This is from Treasures of the Past

Adams County, PA

Population

1800	1810	1820	1830	1840	1850	1860	1870
13,172	15,152	19,370	21,379	23,044	25,981	28,006	30,315

Census Records | Vital Records | Family Trees & Communities | Immigration Records | Military Records Directories & Member Lists | Family & Local Histories | Newspapers & Periodicals | Court, Land & Probate | Finding Aids