Ogdexsburg, a city of St. Lawrence co., New York, port of entry of the district of Os-wegatchie, situated on the St. Lawrence river, at the mouth of the Oswegatchio, 72 m. below Lake Ontario and 4 m. above the rapids, at the terminus of the Rome, Watertown, and Og-densburg railroad, and of a division of the Vermont Central railroad, 175 m. N. W. of Albany; pop. in 1860, 7,409; in 1870, 10,076, of whom 4,072 were foreigners; in 1874, 11,-340. It is regularly laid out and handsomely built, and the streets are lined with maples, from which circumstance it derives the title of " Maple City." It is lighted with gas, and is supplied with water on the Holly plan by 14 m. of water mains. The public buildings are the town house, eight large brick and stone school houses, six churches, and the edifice (costing $275,000) occupied by the custom house, post office, and the United States court. Three ferry steamers run to Prescott, Canada, on the opposite bank of the St. Lawrence, and there is a line of 23 steamers to Chicago. The commerce of Ogdensburg is important.

The receipts of grain amount to about 5,000,000 bushels annually, and of lumber to about 75,000,000 feet. " The value of exports to foreign ports (Canada) for the year ending June 30, 1874, was $741,497; of imports from Canada, $1,977,751. The entrances in the foreign trade were 434, of 88,380 tons; clearances, 434, of 88,856 tons; entrances in the coastwise trade, 620, of 176,957 tons; clearances, 620, of 177,897 tons; belonging in the district, 35 vessels, of 3,636 tons. The water power is excellent, and is employed in the production of flour, rough and planed lumber, shingles, and staves. About 300,000 barrels of flour and 10,000,000 feet of lumber are annually manufactured. There are three private banks, a public school library of 3,500 volumes, and three newspapers. The public schools are graded and have an average attendance of 1,020 pupils. Ogdensburg is the residence of a Roman Catholic bishop. It was founded in 1749, incorporated as a village in 1817, and as a city in 1868.