diff --git a/geo/src/main/java/com/github/davidmoten/geo/LatLong.java b/geo/src/main/java/com/github/davidmoten/geo/LatLong.java
index 0f39209..09801fb 100644
--- a/geo/src/main/java/com/github/davidmoten/geo/LatLong.java
+++ b/geo/src/main/java/com/github/davidmoten/geo/LatLong.java
@@ -61,4 +61,21 @@ public String toString() {
         return builder.toString();
     }
 
+    @Override
+    public boolean equals(final Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        final LatLong latLong = (LatLong) o;
+        return Double.compare(lat, latLong.lat) == 0 && Double.compare(lon, latLong.lon) == 0;
+    }
+
+    @Override
+    public int hashCode() {
+        return 31 * Double.hashCode(lat) + Double.hashCode(lon);
+    }
+
 }
diff --git a/geo/src/test/java/com/github/davidmoten/geo/LatLongTest.java b/geo/src/test/java/com/github/davidmoten/geo/LatLongTest.java
index 4e7ede6..6aa3b5f 100644
--- a/geo/src/test/java/com/github/davidmoten/geo/LatLongTest.java
+++ b/geo/src/test/java/com/github/davidmoten/geo/LatLongTest.java
@@ -1,9 +1,9 @@
 package com.github.davidmoten.geo;
 
-import static org.junit.Assert.assertEquals;
-
 import org.junit.Test;
 
+import static org.junit.Assert.assertEquals;
+
 /**
  * Unit tests for {@link LatLong}.
  * 
@@ -18,4 +18,15 @@ public void testToString() {
                 new LatLong(10, 20).toString());
     }
 
+    @Test
+    public void testHashCode() {
+        float lat = 20.05f;
+        float lon = -15.5f;
+        LatLong a = new LatLong(lat, lon);
+        LatLong b = new LatLong(lat, lon);
+
+        assertEquals(a.hashCode(), b.hashCode());
+        assertEquals(a, b);
+    }
+
 }