diff --git a/homeassistant/components/dexcom/__init__.py b/homeassistant/components/dexcom/__init__.py
index f799d150f61..54722c8dade 100644
--- a/homeassistant/components/dexcom/__init__.py
+++ b/homeassistant/components/dexcom/__init__.py
@@ -2,16 +2,15 @@
 
 from pydexcom import AccountError, Dexcom, SessionError
 
-from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import CONF_PASSWORD, CONF_USERNAME
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import ConfigEntryNotReady
 
-from .const import CONF_SERVER, DOMAIN, PLATFORMS, SERVER_OUS
-from .coordinator import DexcomCoordinator
+from .const import CONF_SERVER, PLATFORMS, SERVER_OUS
+from .coordinator import DexcomConfigEntry, DexcomCoordinator
 
 
-async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+async def async_setup_entry(hass: HomeAssistant, entry: DexcomConfigEntry) -> bool:
     """Set up Dexcom from a config entry."""
     try:
         dexcom = await hass.async_add_executor_job(
@@ -28,15 +27,13 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     coordinator = DexcomCoordinator(hass, entry=entry, dexcom=dexcom)
     await coordinator.async_config_entry_first_refresh()
 
-    hass.data.setdefault(DOMAIN, {})[entry.entry_id] = coordinator
+    entry.runtime_data = coordinator
 
     await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
 
     return True
 
 
-async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+async def async_unload_entry(hass: HomeAssistant, entry: DexcomConfigEntry) -> bool:
     """Unload a config entry."""
-    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/dexcom/coordinator.py b/homeassistant/components/dexcom/coordinator.py
index af01482c4eb..a9e14def350 100644
--- a/homeassistant/components/dexcom/coordinator.py
+++ b/homeassistant/components/dexcom/coordinator.py
@@ -15,6 +15,8 @@ _LOGGER = logging.getLogger(__name__)
 
 _SCAN_INTERVAL = timedelta(seconds=180)
 
+type DexcomConfigEntry = ConfigEntry[DexcomCoordinator]
+
 
 class DexcomCoordinator(DataUpdateCoordinator[GlucoseReading]):
     """Dexcom Coordinator."""
@@ -22,7 +24,7 @@ class DexcomCoordinator(DataUpdateCoordinator[GlucoseReading]):
     def __init__(
         self,
         hass: HomeAssistant,
-        entry: ConfigEntry,
+        entry: DexcomConfigEntry,
         dexcom: Dexcom,
     ) -> None:
         """Initialize the coordinator."""
diff --git a/homeassistant/components/dexcom/sensor.py b/homeassistant/components/dexcom/sensor.py
index d9381964db7..cdb1894b675 100644
--- a/homeassistant/components/dexcom/sensor.py
+++ b/homeassistant/components/dexcom/sensor.py
@@ -3,7 +3,6 @@
 from __future__ import annotations
 
 from homeassistant.components.sensor import SensorDeviceClass, SensorEntity
-from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import CONF_USERNAME, UnitOfBloodGlucoseConcentration
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.device_registry import DeviceInfo
@@ -11,7 +10,7 @@ from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
 from .const import DOMAIN
-from .coordinator import DexcomCoordinator
+from .coordinator import DexcomConfigEntry, DexcomCoordinator
 
 TRENDS = {
     1: "rising_quickly",
@@ -26,11 +25,11 @@ TRENDS = {
 
 async def async_setup_entry(
     hass: HomeAssistant,
-    config_entry: ConfigEntry,
+    config_entry: DexcomConfigEntry,
     async_add_entities: AddEntitiesCallback,
 ) -> None:
     """Set up the Dexcom sensors."""
-    coordinator = hass.data[DOMAIN][config_entry.entry_id]
+    coordinator = config_entry.runtime_data
     username = config_entry.data[CONF_USERNAME]
     async_add_entities(
         [