All of the following territory in Milwaukee County constitutes the 21st assembly district:
(1) The cities of Oak Creek and South Milwaukee.
(2) That part of the city of Franklin comprising U.S. census tract 187300, blocks 1000, 1001, 1002, 1003, 1004, 1005, 1006, 1009, 1010, 3009, 3010, 3011, 3012, 3013, 3014, 3015, 3026, 3027, 3028, 3029, and 3030.