Using QGIS, how do I find county of an associated zipcode? I have zipcode for each point, however, I do not have a street address. I am hoping to aggregate my data to the county level using the zipcodes.
I would do a spatial join between your point data and US Counties.
If you do not have US Counties, you can download the 2014 Counties here.
Then, add both layers into your map.
Click Vector -> Data Management Tools -> Join attributes by location Set the target vector layer to your points. Set the join vector layer to your counties. Choose to take attributes of first located feature. Rename your output shapefile. Select to keep all records (so you don't lose any records). Click Ok.
Once complete, your point output will have the county information added to it.
Keep in mind:
- The projections of your data
- All fields from the counties will come over, but you can delete them once the process is completed
- As reference, here is a tutorial doing a very similar process, except it chooses to aggregate a field rather than just joining the data
Very simple solution to this. sign up here: https://www.mashape.com/vanitysoft/boundaries-io
The results are GeoJson to easily integrate into repositories, or anything that takes GeoJson like googleMap... used http://geojsonlint.com/ to cut and paste my GeoJson Results from the API call above to display the below image...Hope this helps!
image returns below: