diff --git a/.strict-typing b/.strict-typing
index f9baa9ac01a..cfccd601ac1 100644
--- a/.strict-typing
+++ b/.strict-typing
@@ -78,6 +78,7 @@ homeassistant.components.light.*
 homeassistant.components.local_ip.*
 homeassistant.components.lock.*
 homeassistant.components.lookin.*
+homeassistant.components.luftdaten.*
 homeassistant.components.mailbox.*
 homeassistant.components.media_player.*
 homeassistant.components.modbus.*
diff --git a/homeassistant/components/luftdaten/__init__.py b/homeassistant/components/luftdaten/__init__.py
index f131a2dc017..33ddcf67a1e 100644
--- a/homeassistant/components/luftdaten/__init__.py
+++ b/homeassistant/components/luftdaten/__init__.py
@@ -33,7 +33,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
 
     luftdaten = Luftdaten(entry.data[CONF_SENSOR_ID])
 
-    async def async_update() -> dict[Any, Any]:
+    async def async_update() -> dict[str, float | int]:
         """Update sensor/binary sensor data."""
         try:
             await luftdaten.get_data()
@@ -43,7 +43,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
         if not luftdaten.values:
             raise UpdateFailed("Did not receive sensor data from luftdaten.info")
 
-        data = luftdaten.values
+        data: dict[str, float | int] = luftdaten.values
         data.update(luftdaten.meta)
         return data
 
diff --git a/homeassistant/components/luftdaten/config_flow.py b/homeassistant/components/luftdaten/config_flow.py
index febc42e28fd..31f518dcbcf 100644
--- a/homeassistant/components/luftdaten/config_flow.py
+++ b/homeassistant/components/luftdaten/config_flow.py
@@ -1,5 +1,7 @@
 """Config flow to configure the Luftdaten component."""
-from collections import OrderedDict
+from __future__ import annotations
+
+from typing import Any
 
 from luftdaten import Luftdaten
 from luftdaten.exceptions import LuftdatenConnectionError
@@ -13,6 +15,7 @@ from homeassistant.const import (
     CONF_SHOW_ON_MAP,
 )
 from homeassistant.core import callback
+from homeassistant.data_entry_flow import FlowResult
 import homeassistant.helpers.config_validation as cv
 
 from .const import CONF_SENSOR_ID, DEFAULT_SCAN_INTERVAL, DOMAIN
@@ -24,17 +27,22 @@ class LuftDatenFlowHandler(config_entries.ConfigFlow, domain=DOMAIN):
     VERSION = 1
 
     @callback
-    def _show_form(self, errors=None):
+    def _show_form(self, errors: dict[str, str] | None = None) -> FlowResult:
         """Show the form to the user."""
-        data_schema = OrderedDict()
-        data_schema[vol.Required(CONF_SENSOR_ID)] = cv.positive_int
-        data_schema[vol.Optional(CONF_SHOW_ON_MAP, default=False)] = bool
-
         return self.async_show_form(
-            step_id="user", data_schema=vol.Schema(data_schema), errors=errors or {}
+            step_id="user",
+            data_schema=vol.Schema(
+                {
+                    vol.Required(CONF_SENSOR_ID): cv.positive_int,
+                    vol.Optional(CONF_SHOW_ON_MAP, default=False): bool,
+                }
+            ),
+            errors=errors or {},
         )
 
-    async def async_step_user(self, user_input=None):
+    async def async_step_user(
+        self, user_input: dict[str, Any] | None = None
+    ) -> FlowResult:
         """Handle the start of the config flow."""
 
         if not user_input:
diff --git a/homeassistant/components/luftdaten/sensor.py b/homeassistant/components/luftdaten/sensor.py
index 975acf30266..e0bc64bc918 100644
--- a/homeassistant/components/luftdaten/sensor.py
+++ b/homeassistant/components/luftdaten/sensor.py
@@ -1,6 +1,8 @@
 """Support for Luftdaten sensors."""
 from __future__ import annotations
 
+from typing import cast
+
 from homeassistant.components.sensor import (
     SensorDeviceClass,
     SensorEntity,
@@ -131,4 +133,4 @@ class LuftdatenSensor(CoordinatorEntity, SensorEntity):
             or (value := self.coordinator.data.get(self.entity_description.key)) is None
         ):
             return None
-        return value
+        return cast(float, value)
diff --git a/mypy.ini b/mypy.ini
index 417e3d39d1c..6458bb83932 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -869,6 +869,17 @@ no_implicit_optional = true
 warn_return_any = true
 warn_unreachable = true
 
+[mypy-homeassistant.components.luftdaten.*]
+check_untyped_defs = true
+disallow_incomplete_defs = true
+disallow_subclassing_any = true
+disallow_untyped_calls = true
+disallow_untyped_decorators = true
+disallow_untyped_defs = true
+no_implicit_optional = true
+warn_return_any = true
+warn_unreachable = true
+
 [mypy-homeassistant.components.mailbox.*]
 check_untyped_defs = true
 disallow_incomplete_defs = true
@@ -1919,9 +1930,6 @@ ignore_errors = true
 [mypy-homeassistant.components.lovelace.*]
 ignore_errors = true
 
-[mypy-homeassistant.components.luftdaten.*]
-ignore_errors = true
-
 [mypy-homeassistant.components.lutron_caseta.*]
 ignore_errors = true
 
diff --git a/script/hassfest/mypy_config.py b/script/hassfest/mypy_config.py
index 220837fd10b..9878fb891e7 100644
--- a/script/hassfest/mypy_config.py
+++ b/script/hassfest/mypy_config.py
@@ -67,7 +67,6 @@ IGNORED_MODULES: Final[list[str]] = [
     "homeassistant.components.litejet.*",
     "homeassistant.components.litterrobot.*",
     "homeassistant.components.lovelace.*",
-    "homeassistant.components.luftdaten.*",
     "homeassistant.components.lutron_caseta.*",
     "homeassistant.components.lyric.*",
     "homeassistant.components.melcloud.*",