Chittenden, a N. W. county of Vermont, bounded W. by Lake Champlain; area, 517 sq. m.; pop. in 1870, 36,480. It is drained by Lamoille and Onion rivers, which afford valuable water power. Near the lake the surface is generally level, but toward the east it becomes rough and in some places mountainous. Nearly all the land is fertile, suitable for grazing, or capable of producing corn, potatoes, etc. The Vermont Central and the Rutland and Burlington railroads traverse the county. The chief productions in 1870 were 44,426 bushels of wheat, 163,597 of Indian corn, 286,615 of oats, 333,858 of potatoes, 82,629 tons of hav, 1,374,387 lbs. of cheese, 1,761,543 of butter, 87,256 of wool, and 426,726 of maple sugar. There were 4,977 horses, 21,941 milch cows, 8,919 other cattle, 17,041 sheep, and 4,809 swine. There were 2 manufactories of boxes, 7 of cheese, 7 of furniture, 1 of boats, 4 of sashes, doors, and blinds, 3 of woollen goods, 6 flour mills, 6 planing mills, 23 saw mills, 10 manufactories of carriages and wagons, 1 of cotton goods, 3 of iron castings, 2 of machinery, 3 of patent medicines, 5 tanneries, and 4 currying establishments.