Presbyterians of different churches in the United States in 1906 numbered 1,830,555; of this total 322,542 were in Pennsylvania, where there were 248,335 members of the Presbyterian Church in the United States of America (the Northern Church), being more than one-fifth of its total membership; 56,587 members of the United Presbyterian Church of North America, being more than two-fifths of its total membership; 2709 members of the Synod of the Reformed Presbyterian Church of North America, three-tenths of its total membership; the entire membership of the Reformed Presbyterian Church in the United States and Canada (440), 3150 members of the Welsh Calvinistic Methodist Church, nearly one-fourth of its total membership; and 2065 members of the Reformed Presbyterian Church in North America, general synod, about five-ninths of its total membership. The strength of the Church in Pennsylvania is largely due to the Scotch-Irish settlements in that state.
From 1890 to 1900 the actual number rose by one-third (from 30,108 to 43,684), the proportion to the rest of those sentenced from one-fifth to one-fourth; while in 1905 the actual number rose to 67,944, being a considerable proportionate rise also.
The arrears increase every year; one-fifth of the inhabitants have left their houses; cattle are disappearing.
But only one-fifth of the whole population is Moslem.
In 1906 there were 1,742,873 communicants of different religious denominations, over one-third being Roman Catholics and about one-fifth Methodists.