A C# class library that will calculate distance and cardinal direction between two sets of coordinates and provides the lat/long boundaries around an origin coordinate allowing for simple SQL or LINQ selection of locations within the given radius.
Please upgrade to version 12 (Search ThinkGeo.Core on NuGet) if possible. Version 12 works with both .NET Framework and .NET Core, has much less dependencies and many other benifits over 10.0. GraticuleLayer is included in the main package ThinkGeo.Core in Version 12....
More information
Provides a easy-to-use interface for quering data in CEPAberto (http://www.cepaberto.com) API. Needs a API key (free after registration) to work. Find postal code, geocoordinates and city information about a postal code or a latitude/longitude data
Provides latitude and longitude coordinates from ZIP codes (50 states + DC) and more. Light-weight assembly built for various frameworks. No dependencies.