Relationship files are provided as a tool to help you compare the universe of Census geographies from the 1990, 2000 and 2010 Censuses. See http://www.census.gov/geo/maps-data/data/relationship.html
Since some fips code change between to census campaign due to renaming or stuff like that, I was thinking of trying to use GNIS codes (hoping they don't change as much). It says here http://www.census.gov/developers/geo/ : 'Every query must include a geography, and this API supports both FIPS and GNIS geography codes.'. However I was not able to find an example of url that use it so I don't know what the... more »
In order to draw a tract polygon, I need a list of lat/longs that define each tract. (For example, a tract that is exactly a square would have four lat/long points that define it.)
Is there an established way to get the lat/long of a census tract?
Working on our first mobile application in high-end gated communities. Anybody have any experience with simply obtaining accurate gated community numbers nationally? or locally?
I want to retrieve tract level data for all of New York City. I know I can do this using five different calls, one for each of the five counties. I would like to do this with a single call. I have read that the IN clause does not support this (&in=state:36+county:005,061,047,081,085 only returns records for 005). Perhaps this could be done using a place but this is currently not a supported geographic hierarchy.
eg. The following coordinates are for the same street address (55 Church Street zip code 07505), but one set points to the building and the other to the street.
lat : 40.9170109 long: -74.1702248
lat:... more »