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Census Block Conversions API

Census Block Method Call

Description
This API returns the US Census Bureau Census Block number (aka the 15 character FIPS Code) given a passed Latitude and Longitude. The API also returns the US State and County name associated with the Block.
API URL
http://data.fcc.gov/api/block/find?latitude=[latitude]&longitude=[longitude]&showall=[true/false]
http://data.fcc.gov/api/block/[censusYear]/find?latitude=[latitude]&longitude=[longitude]&showall=[true/false]
Example Request
http://data.fcc.gov/api/block/find?format=json&latitude=28.35975&longitude=-81.421988&showall=true
http://data.fcc.gov/api/block/2010/find?latitude=40.0&longitude=-85
Parameter Type Description
latitude required double

Latitude of a location.

longitude required double

Longitude of a location.

censusYear optional integer

Returns results based on census year.

Valid values: 2000, 2009, 2010 (default)

format optional string

Format for the returned results.

Valid values: XML (default), JSON, JSONP

showall optional boolean

If the coordinate lies on the boundary of multiple geographies, for a complete list use showall=true.

Valid values: true, false

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