Metadata Summary

Population Estimates for Watersheds

Datasource Information

Dataset TypeGIS/Spatial Data
Name of Data SourcePopulation Estimates for Watersheds
Datasource Abbreviation (dataset)CENSUS_POPESTIMATES
Description of DatasourcePopulation estimates for watersheds derived from available Census block and block group data. Data from 1970 through 2010 is from the Decadal Census. Beginning in 2015, data is from the American Community Survey, updated every 5 years.
Method of Transferring Data to the AtlasManual transfer via HTTP
How Often Data is Transferred to the AtlasEvery 5 years
Date of Most Recent Data Transfer12/31/2021
Disclaimer/Use ConstraintsEstimates are generated by taking the centroids of Census blocks (2000 and 2010) and block groups (1970, 1980 and 1990) and assigning the population of each to the watershed the centroid falls within. Over time, Census geographic boundaries may change, causing centroid locations to shift and the corresponding population to be assigned to a different watershed than the decade prior. Please view these population numbers strictly as estimates and not as exact population totals.

Custodian Information

Agency Name U.S. Department of Commerce
U.S. Census Bureau
Contact NameU.S. Census Bureau - Atlanta Regional Office
Contact Phone(404) 730-3832
Contact Email
Contact URL