The 2018 PDB contains select operational, demographic, and socio-economic statistics from the 2010 Census and the 2012-2016 5-year ACS. Data are available at both the tract and block group levels.

^{We recommend managing the files in a statistical software application such as R or SAS, as Excel may truncate columns or rows. We also urge users to verify that the downloaded file contains the indicated number of columns and rows: Block Group - [pdb2018bgv4_us.csv - 329222 KB, 220357 rows x 344 columns] Tract - [pdb2018trv4_us.csv - 144605 KB, 74024 rows x 454 columns]. If the number of rows and columns do not align with these counts, verify that the download has not been interrupted or corrupted. If so, we recommend you try to re-download the file from a different web browser.}

2018 Tract and Block Group APIs:

https://api.census.gov/data/2018/pdb.html

^{Statistics downloaded from American FactFinder or data.census.gov received clearances from the Disclosure Review Board before being posted. No clearance number is required at this time for such information products. When presenting packages to the DRB that include such data, their provenance must be documented to the satisfaction of the DRB.}

^{2010 Census operational statistics were cleared by the DRB on 5/21/2012.}