diff --git a/src/v/cluster/archival/purger.cc b/src/v/cluster/archival/purger.cc
index 8f6f70250127d..b4889dac17547 100644
--- a/src/v/cluster/archival/purger.cc
+++ b/src/v/cluster/archival/purger.cc
@@ -25,6 +25,7 @@
 #include "cluster/topics_frontend.h"
 #include "config/configuration.h"
 #include "config/node_config.h"
+#include "container/chunked_hash_map.h"
 #include "hashing/xx.h"
 
 namespace {
@@ -355,8 +356,8 @@ ss::future<housekeeping_job::run_result> purger::run(run_quota_t quota) {
     }
 
     // Take a copy, as we will iterate over it asynchronously
-    cluster::topic_table::lifecycle_markers_t markers
-      = _topic_table.get_lifecycle_markers();
+    chunked_vector<cluster::topic_table::lifecycle_markers_t::value_type>
+      markers{std::from_range, _topic_table.get_lifecycle_markers()};
 
     const auto my_global_position = get_global_position();
 
diff --git a/src/v/cluster/controller_snapshot.h b/src/v/cluster/controller_snapshot.h
index 14e85543e9d03..a12d324da1537 100644
--- a/src/v/cluster/controller_snapshot.h
+++ b/src/v/cluster/controller_snapshot.h
@@ -184,7 +184,7 @@ struct topics_t
     chunked_hash_map<model::topic_namespace, topic_t> topics;
     raft::group_id highest_group_id;
 
-    absl::node_hash_map<
+    chunked_hash_map<
       nt_revision,
       nt_lifecycle_marker,
       nt_revision_hash,
diff --git a/src/v/cluster/topic_table.cc b/src/v/cluster/topic_table.cc
index a48c3488405c7..15240883377ed 100644
--- a/src/v/cluster/topic_table.cc
+++ b/src/v/cluster/topic_table.cc
@@ -1718,7 +1718,8 @@ ss::future<> topic_table::apply_snapshot(
 
     // Lifecycle markers is a simple static collection without notifications
     // etc, so we can just copy directly into place.
-    _lifecycle_markers = controller_snap.topics.lifecycle_markers;
+    _lifecycle_markers.replace(
+      controller_snap.topics.lifecycle_markers.values().copy());
 
     reset_partitions_to_force_reconfigure(
       controller_snap.topics.partitions_to_force_recover);
diff --git a/src/v/cluster/topic_table.h b/src/v/cluster/topic_table.h
index dca58de16a017..163d41e79a1d9 100644
--- a/src/v/cluster/topic_table.h
+++ b/src/v/cluster/topic_table.h
@@ -426,7 +426,7 @@ class topic_table {
         topic_id_mapping_t _by_id;
     };
 
-    using lifecycle_markers_t = absl::node_hash_map<
+    using lifecycle_markers_t = chunked_hash_map<
       nt_revision,
       nt_lifecycle_marker,
       nt_revision_hash,
diff --git a/src/v/redpanda/admin/server.cc b/src/v/redpanda/admin/server.cc
index 7684d16672b9d..73eb640406595 100644
--- a/src/v/redpanda/admin/server.cc
+++ b/src/v/redpanda/admin/server.cc
@@ -147,6 +147,7 @@
 #include <limits>
 #include <memory>
 #include <numeric>
+#include <ranges>
 #include <stdexcept>
 #include <system_error>
 #include <type_traits>
@@ -4676,8 +4677,8 @@ admin_server::get_cloud_storage_lifecycle(std::unique_ptr<ss::http::request>) {
 
     auto& topic_table = _controller->get_topics_state().local();
 
-    cluster::topic_table::lifecycle_markers_t markers
-      = topic_table.get_lifecycle_markers();
+    chunked_vector<cluster::topic_table::lifecycle_markers_t::value_type>
+      markers{std::from_range, topic_table.get_lifecycle_markers()};
 
     // Hack: persuade json response to always include the field even if empty
     response.markers._set = true;