All of the following territory constitutes the 30th assembly district:
(1) PIERCE COUNTY. That part of Pierce County consisting of all of the following:
(a) The towns of Clifton and River Falls.
(b) That part of the city of River Falls located in the county.
(2) ST. CROIX COUNTY. That part of St. Croix County consisting of all of the following:
(a) The towns of Hudson, Kinnickinnic, St. Joseph, and Troy.
(b) The village of North Hudson.
(c) The city of Hudson.
(d) That part of the city of River Falls located in the county.