using System;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        var test = new Regex(@",\s*(?<state>[a-zA-Z]+)\s*,\s*(?<zip>[0-9]{5})");

        var input = @"Shipping Address

Sheryl Lundgren

1585 hemlock street, Eugene

Oregon

EUGENE , OH , 97404

US

5412284787";

        var match = test.Match(input);

        Console.WriteLine("State: " + match.Groups["state"]);

        Console.WriteLine("Zip: " + match.Groups["zip"]);

    }

}