In the event any political subdivision or part thereof should be omitted in the description of the congressional districts, the political subdivision or part thereof shall be included as a part of the congressional district which completely surrounds it. Should any omitted political subdivision or part thereof be not completely surrounded by one congressional district, it shall become a part of that congressional district to which it is contiguous, or if there are two or more such contiguous districts, it shall become a part of that congressional district contiguous thereto which has the least population.
25 P.S. § 3596.303