Soenneker.ZipCodes.Lookup 4.0.3

Prefix Reserved

dotnet add package Soenneker.ZipCodes.Lookup --version 4.0.3

NuGet\Install-Package Soenneker.ZipCodes.Lookup -Version 4.0.3

This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.

<PackageReference Include="Soenneker.ZipCodes.Lookup" Version="4.0.3" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="Soenneker.ZipCodes.Lookup" Version="4.0.3" />
                    

                            Directory.Packages.props

<PackageReference Include="Soenneker.ZipCodes.Lookup" />
                    

                            Project file

For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.

paket add Soenneker.ZipCodes.Lookup --version 4.0.3

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: Soenneker.ZipCodes.Lookup, 4.0.3"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

#:package Soenneker.ZipCodes.Lookup@4.0.3

#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.

#addin nuget:?package=Soenneker.ZipCodes.Lookup&version=4.0.3
                    

                            Install as a Cake Addin

#tool nuget:?package=Soenneker.ZipCodes.Lookup&version=4.0.3
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Soenneker.ZipCodes.Lookup

Fast ZipCode Resolution for .NET

Installation

dotnet add package Soenneker.ZipCodes.Lookup

Usage

services.AddZipCodeLookupUtilAsSingleton();

ZipCodeInfo? info = await zipCodeLookupUtil.Get("90210");
string? city = await zipCodeLookupUtil.GetCity("90210");
string? state = await zipCodeLookupUtil.GetState("90210");
(double Latitude, double Longitude)? coordinates = await zipCodeLookupUtil.GetLatitudeLongitude("90210");
string? timeZoneId = await zipCodeLookupUtil.GetTimeZoneId("90210");

ZipCodeCoordinates? fastCoordinates = await zipCodeLookupUtil.GetCoordinates("90210");

if (fastCoordinates != null)
{
    // use fastCoordinates.Value.Latitude and fastCoordinates.Value.Longitude
}

IReadOnlyList<ZipCodeInfo> californiaZipCodes = await zipCodeLookupUtil.GetByState("CA");
IReadOnlyList<ZipCodeInfo> beverlyHillsZipCodes = await zipCodeLookupUtil.GetByCityAndState("Beverly Hills", "CA");

The lookup data is loaded lazily from USZipCodeGeometry.txt, provided by Soenneker.ZipCodes.Data.GeoNames.

Product	Compatible and additional computed target framework versions.
.NET	net10.0 is compatible. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

net10.0
- Soenneker.Asyncs.Initializers (>= 4.0.49)
- Soenneker.TimeZones.Lookup (>= 4.0.2)
- Soenneker.Utils.File (>= 4.0.2157)
- Soenneker.Utils.Paths.Resources (>= 4.0.149)
- Soenneker.ZipCodes.Data.GeoNames (>= 4.0.2)

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
4.0.3	89	5/17/2026
4.0.1	95	5/15/2026