According to Zagat's newest guide the people of Philadelphia are the most generous (of metro areas) people in the USA tipping on average 19.6%.
Anyone in Philly got a room to rent!?!
According to Zagat - or at least the 5,507 local diners who reported on their preferences and habits to Zagat - people in the Philadelphia area leave an average tip of 19.6 percent.
New Yorkers leave 19 percent - the national average - while folks in L.A. leave 18.4.
Last year, Denver was No. 1, adding 19.5 percent to bills for gratuities. Philadelphia and Detroit tied for second, at 19.4 percent.