diff --git a/homeassistant/components/lg_netcast/__init__.py b/homeassistant/components/lg_netcast/__init__.py
index f6fb834ab11..c2509889760 100644
--- a/homeassistant/components/lg_netcast/__init__.py
+++ b/homeassistant/components/lg_netcast/__init__.py
@@ -2,8 +2,10 @@
 
 from typing import Final
 
+from pylgnetcast import LgNetCastClient
+
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import Platform
+from homeassistant.const import CONF_ACCESS_TOKEN, CONF_HOST, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import config_validation as cv
 
@@ -13,21 +15,25 @@ PLATFORMS: Final[list[Platform]] = [Platform.MEDIA_PLAYER]
 
 CONFIG_SCHEMA = cv.config_entry_only_config_schema(DOMAIN)
 
+type LgNetCastConfigEntry = ConfigEntry[LgNetCastClient]
 
-async def async_setup_entry(hass: HomeAssistant, config_entry: ConfigEntry) -> bool:
+
+async def async_setup_entry(
+    hass: HomeAssistant, config_entry: LgNetCastConfigEntry
+) -> bool:
     """Set up a config entry."""
-    hass.data.setdefault(DOMAIN, {})
+    host = config_entry.data[CONF_HOST]
+    access_token = config_entry.data[CONF_ACCESS_TOKEN]
+
+    client = LgNetCastClient(host, access_token)
+
+    config_entry.runtime_data = client
 
     await hass.config_entries.async_forward_entry_setups(config_entry, PLATFORMS)
 
     return True
 
 
-async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+async def async_unload_entry(hass: HomeAssistant, entry: LgNetCastConfigEntry) -> bool:
     """Unload a config entry."""
-    unload_ok = await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
-
-    if unload_ok:
-        del hass.data[DOMAIN][entry.entry_id]
-
-    return unload_ok
+    return await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
diff --git a/homeassistant/components/lg_netcast/device_trigger.py b/homeassistant/components/lg_netcast/device_trigger.py
index d1808b3e536..c4f48fee431 100644
--- a/homeassistant/components/lg_netcast/device_trigger.py
+++ b/homeassistant/components/lg_netcast/device_trigger.py
@@ -47,14 +47,13 @@ async def async_validate_trigger_config(
         except ValueError as err:
             raise InvalidDeviceAutomationConfig(err) from err
 
-        if DOMAIN in hass.data:
-            for config_entry_id in device.config_entries:
-                if hass.data[DOMAIN].get(config_entry_id):
-                    break
-            else:
-                raise InvalidDeviceAutomationConfig(
-                    f"Device {device.id} is not from an existing {DOMAIN} config entry"
-                )
+        if not any(
+            entry.entry_id in device.config_entries
+            for entry in hass.config_entries.async_loaded_entries(DOMAIN)
+        ):
+            raise InvalidDeviceAutomationConfig(
+                f"Device {device.id} is not from an existing {DOMAIN} config entry"
+            )
 
     return config
 
diff --git a/homeassistant/components/lg_netcast/media_player.py b/homeassistant/components/lg_netcast/media_player.py
index de652eeef08..ca533a0e3c3 100644
--- a/homeassistant/components/lg_netcast/media_player.py
+++ b/homeassistant/components/lg_netcast/media_player.py
@@ -5,7 +5,7 @@ from __future__ import annotations
 from datetime import datetime
 from typing import TYPE_CHECKING, Any
 
-from pylgnetcast import LG_COMMAND, LgNetCastClient, LgNetCastError
+from pylgnetcast import LG_COMMAND, LgNetCastError
 from requests import RequestException
 
 from homeassistant.components.media_player import (
@@ -15,13 +15,13 @@ from homeassistant.components.media_player import (
     MediaPlayerState,
     MediaType,
 )
-from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import CONF_ACCESS_TOKEN, CONF_HOST, CONF_MODEL, CONF_NAME
+from homeassistant.const import CONF_MODEL, CONF_NAME
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.device_registry import DeviceInfo
 from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
 from homeassistant.helpers.trigger import PluggableAction
 
+from . import LgNetCastConfigEntry
 from .const import ATTR_MANUFACTURER, DOMAIN
 from .triggers.turn_on import async_get_turn_on_trigger
 
@@ -46,20 +46,15 @@ SUPPORT_LGTV = (
 
 async def async_setup_entry(
     hass: HomeAssistant,
-    config_entry: ConfigEntry,
+    config_entry: LgNetCastConfigEntry,
     async_add_entities: AddConfigEntryEntitiesCallback,
 ) -> None:
     """Set up a LG Netcast Media Player from a config_entry."""
-
-    host = config_entry.data[CONF_HOST]
-    access_token = config_entry.data[CONF_ACCESS_TOKEN]
     unique_id = config_entry.unique_id
     name = config_entry.data.get(CONF_NAME, DEFAULT_NAME)
     model = config_entry.data[CONF_MODEL]
 
-    client = LgNetCastClient(host, access_token)
-
-    hass.data[DOMAIN][config_entry.entry_id] = client
+    client = config_entry.runtime_data
 
     async_add_entities([LgTVDevice(client, name, model, unique_id=unique_id)])