Los Angeles ? A report released Thursday that provided new details on the region’s homeless population prompted Mayor Antonio Villaraigosa to call the nation’s second-largest city the nation’s “capital of homelessness.”

The report by the Los Angeles Homeless Services Authority estimated that 82,291 people were homeless in Los Angeles County on any given night in 2005, with about 48,103 of the county’s homeless living within Los Angeles’ city limits.

The estimates mark the first attempt to gather detailed data on the homeless.

The study also reported that California’s estimated homeless population of 195,367 is the highest in the nation. Forty-six percent of the state’s homeless population is in Los Angeles County, according to researchers, who determined that one of every 110 people in the county are homeless on any given night.

“This is the capital of homelessness in the United States of America. It dwarfs the homeless problem anywhere in the state, and the city of Los Angeles is ground zero for it,” Villaraigosa said.