Questions tagged [administrative-boundaries]

Divisions of the earth's surface created to collect, organize, or depict information.

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Keys for merging US state/county ANSI's with GADM Unique identifiers?

I've got county-level data from USDA NASS, and I want to merge it with gridded climate data. A preliminary step is the associate the counties with the coordinates of their centroids. If I merge by ...
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Extracting Sub-National admin boundaries or regions from GRUMPv1 or GPW v4

GRUMP and Gridded Population of the World (GPW), v4 provides population and demographic values for sub-national levels. However, I am unable to extract the polygons or boundaries from their datasets. ...
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Seeking USA congressional district to county relationship files?

This must be a common enough problem that other users have come across it. I've finagled my way around inconsistencies and dropped observations, but now I'm reaching out to see if anyone knows of a '...
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Identifying polygons overlapping several administrative levels

I have information about grid population in a country assigned to polygons; the borders of these polygons are defined by night light intensity. In this way I am able to identify the "real" extent of ...
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What is the most suitable way to get the boundary of a state or a country or the whole world dynamically?

I am working on a project where I have to create filled map charts based on the data client has provided. The data has latitude and longitude information. Based on the selected level (city or state or ...
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Data about administrative subdivisions capital cities

I am looking for data about second or third rank administrative capitals in every African country (the administrative centre of a country territorial subdivision), but I can't find anything close to ...
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Extract administrative boundaries with physical borders at the coast line from OSM data

I successfully downloaded the OSM data from https://www.geofabrik.de/ and converted the .osm.pbf file to a .gpkg using og2ogr. Now I want to extract administrative boundaries using DB-Manager and SQL: ...
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Filter through geometries of a feature collection in Google Earth Engine to export as a shapefile

I'm trying to export a shapefile of administrative units out of GEE, but I get the error Shapefiles cannot contain multiple geometry types; found 'LineString', 'Polygon' Here is my code and the ...
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Way to make equal-population areas of world using administrative divisions?

I am trying to make a map, that aims to divide the world into areas each with an equal population. I've found things like Dave's Redistricting for individual US states, but nothing for the entire ...
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Up-to-date South Korea level-1 administrative boundaries following land reclamation

Because of land reclamation, South Korea's western coastline changes regularly and data is regularly outdated. For example, GADM shapefiles describe boundaries prior to the development of Songdo. How ...
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Query admin boundary from GeoNames API by lat/lon and admin level

I have a list of points (lat / lon coordinates) which represent centroids of admin boundaries for a given country and admin level, e.g. Afghanistan, admin level 1. I need to get their GeoNames IDs (...
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Connect postcode to administrative boundry level

In OSM I would like depict a certain area ("working area"). Using the following I can specify a certain area around a certain city: [out:json][timeout:800]; {{geocodeArea:Netherlands}}->....
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Exclusive Economic Zone (EEZ) and Regular Boundaries one shapefile

Does anyone have an idea if there is a shapefile of the merged EEZ boundaries and regular administrative boundaries? I need this data for entire Africa. I have downloaded the EEZ boundaries from http:/...
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How to get land_area polygons with osm2pgsql?

I want to get the polygons of several administrative land areas. For example https://wiki.openstreetmap.org/wiki/DE:Grenze#Innerstaatliche_Grenzen contains the relation numbers for the land areas of ...
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Drawing polygons that share boundaries using Google My Maps

I am relatively new to GIS and I am facing a problem to maintain a layer of polygons that share boundaries. I use google my maps to edit the polygons but they are full of gaps and overlaps. How can I ...
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Seeking block (sub-district) level boundaries for India?

I'm looking for block (sub-district) level shapefiles for India. The GADM database only has files for the 2300 Tehsils, whereas I'm looking for the about 5500 Census blocks (sub-districts) for any ...
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Clip satellite image to study area based on dropdown list location selection using GEE

var statesDropdown = ui.Select({ placeholder: 'Loading states...', disabled: true, onChange: onStateChange }); updateStates(); var districtsDropdown = ui.Select({ placeholder: 'First select a ...
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Where can I find data of city boundaries in the US?

I know there is previous question about this topic but there is no exact answer. Actually I was wondering, does city boundaries cover all around the nation without space? I mean, for MA I found two ...
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Look Up table from (Latitude,Longitude) to country, city etc. boundaries (Bounding Box)

I'm looking for "Standard" assume file (?) containing best practice used simple "approximately squared" boundaries of countries, major cities etc. The use case is getting (Lat,Lon) and perform look ...
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Downloading Polygon/Administrative Boundaries using WikiMapia

Is there any way to download administrative boundaries / polygons for a small city through Wikimapia? I tried to download the boundaries but the results were points not polygons. I need to download ...
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