diff --git a/homeassistant/components/ecowitt/__init__.py b/homeassistant/components/ecowitt/__init__.py
index 0c330bc3f33..3097160f463 100644
--- a/homeassistant/components/ecowitt/__init__.py
+++ b/homeassistant/components/ecowitt/__init__.py
@@ -14,10 +14,12 @@ from .const import DOMAIN
 
 PLATFORMS: list[Platform] = [Platform.BINARY_SENSOR, Platform.SENSOR]
 
+type EcowittConfigEntry = ConfigEntry[EcoWittListener]
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+
+async def async_setup_entry(hass: HomeAssistant, entry: EcowittConfigEntry) -> bool:
     """Set up the Ecowitt component from UI."""
-    ecowitt = hass.data.setdefault(DOMAIN, {})[entry.entry_id] = EcoWittListener()
+    ecowitt = entry.runtime_data = EcoWittListener()
 
     await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
 
@@ -43,11 +45,8 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     return True
 
 
-async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+async def async_unload_entry(hass: HomeAssistant, entry: EcowittConfigEntry) -> bool:
     """Unload a config entry."""
     webhook.async_unregister(hass, entry.data[CONF_WEBHOOK_ID])
 
-    if unload_ok := await hass.config_entries.async_unload_platforms(entry, PLATFORMS):
-        hass.data[DOMAIN].pop(entry.entry_id)
-
-    return unload_ok
+    return await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
diff --git a/homeassistant/components/ecowitt/binary_sensor.py b/homeassistant/components/ecowitt/binary_sensor.py
index 1ef2956d84b..5bc782e3589 100644
--- a/homeassistant/components/ecowitt/binary_sensor.py
+++ b/homeassistant/components/ecowitt/binary_sensor.py
@@ -3,19 +3,18 @@
 import dataclasses
 from typing import Final
 
-from aioecowitt import EcoWittListener, EcoWittSensor, EcoWittSensorTypes
+from aioecowitt import EcoWittSensor, EcoWittSensorTypes
 
 from homeassistant.components.binary_sensor import (
     BinarySensorDeviceClass,
     BinarySensorEntity,
     BinarySensorEntityDescription,
 )
-from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import EntityCategory
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
-from .const import DOMAIN
+from . import EcowittConfigEntry
 from .entity import EcowittEntity
 
 ECOWITT_BINARYSENSORS_MAPPING: Final = {
@@ -31,10 +30,12 @@ ECOWITT_BINARYSENSORS_MAPPING: Final = {
 
 
 async def async_setup_entry(
-    hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
+    hass: HomeAssistant,
+    entry: EcowittConfigEntry,
+    async_add_entities: AddEntitiesCallback,
 ) -> None:
     """Add sensors if new."""
-    ecowitt: EcoWittListener = hass.data[DOMAIN][entry.entry_id]
+    ecowitt = entry.runtime_data
 
     def _new_sensor(sensor: EcoWittSensor) -> None:
         """Add new sensor."""
diff --git a/homeassistant/components/ecowitt/diagnostics.py b/homeassistant/components/ecowitt/diagnostics.py
index a21d11e8126..4c0afa25e0c 100644
--- a/homeassistant/components/ecowitt/diagnostics.py
+++ b/homeassistant/components/ecowitt/diagnostics.py
@@ -4,20 +4,18 @@ from __future__ import annotations
 
 from typing import Any
 
-from aioecowitt import EcoWittListener
-
-from homeassistant.config_entries import ConfigEntry
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.device_registry import DeviceEntry
 
+from . import EcowittConfigEntry
 from .const import DOMAIN
 
 
 async def async_get_device_diagnostics(
-    hass: HomeAssistant, entry: ConfigEntry, device: DeviceEntry
+    hass: HomeAssistant, entry: EcowittConfigEntry, device: DeviceEntry
 ) -> dict[str, Any]:
     """Return diagnostics for a device entry."""
-    ecowitt: EcoWittListener = hass.data[DOMAIN][entry.entry_id]
+    ecowitt = entry.runtime_data
     station_id = next(item[1] for item in device.identifiers if item[0] == DOMAIN)
 
     station = ecowitt.stations[station_id]
diff --git a/homeassistant/components/ecowitt/sensor.py b/homeassistant/components/ecowitt/sensor.py
index 6845fb64d4c..23af2f2a3af 100644
--- a/homeassistant/components/ecowitt/sensor.py
+++ b/homeassistant/components/ecowitt/sensor.py
@@ -6,7 +6,7 @@ import dataclasses
 from datetime import datetime
 from typing import Final
 
-from aioecowitt import EcoWittListener, EcoWittSensor, EcoWittSensorTypes
+from aioecowitt import EcoWittSensor, EcoWittSensorTypes
 
 from homeassistant.components.sensor import (
     SensorDeviceClass,
@@ -14,7 +14,6 @@ from homeassistant.components.sensor import (
     SensorEntityDescription,
     SensorStateClass,
 )
-from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
     CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
     CONCENTRATION_PARTS_PER_MILLION,
@@ -37,7 +36,7 @@ from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.typing import StateType
 from homeassistant.util.unit_system import METRIC_SYSTEM, US_CUSTOMARY_SYSTEM
 
-from .const import DOMAIN
+from . import EcowittConfigEntry
 from .entity import EcowittEntity
 
 _METRIC: Final = (
@@ -217,10 +216,12 @@ ECOWITT_SENSORS_MAPPING: Final = {
 
 
 async def async_setup_entry(
-    hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
+    hass: HomeAssistant,
+    entry: EcowittConfigEntry,
+    async_add_entities: AddEntitiesCallback,
 ) -> None:
     """Add sensors if new."""
-    ecowitt: EcoWittListener = hass.data[DOMAIN][entry.entry_id]
+    ecowitt = entry.runtime_data
 
     def _new_sensor(sensor: EcoWittSensor) -> None:
         """Add new sensor."""