This datalayer is a polygon coverage which will display Massachusetts towns and associated data concerning Census 2000 anticipated and actual response rates.
The statistical data contained here was collected as part of the U.S. Census of Population and Housing and originally published as part of the 1990 Census. Therefore the currentness reference date for the tabular data here is April 1, 1990.
For more information on the definitions and enumeration process please read the "Supplemental Information" and "Attribute Accuracy Statement" (under Data Quality) sections which follow. This layer was derived from the Massachusetts Electronic Atlas database published by the Harvard Map Collection in 2001.
The Massachusetts Electronic Atlas (MEA) was a collaborative project to provides access, via the Internet, to data about the Commonwealth, its thirteen regional planning agency districts and 351 cities and towns. This dataset is now only available via The Harvard Geospatial Library.