Census Intersection Technical Details

Overview

Point-in-polygon intersection is the process of assigning an input coordinate the values from an areal unit within which it resides. The Texas A&M Point-in-Polygon Census Intersection Service will assign Census 1990, 2000, or 2010 geographic variables to input coordinates (latitude and longitude pairs).

Version 5.0.0 - March 25 2020

The Texas A&M Census Intersection Service stores the Census 1990, 2000, and 2010 tabulation block, block group, and tract information in a SQL Server Spatial database along with other Census data as available by year. Census values are returned by performing a spatial intersect using the input coordinates.

Known Bugs

The following list contains the set of known bugs for this release of the Census Intersection Service. We are constantly working to improve the service and will be addressing these bugs in future releases. If you discover or suspect another bug, please report it.