Gregory said: Cincinnati's homeless take up costly space in the Hamilton County jail - with the average homeless inmate spending more time in jail than in homeless shelters. At $65 a night, jailing homeless suspects cost taxpayers as much as $3 million a year. Those numbers are leading city and county leaders to question whether the increasingly overcrowded jail has become the homeless shelter of last resort. Added: August 16, 2009 at 6:04PM EDT