(a) Except as provided by Subsection (b) of this section, the county clerk shall give notice of a hearing required by Section 78.014 of this code by publishing the notice two or more times, with an interval of seven or more days between the first and second publication, in a newspaper of general circulation in each county in which the proposed district will be located.
(b) If a county in which a proposed district will be located does not have a newspaper of general circulation, the county clerk shall give notice by posting the notice for two weeks or longer in four public places within the part of the county that is located in the proposed district.

(c) Notice required by this section must contain a statement of:
(1) the purpose of the hearing;
(2) the date, time, and place of the hearing; and
(3) the boundaries of the district, which may be defined by a general description that need not be a full legal description of the district.