Anoka, an E. county of Minnesota, hounded S. W. by the Mississippi river, and intersected by Rum river, one of its branches; area, 420 sq. m.; pop. in 1870, 3,940. The productions in 1870 were 27,390 bushels of wheat, 17,715 of oats, 36,838 of corn, 15,872 of potatoes, and 5,246 lbs. of wool, and 11,200,000 feet of lumber was sawed. Capital, Anoka, at the mouth of Rum river, 22 m. N. N. W. of St. Paul.