A type of geographic area / administrative boundary.

learn more… | top users | synonyms

2
votes
1answer
58 views

Georeferencing US County names in CartoDB

I have a massive file with county-level data from the 19th century. I'd like to georeference it, but I'm not sure what I need to do, as CartoDB isn't recognizing the county names through the 'Admin. ...
0
votes
2answers
60 views

Geocoding - looking to identify county from list of zipcodes

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 ...
1
vote
2answers
59 views

Is there a publicly available dataset that I can use that links 9 digit zipcodes with counties and states?

I have a dataset which has 9 digit zipcodes and I am trying to match these to the state and county FIPS codes. Is there a publicly available dataset that will allow me to do this?
1
vote
1answer
45 views

Mapping Disease Incidence in the Northeast in R

I am trying to map disease incidence by county in states in northeastern states in the US. I have the shapefiles for the entire US but I am having a difficult time deleting the states that I do not ...
0
votes
2answers
26 views

Combine Community Layer with County Layer in ArcMap?

I have a County shapefile that I am trying to combine with an updated community or jurisdiction shapefile. I have tried Unioin, Merge, and Spatial Join, but am not getting the desired results. The end ...
0
votes
0answers
137 views

Determining epsilon for county polyline simplification via Ramer–Douglas–Peucker

I have a proprietary shapefile with all the counties in the US, and some metadata. I need to export it to geojson. The points are in lat/long decimal degrees. I will render the county shapes on an ...
1
vote
0answers
64 views

England - Non-metropolitan counties and the ONSPD (Postcode data)

I have a large amount of data records which have a postcode on them that I'm in the process of trying to visualise on an England map. The first map view I'm doing is naturally regional view. This is ...
1
vote
1answer
203 views

How to georeference 1990 U.S. county names / FIPS for CartoDB?

I have a data table with columns of county and state names as well as FIPS codes for 1990 U.S. counties. I cannot easily merge shape data into the data (e.g. the Census ones), but CartoDB does not ...
2
votes
0answers
58 views

does the census bureau provide clipped / water-bounded files as nice as certain cities?

this question says they do but when i compare what i can find in the cartographic boundary files section of the census bureau's gis page, they don't look as good as certain shapefiles provided by the ...
2
votes
1answer
159 views

How to detetmine county of GPS coordinate?

I have a SHP file that contains all counties in the USA. I also have roughly 100 million GPS locations. I need to tally the number of GPS locations per county. A linear search through the counties ...
0
votes
2answers
158 views

Looking for lat/lon for county seats

I'm currently designing a map for methamphetamine labs in my state. Ideally what I need is the center lat/lon coordinates for each county in my state or the lat/lon coordinates for each county seat. ...
1
vote
0answers
171 views

COUNTY WebService API lookup from valid street address

I am looking for a solid WebService API that will allow me to submit an http request with a pre-validated US Street/City?state/Zip Address and return COUNTY in xml or json about 200 times per work ...
1
vote
5answers
290 views

Searching free data source: Shapes of counties worldwide

I want to create a map with openlayers, that contains a vector layer, with all "counties" of all countries of the world. "County" doesn't mean any strict political term here. I just want to split the ...
0
votes
2answers
1k views

How to get a list of OSM relations (id numbers) of cities and countries only?

I want to get OSM polygon shapes (GEOJson or WKT) of countries and cities only. I know that it is called a "relation" in OSM and each relation has its own id (New York is 175905, for example). How may ...
0
votes
1answer
104 views

Census Shapefiles Fit to Land

I'm looking for an oceans or coastlines shapefile that's a more detailed than what Natural Earth has to offer (1:10m). I'm working with 2000 Census county shapefiles, but it doesn't cut out lakes or ...
2
votes
1answer
117 views

US Census Data - An orderly means of deducting the area-weighted population of segments of incorporated places from the population of counties?

I'm working in ArcMap 10.1. Currently examining the segment of states with a geographical hierarchy of Counties, coextensive with state boundaries Within counties, unincorporated areas and ...
0
votes
0answers
280 views

Convert large amount of County names to FIPS in excel file?

Is their a way (other than manual) to convert a large data set with county names to their respective FIPS code?
2
votes
2answers
4k views

US unemployment data by zip (or aggregating data up to county level)

I am trying to find unemployment rate data for the US that is: at 5 digit zip code level monthly, or quarterly, or even annually, for 2008-2012 free That seems to be impossible as far as I can ...
1
vote
2answers
158 views

How to get city data only and not county?

Most of the data I've come across only comes in state/county/block group/block format. However, I'd like to pare down the shapefile to only observe the block groups within a city, not the county of ...
6
votes
4answers
10k views

Getting polygons of all countries and ISO-3166-2 subdivisons

In order to do reverse geocoding lookups to find a country (as ISO-3166-1) and the subdivision (as ISO-3166-2) for given coordinates I am looking for a way to get all polygons of all countries and ...
3
votes
2answers
1k views

Where can I download all 3,141 County US Polygons clipped with high resolution shoreline data?

After having done quite a bit of research I have been unable to find a single shapefile download which includes all of the current 3,141 counties with their associating data clipped with the highest ...
4
votes
1answer
102 views

Looking for USA county level health and socio-economic indicator data that is comparable to data on other countries of the world

I want to compare USA counties with other countries. I am looking for USA county level health and socio-economic indicator data that is comparable to data on other countries of the world. Ideally ...
6
votes
6answers
851 views

Where can I get (USA) county neighbour relationship data?

I need a graph where each node is a US county and each edge represents a border shared between counties. I do not particularly care about the absolute position or shape of each county (though that ...
5
votes
3answers
3k views

2010 Census Tiger County shp file with defined coastal land area

I am looking for a 2010 Census Tiger Shape file that hugs the coastline and doesn't include the ocean in county boundaries. I have a pre 2010 file that did this and I can't seem to find a 2010 ...
2
votes
2answers
1k views

How can I find a county fips given a yahoo woeid

I've used the Yahoo API to pull some woeids for counties. I need to map those woeids back to fips codes in order to associate them back to other data in my database, but I can't seems to figure out ...
4
votes
4answers
793 views

Examples of Beautiful Maps (at a county level or closer)

The Examples of Beautiful Maps question was outstanding and it gave us some great results. I was wondering if anyone else had similar examples, but at a county or parcel level. At those levels, I ...