问题
i've been asked to generate some demographic reports (crime rates, birth/deaths, etc) based on state and cities for the USA. I have all the demographic data (provided by our client) but can't seem to find any places which have the boundaries (read: LAT/LONG's) of the USA States and their cities.
Our data are Lat/Long points of data (eg. a crime, a birth, etc) and we want to get some mapped reports and also datamine using Sql server (we're using MS Sql 2008, but that shouldn't impact this question).
So .. can anyone direct me to where there are some state and city boundary sources? I know our government has all this information available for free at the US Census Bureau, but i can't seem to understand where it's found and how to digest this info.
I'm assuming that this info will be in the form of lat/long polygons (eg. a shapefile, etc) which i can then import into the DB and mine away.
Can anyone help, please?
回答1:
I can suggest the post http://adventuresdotnet.blogspot.com/2009/06/sql-server-2008-importing-tigerline.html
回答2:
A bit late, but in case anyone stumbles across this like I did:
To get the city boundary layers you navigate to "Download Shapefiles" for the year you're interested in and drop down to the city boundary layer, which is called "Places". (which is not an intuitive enough name for me...)
http://www.census.gov/cgi-bin/geo/shapefiles2011/main
That's the link for 2011's shapefiles.
回答3:
Here's a link to the 2008 TIGER/Line shapefiles, and it sounds like looking at the TIGER/Line Shapefiles FAQ would probably be helpful -- other info at the main page for the 2008 data set.
回答4:
I know the census is difficult to navigate at times. Try going to the National Atlas at nationalatlas.gov also the National map at http://nationalmap.gov/viewer.html
回答5:
I think you are looking for GIS data. For example, I found US Census Bureau TIGER/Line 2007FE Shapefiles Mississippi, United States although I am not sure what you get with the download nor how to exploit the information...
HTH.
回答6:
Was not able to use the tiger.. something web site. pain in the rear. Just download the file at the location below and may be trim according to your necessity.
http://www.nws.noaa.gov/geodata/catalog/national/html/cities.htm
来源：https://stackoverflow.com/questions/352458/tiger-lines-or-shapefiles-of-usa-states-and-cities