Statewide Pennsylvania Census
records that exist are 1790
(fragment, see below), 1900
There are Industry
Schedules 1850, 1860, 1870 and 1880. The Mortality Schedules
for the years 1850, 1860, 1870 and 1880. The Union Veterans Schedules
exist for 1890.
In 1790 the first federal census of Pennsylvania was taken. Most Federal census records from that year and subsequent years for the state are still available. Copies are available on microfilm in a variety of locations, including: National Archives Mid-Atlantic Region, Pennsylvania State Archives, Historical Society of Pennsylvania, Pennsylvania State Library, Carnegie Library of Pittsburgh. Other libraries also have copies available. In 1870 there were two census enumerations taken in the city of Philadelphia. The second one listed street addresses.
The 1800 census has 3 published indexes, while the 1810 census has 2 available.
There are also two indexes for the 1850 census, and one of them is organized according to county name. Census records taken for Allegheny City and Pittsburgh from 1850 to 1880 each have all-name indexes available. Those indexes can be found in Pittsburgh, at the Carnegie Library. The index for Philadelphia County for the 1910 Miracode is not with the index for the other parts of the commonwealth.
The Pennsylvania State Archives now holds microfilms of the original 1880 census records. State copies of 1840 to 1870 census records no longer exist. However, some county records for those times are still extant. The National Archives Mid-Atlantic Region and the Pennsylvania State Library each have microfilmed copies of mortality and non-population records for the 1850 to 1880 censuses.