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Questions tagged [county]

A type of geographic area / administrative boundary.

2
votes
2answers
59 views

Aggregating census level data to county level in QGIS?

I'm trying to take census tract linked data (in the form of a CSV I joined to a census tract level map of Washington State) and create a county-level map with it. My census data also has the county ...
1
vote
0answers
29 views

Extract the county (or village) level data of forest cover change from Google earth engine [closed]

I am currently working with the Hansen data (Global Forest Change) in Earth Engine. And I would like to extract the county (or village) level data of forest cover change in China from Google earth ...
2
votes
1answer
47 views

What part of the Census Block is the County?

I have a list of census blocks for California and I am trying to get the county for each row. If I have a census block of 60070004024003, which 2 digits make up the county FIPS?
1
vote
1answer
54 views

County Shapefile goes into body of Water

I am trying to map three counties in QGIS with a layer of census tracts on top. The county border is in white and the census tracts are in green. Is there a way to not show the county border but leave ...
2
votes
2answers
3k views

Calculate distance between a coordinate and a county in GeoPandas

I have a single coordinate and a GeoPandas Dataframe representing US counties whose geometry is polygons that form the boundary of counties. Each of these polygons is also given through lat/lon pairs. ...
-1
votes
1answer
280 views

Converting latitude and longitude points to UK counties [closed]

I would like to find an API whereby I can send it (UK) lat and long pairs and it will return a UK county if one exists for that pair. Ideally I will send it {50.3755,4.1427} and it will return {Devon}...
2
votes
1answer
152 views

Doing weighted overlay analysis using CSV data joined with shapefile in QGIS?

I have a CSV file which has data for different counties income, Population and Proximity of United States of America like this : ]1 I have already joined the CSV file with the shapefile of United ...
0
votes
1answer
58 views

Determining which polygons only intersect once with the polygons of another shapefile

I have two shapefiles, one for counties and one for congressional districts. I need to determine which counties are in more than one congressional district. I would think I could use postgis and use ...
1
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0answers
262 views

latitude longitude search in ALL state or county gis sites

I'm working in geography field now and using local gis sites for different states and counties. However, they all seem different, and it takes time to learn each new one as required. For example, ...
1
vote
1answer
416 views

Identifying differences in polygons across shape files

I am trying to compare the 2000 Census county boundaries with the 2010 Census county boundaries. Each county is uniquely identified in a given year by a FIPS code and I want to compare if the polygon ...
1
vote
3answers
3k views

Add individual state county borders to an ArcMap project?

I am working on an emergency response mapping project for our Tribe and I want to develop emergency response maps for individual counties instead of the whole state. Our ArcMap has all the counties in ...
0
votes
1answer
368 views

How to subset data for whole county to just portion in particular city using ArcGIS for Desktop?

I have a shapefile of all of Riverside County. It includes parcels with and without site addresses. I do not have a city limits shapefile. How can I locate the boundary of the city that I need to pull,...
3
votes
1answer
554 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
345 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
1k 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
142 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
54 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 ...
1
vote
1answer
526 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 ...
3
votes
1answer
632 views

Georeferencing 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
282 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
553 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 ...
1
vote
2answers
745 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
1answer
665 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 day....
1
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5answers
609 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 ...
3
votes
3answers
5k 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 ...
1
vote
1answer
173 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
159 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 ...
3
votes
2answers
7k 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 tell. ...
1
vote
2answers
221 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 ...
9
votes
5answers
22k 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 ...
4
votes
2answers
2k 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
117 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
2k 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 ...
8
votes
3answers
5k 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
2k 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 ...
3
votes
4answers
1k views

Seeking examples of Beautiful Maps at county level or closer? [closed]

I was wondering if anyone else had similar examples to Seeking examples of beautiful maps?, but at a county or parcel level. At those levels, I wonder if people will react the same, or if there will ...