diff --git a/src/ZipCodeCoords/Spatial.cs b/src/ZipCodeCoords/Spatial.cs
index 2681e1a..d8859ef 100644
--- a/src/ZipCodeCoords/Spatial.cs
+++ b/src/ZipCodeCoords/Spatial.cs
@@ -35,7 +35,7 @@ private static List<Coordinate> LoadCoordinates()
                     var zipCode = reader.ReadInt32();
                     var latitude = reader.ReadDouble();
                     var longitude = reader.ReadDouble();
-                    coordinates.Add(new Coordinate(new ZipCode(zipCode), latitude, longitude));
+                    coordinates.Add(new Coordinate(new ZipCode(zipCode), longitude, latitude));
                 } while (reader.BaseStream.Position < reader.BaseStream.Length);
             }
             return coordinates;