Top 20 NuGet geohash Packages

Base16, Base32, Base58, Base85 encoding/decoding library
C# Port of Node-Geohash. This is a line for line port to C# of Node-Geohash https://github.com/sunng87/node-geohash
Easy-to-use and feature-rich geohash library
PCL version of NGeoHash (https://github.com/jesseemerick/NGeoHash) which is a port of node-geohash (https://github.com/sunng87/node-geohash)
Latlon Geohash (latlon-geohash) binding library for Bridge.NET projects.
Builds a firebase compatible GeoFire location entry
A library for creating RedisGeo Hash values within .NET
Lat/Lon to GeoHashed string, GeoHashed string to Lat/Lon, Single or muliple matches, GeoHashed to Extent, Polygon