Baltimore City lost 5,000 residents last year, according to the latest estimate of the U.S. Census Bureau.

A report issued today listing the population of the country?s 25 largest cities estimated Baltimore had a population of 631,366 as of July 1, 2006 ? 5,000 fewer than in 2005. The loss, representing less than 1 percent of the city?s population, equals roughly 400 people per month.