting a resolution declaring that there is need for such a housing authority to function in such county. Such declaration shall be made by such legislative delegation for such county in the same manner and subject to the same conditions as the declaration of a city council required by Section 31-3-320 for the purpose of establishing a housing authority of a city except that the petition referred to in Section 31-3-320 shall be signed by twenty-five residents of such county.
S.C. Code § 31-3-720