  hudson is a city in st. croix county, wisconsin, united states. as of the 2010 united states census, its population was 12,719. it is part of the minneapolisâst. paul metropolitan statistical area (msa). the village of north hudson is located directly to the north of hudson. ==history== [[file:2009-0620-hudson-octagon.jpg|thumb|left|250px|the octagon house museum, listed on the national register of historic places, was built in
1840_establishments_in_the_United_States Cities_in_St._Croix_County,_Wisconsin Cities_in_Wisconsin County_seats_in_Wisconsin Populated_places_established_in_1840