SAINT CROIX COUNTY, situated in the northwesterly part of Wisconsin, with Mississippi river on the southwest, and St. Croix river and lake on the west. Area, -------- square miles. Seat of justice, St. Croix. Pop. in 1850, 624. (Fanning's, 1853)

ST. CROIX, a county in the N. W. part of, Wisconsin, bordering on Minnesota, contains an area of about 750 square miles. It is bounded on the W. by St. Croix river and lake, which separate it from Minnesota Territory, and drained by Willow and Rush rivers. The surface is mostly overspread with forests of pine. The county is copiously supplied with waterpower. Indian corn, oats, and barley are the staples. In 1850 this county produced 700 bushels of oats; 1100 of corn; 750 of barley, and 1850 pounds of butter. It contained 1 newspaper office, and 19 pupils attending a school. Capital, Hudson. Population, 624. (Baldwin's New and Complete Gazetteer of the United States..., 1854)

ST. CROIX, County, is bounded on the north by La Pointe, on the east and south by Chippewa, on the southwest and west by the boundary between the State and Minnesota. The county seat is at Hudson, formerly Willow river, at the mouth of a, stream of the same name, emptying into Lake St. Croix. It, was set off from Crawford, and organized January 29, 1850; was attached to Crawford for judicial purposes April 10, 1843, and again fully organized February 26,1848. The boundaries were somewhat changed March 16, 1849. It is attached to, the third congressional district, to the sixth judicial circuit, and to the nineteenth senate district, and, with La Pointe, sends one member to the assembly. It is one of the largest counties in the State, being 130 miles in length, and 50 in width; presents to the agriculturist, in fertility of soil, well watered and well wooded farms, in the means of access to. market through Lake St. Croix and the Mississippi, and in the perfect healthiness and salubrity of climate, advantages, which are to be found combined in but few places in the West. The surface is generally undulating north of the Falls, of St. Croix. It is mostly timbered with maple and other hard woods, while south of the Falls is a due proportion of prairie and openings. But little attention has yet been paid to the pursuits of agriculture, and the manufactories are confined for the present to pine lumber. It is well watered with fine streams and beautiful lakes. The principal streams are Willow, Kinnickinnic, Vermillion, Isabelle, and Rush river. Population in 1846 was 1,419; in 1847, 1,674; in 1850, 624; with 181 dwellings, 4 farms, and 2 manufactories. In 1846 the census returns included all of the present Territory of Minnesota, east of the Wisconsin river, also the present county of La Pointe. In 1847 it included the same, excepting the county of La Pointe. This is the reason why there appears to be a decrease in the population from 1847 to 1850, County Officers : Judge, S. S. N. Fuller; Sheriff, A. S.Youle; Clerk of Court, Joseph Bowman; District Attorney, Benjamin Allen; Register, William R. Anderson; Clerk of Board of Supervisors, Charles R. Knight; Treasurer, James Bailey; Surveyor, William R. Anderson; Coroner, Jonathan Bailey. (John Warren Hunt, Wisconsin Gazetteer..., Madison, 1853)

Total Population 1850
Total Population 1860
Free Black Population 1860
Free Black Population 1850
Presidential Election Result 1856
Presidential Election Result 1860
Presidential Election Result 1864
Unconditional Union (1864)
Saint Croix