diff --git a/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentTopic.java b/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentTopic.java
index 8ff51f6c5017f..becd0943b308b 100644
--- a/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentTopic.java
+++ b/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentTopic.java
@@ -38,6 +38,7 @@
 import java.util.concurrent.CancellationException;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.CompletionException;
+import java.util.concurrent.ExecutionException;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicLong;
@@ -1605,6 +1606,26 @@ public PersistentTopicInternalStats getInternalStats() {
             stats.ledgers.add(info);
         });
 
+        // Add ledger info for compacted topic ledger if exist.
+        LedgerInfo info = new LedgerInfo();
+        info.ledgerId = -1;
+        info.entries = -1;
+        info.size = -1;
+
+        try {
+            Optional<CompactedTopicImpl.CompactedTopicContext> compactedTopicContext =
+                    ((CompactedTopicImpl)compactedTopic).getCompactedTopicContext();
+            if (compactedTopicContext.isPresent()) {
+                CompactedTopicImpl.CompactedTopicContext ledgerContext = compactedTopicContext.get();
+                info.ledgerId = ledgerContext.getLedger().getId();
+                info.entries = ledgerContext.getLedger().getLastAddConfirmed() + 1;
+                info.size = ledgerContext.getLedger().getLength();
+            }
+        } catch (ExecutionException | InterruptedException e) {
+            log.warn("[{}]Fail to get ledger information for compacted topic.", topic);
+        }
+        stats.compactedLedger = info;
+
         stats.cursors = Maps.newTreeMap();
         ml.getCursors().forEach(c -> {
             ManagedCursorImpl cursor = (ManagedCursorImpl) c;
diff --git a/pulsar-broker/src/main/java/org/apache/pulsar/compaction/CompactedTopicImpl.java b/pulsar-broker/src/main/java/org/apache/pulsar/compaction/CompactedTopicImpl.java
index 2d430a7853ade..74d24c6dc5a64 100644
--- a/pulsar-broker/src/main/java/org/apache/pulsar/compaction/CompactedTopicImpl.java
+++ b/pulsar-broker/src/main/java/org/apache/pulsar/compaction/CompactedTopicImpl.java
@@ -28,8 +28,11 @@
 import java.util.Enumeration;
 import java.util.List;
 import java.util.NoSuchElementException;
+import java.util.Optional;
 import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutionException;
 
+import lombok.Getter;
 import org.apache.bookkeeper.client.BookKeeper;
 import org.apache.bookkeeper.client.BKException;
 import org.apache.bookkeeper.client.LedgerHandle;
@@ -250,7 +253,8 @@ private static CompletableFuture<List<Entry>> readEntries(LedgerHandle lh, long
                 });
     }
 
-    static class CompactedTopicContext {
+    @Getter
+    public static class CompactedTopicContext {
         final LedgerHandle ledger;
         final AsyncLoadingCache<Long,MessageIdData> cache;
 
@@ -260,6 +264,14 @@ static class CompactedTopicContext {
         }
     }
 
+    /**
+     * Getter for CompactedTopicContext.
+     * @return CompactedTopicContext
+     */
+    public Optional<CompactedTopicContext> getCompactedTopicContext() throws ExecutionException, InterruptedException {
+        return compactedTopicContext == null? Optional.empty() : Optional.of(compactedTopicContext.get());
+    }
+
     private static int comparePositionAndMessageId(PositionImpl p, MessageIdData m) {
         return ComparisonChain.start()
             .compare(p.getLedgerId(), m.getLedgerId())
diff --git a/pulsar-broker/src/test/java/org/apache/pulsar/compaction/CompactionTest.java b/pulsar-broker/src/test/java/org/apache/pulsar/compaction/CompactionTest.java
index 2505a6eaffbb7..4ef450dc399b5 100644
--- a/pulsar-broker/src/test/java/org/apache/pulsar/compaction/CompactionTest.java
+++ b/pulsar-broker/src/test/java/org/apache/pulsar/compaction/CompactionTest.java
@@ -66,6 +66,7 @@
 import org.apache.pulsar.client.api.SubscriptionInitialPosition;
 import org.apache.pulsar.client.impl.BatchMessageIdImpl;
 import org.apache.pulsar.common.policies.data.ClusterData;
+import org.apache.pulsar.common.policies.data.PersistentTopicInternalStats;
 import org.apache.pulsar.common.policies.data.RetentionPolicies;
 import org.apache.pulsar.common.policies.data.TenantInfo;
 import org.apache.pulsar.common.util.FutureUtil;
@@ -132,6 +133,12 @@ public void testCompaction() throws Exception {
         Compactor compactor = new TwoPhaseCompactor(conf, pulsarClient, bk, compactionScheduler);
         compactor.compact(topic).get();
 
+        PersistentTopicInternalStats internalStats = admin.topics().getInternalStats(topic);
+        // Compacted topic ledger should have same number of entry equals to number of unique key.
+        Assert.assertEquals(expected.size(), internalStats.compactedLedger.entries);
+        Assert.assertTrue(internalStats.compactedLedger.ledgerId > -1);
+        Assert.assertFalse(internalStats.compactedLedger.offloaded);
+
         // consumer with readCompacted enabled only get compacted entries
         try (Consumer<byte[]> consumer = pulsarClient.newConsumer().topic(topic).subscriptionName("sub1")
                 .readCompacted(true).subscribe()) {
diff --git a/pulsar-common/src/main/java/org/apache/pulsar/common/policies/data/PersistentTopicInternalStats.java b/pulsar-common/src/main/java/org/apache/pulsar/common/policies/data/PersistentTopicInternalStats.java
index aa9c59582f337..63fd3cb1134e4 100644
--- a/pulsar-common/src/main/java/org/apache/pulsar/common/policies/data/PersistentTopicInternalStats.java
+++ b/pulsar-common/src/main/java/org/apache/pulsar/common/policies/data/PersistentTopicInternalStats.java
@@ -44,6 +44,9 @@ public class PersistentTopicInternalStats {
     public List<LedgerInfo> ledgers;
     public Map<String, CursorStats> cursors;
 
+    // LedgerInfo for compacted topic if exist.
+    public LedgerInfo compactedLedger;
+
     /**
      * Ledger information.
      */
diff --git a/site2/docs/admin-api-persistent-topics.md b/site2/docs/admin-api-persistent-topics.md
index 340e7c760ec6f..df950f9905fc3 100644
--- a/site2/docs/admin-api-persistent-topics.md
+++ b/site2/docs/admin-api-persistent-topics.md
@@ -364,6 +364,16 @@ It shows detailed statistics of a topic.
 
       -   **offloaded**: Whether this ledger is offloaded
 
+  -   **compactedLedger**: The ledgers holding un-acked messages after topic compaction.
+ 
+      -   **ledgerId**: Id of this ledger
+     
+      -   **entries**: Total number of entries belong to this ledger
+     
+      -   **size**: Size of messages written to this ledger (in bytes)
+     
+      -   **offloaded**: Will always be false for compacted topic ledger.
+      
   -   **cursors**: The list of all cursors on this topic. There will be one for every subscription you saw in the topic stats.
 
       -   **markDeletePosition**: All of messages before the markDeletePosition are acknowledged by the subscriber.
@@ -403,9 +413,16 @@ It shows detailed statistics of a topic.
         {
             "ledgerId": 324711539,
             "entries": 0,
-            "size": 0
+            "size": 0,
+            "offloaded": true
         }
     ],
+    "compactedLedger": {
+        "ledgerId": 324711540,
+        "entries": 10,
+        "size": 100,
+        "offloaded": false
+    },
     "cursors": {
         "my-subscription": {
             "markDeletePosition": "324711539:3133",