Overview
The Point-in-Polygon Census Intersection Web Services allow you
to associate census variables with geographic coordinates (latitude and longitude).
The services available on this site allow a user to process a single
coordinate as well as a database of records in batch.
If you encounter any problems or find any cases where the software fails, we would like to hear
about it so we can work to improve the quality of the services. Please
let us know.
Available free services
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Single Census Intersection
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Find the Census block, blockgroup, tract, county, and state for a single geographic point
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Batch Census Intersection
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Find the Census information for a database of geographic points
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Census Intersection Web Service APIs
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Use one of the web service APIs to obtain Census information from your desktop or web applications
Other informative items
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Census Intersection Technical Details
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Details about the reference data sources and Census variables returned
Usage fees and rules
Our services are provided free of charge
to academic, non-profit, and governmental researchers and institutions.
All we ask is that you
cite us in your work
and/or
add a link to us on your website.
Details on how to obtain transaction credits for using our services can be found on the
usage costs page.
Please
contact us
if you need more information.
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