http://www.worldmag.com/world/issue/03-20-04/national_6.asp
Jehovah's Witnesses are now Poland's largest non-Catholic religious group, with 124,300 members, according to data released by the country's main office of statistics. The Catholic portion of Poland's 38.6 million population slipped from 95 percent to 90 percent during the 1990s, the office noted. About 79,000 Poles belong to the country's largest Protestant denomination, the Evangelical Augsburg (Lutheran) Church. Two "Old Catholic" breakaway groups account for 46,000 members between them.