diff --git a/homeassistant/components/eafm/sensor.py b/homeassistant/components/eafm/sensor.py
index ed663920a80..a695a38bb4b 100644
--- a/homeassistant/components/eafm/sensor.py
+++ b/homeassistant/components/eafm/sensor.py
@@ -7,7 +7,7 @@ import async_timeout
 
 from homeassistant.components.sensor import SensorEntity, SensorStateClass
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import ATTR_ATTRIBUTION, LENGTH_METERS
+from homeassistant.const import LENGTH_METERS
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 from homeassistant.helpers.device_registry import DeviceEntryType
@@ -90,7 +90,10 @@ async def async_setup_entry(
 class Measurement(CoordinatorEntity, SensorEntity):
     """A gauge at a flood monitoring station."""
 
-    attribution = "This uses Environment Agency flood and river level data from the real-time data API"
+    _attr_attribution = (
+        "This uses Environment Agency flood and river level data "
+        "from the real-time data API"
+    )
     _attr_state_class = SensorStateClass.MEASUREMENT
 
     def __init__(self, coordinator, key):
@@ -166,11 +169,6 @@ class Measurement(CoordinatorEntity, SensorEntity):
             return None
         return UNIT_MAPPING.get(measure["unit"], measure["unitName"])
 
-    @property
-    def extra_state_attributes(self):
-        """Return the sensor specific state attributes."""
-        return {ATTR_ATTRIBUTION: self.attribution}
-
     @property
     def native_value(self):
         """Return the current sensor value."""
diff --git a/homeassistant/components/entur_public_transport/sensor.py b/homeassistant/components/entur_public_transport/sensor.py
index e980ef0e396..fd470ff7c9f 100644
--- a/homeassistant/components/entur_public_transport/sensor.py
+++ b/homeassistant/components/entur_public_transport/sensor.py
@@ -8,7 +8,6 @@ import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA, SensorEntity
 from homeassistant.const import (
-    ATTR_ATTRIBUTION,
     CONF_LATITUDE,
     CONF_LONGITUDE,
     CONF_NAME,
@@ -25,8 +24,6 @@ import homeassistant.util.dt as dt_util
 
 API_CLIENT_NAME = "homeassistant-homeassistant"
 
-ATTRIBUTION = "Data provided by entur.org under NLOD"
-
 CONF_STOP_IDS = "stop_ids"
 CONF_EXPAND_PLATFORMS = "expand_platforms"
 CONF_WHITELIST_LINES = "line_whitelist"
@@ -160,6 +157,8 @@ class EnturProxy:
 class EnturPublicTransportSensor(SensorEntity):
     """Implementation of a Entur public transport sensor."""
 
+    _attr_attribution = "Data provided by entur.org under NLOD"
+
     def __init__(
         self, api: EnturProxy, name: str, stop: str, show_on_map: bool
     ) -> None:
@@ -185,7 +184,6 @@ class EnturPublicTransportSensor(SensorEntity):
     @property
     def extra_state_attributes(self) -> dict:
         """Return the state attributes."""
-        self._attributes[ATTR_ATTRIBUTION] = ATTRIBUTION
         self._attributes[ATTR_STOP_ID] = self._stop
         return self._attributes
 
diff --git a/homeassistant/components/etherscan/sensor.py b/homeassistant/components/etherscan/sensor.py
index 9f0c6f7eca9..d98ddcba23c 100644
--- a/homeassistant/components/etherscan/sensor.py
+++ b/homeassistant/components/etherscan/sensor.py
@@ -7,14 +7,12 @@ from pyetherscan import get_balance
 import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA, SensorEntity
-from homeassistant.const import ATTR_ATTRIBUTION, CONF_ADDRESS, CONF_NAME, CONF_TOKEN
+from homeassistant.const import CONF_ADDRESS, CONF_NAME, CONF_TOKEN
 from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
-ATTRIBUTION = "Data provided by etherscan.io"
-
 CONF_TOKEN_ADDRESS = "token_address"
 
 SCAN_INTERVAL = timedelta(minutes=5)
@@ -54,6 +52,8 @@ def setup_platform(
 class EtherscanSensor(SensorEntity):
     """Representation of an Etherscan.io sensor."""
 
+    _attr_attribution = "Data provided by etherscan.io"
+
     def __init__(self, name, address, token, token_address):
         """Initialize the sensor."""
         self._name = name
@@ -78,11 +78,6 @@ class EtherscanSensor(SensorEntity):
         """Return the unit of measurement this sensor expresses itself in."""
         return self._unit_of_measurement
 
-    @property
-    def extra_state_attributes(self):
-        """Return the state attributes of the sensor."""
-        return {ATTR_ATTRIBUTION: ATTRIBUTION}
-
     def update(self) -> None:
         """Get the latest state of the sensor."""
 
diff --git a/homeassistant/components/fitbit/sensor.py b/homeassistant/components/fitbit/sensor.py
index c4e9970691d..78929307c02 100644
--- a/homeassistant/components/fitbit/sensor.py
+++ b/homeassistant/components/fitbit/sensor.py
@@ -19,12 +19,7 @@ from homeassistant.components.sensor import (
     PLATFORM_SCHEMA as PARENT_PLATFORM_SCHEMA,
     SensorEntity,
 )
-from homeassistant.const import (
-    ATTR_ATTRIBUTION,
-    CONF_CLIENT_ID,
-    CONF_CLIENT_SECRET,
-    CONF_UNIT_SYSTEM,
-)
+from homeassistant.const import CONF_CLIENT_ID, CONF_CLIENT_SECRET, CONF_UNIT_SYSTEM
 from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
@@ -345,6 +340,7 @@ class FitbitSensor(SensorEntity):
     """Implementation of a Fitbit sensor."""
 
     entity_description: FitbitSensorEntityDescription
+    _attr_attribution = ATTRIBUTION
 
     def __init__(
         self,
@@ -396,7 +392,7 @@ class FitbitSensor(SensorEntity):
     @property
     def extra_state_attributes(self) -> dict[str, str | None]:
         """Return the state attributes."""
-        attrs: dict[str, str | None] = {ATTR_ATTRIBUTION: ATTRIBUTION}
+        attrs: dict[str, str | None] = {}
 
         if self.extra is not None:
             attrs["model"] = self.extra.get("deviceVersion")
diff --git a/homeassistant/components/flick_electric/sensor.py b/homeassistant/components/flick_electric/sensor.py
index 215c9a88f6b..d0ff91d7094 100644
--- a/homeassistant/components/flick_electric/sensor.py
+++ b/homeassistant/components/flick_electric/sensor.py
@@ -8,12 +8,7 @@ from pyflick import FlickAPI, FlickPrice
 
 from homeassistant.components.sensor import SensorEntity
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import (
-    ATTR_ATTRIBUTION,
-    ATTR_FRIENDLY_NAME,
-    CURRENCY_CENT,
-    ENERGY_KILO_WATT_HOUR,
-)
+from homeassistant.const import ATTR_FRIENDLY_NAME, CURRENCY_CENT, ENERGY_KILO_WATT_HOUR
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.util.dt import utcnow
@@ -24,7 +19,6 @@ _LOGGER = logging.getLogger(__name__)
 
 SCAN_INTERVAL = timedelta(minutes=5)
 
-ATTRIBUTION = "Data provided by Flick Electric"
 FRIENDLY_NAME = "Flick Power Price"
 
 
@@ -40,6 +34,7 @@ async def async_setup_entry(
 class FlickPricingSensor(SensorEntity):
     """Entity object for Flick Electric sensor."""
 
+    _attr_attribution = "Data provided by Flick Electric"
     _attr_native_unit_of_measurement = f"{CURRENCY_CENT}/{ENERGY_KILO_WATT_HOUR}"
 
     def __init__(self, api: FlickAPI) -> None:
@@ -47,7 +42,6 @@ class FlickPricingSensor(SensorEntity):
         self._api: FlickAPI = api
         self._price: FlickPrice = None
         self._attributes: dict[str, Any] = {
-            ATTR_ATTRIBUTION: ATTRIBUTION,
             ATTR_FRIENDLY_NAME: FRIENDLY_NAME,
         }
 
diff --git a/homeassistant/components/geonetnz_volcano/sensor.py b/homeassistant/components/geonetnz_volcano/sensor.py
index e48a4cec0cf..e78641f99e2 100644
--- a/homeassistant/components/geonetnz_volcano/sensor.py
+++ b/homeassistant/components/geonetnz_volcano/sensor.py
@@ -6,7 +6,6 @@ import logging
 from homeassistant.components.sensor import SensorEntity
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
-    ATTR_ATTRIBUTION,
     ATTR_LATITUDE,
     ATTR_LONGITUDE,
     LENGTH_KILOMETERS,
@@ -124,7 +123,7 @@ class GeonetnzVolcanoSensor(SensorEntity):
             self._distance = round(feed_entry.distance_to_home, 1)
         self._latitude = round(feed_entry.coordinates[0], 5)
         self._longitude = round(feed_entry.coordinates[1], 5)
-        self._attribution = feed_entry.attribution
+        self._attr_attribution = feed_entry.attribution
         self._alert_level = feed_entry.alert_level
         self._activity = feed_entry.activity
         self._hazards = feed_entry.hazards
@@ -159,7 +158,6 @@ class GeonetnzVolcanoSensor(SensorEntity):
         attributes = {}
         for key, value in (
             (ATTR_EXTERNAL_ID, self._external_id),
-            (ATTR_ATTRIBUTION, self._attribution),
             (ATTR_ACTIVITY, self._activity),
             (ATTR_HAZARDS, self._hazards),
             (ATTR_LONGITUDE, self._longitude),
diff --git a/homeassistant/components/gios/sensor.py b/homeassistant/components/gios/sensor.py
index 2d32b8261f3..aa528f3d1d3 100644
--- a/homeassistant/components/gios/sensor.py
+++ b/homeassistant/components/gios/sensor.py
@@ -15,7 +15,6 @@ from homeassistant.components.sensor import (
 )
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
-    ATTR_ATTRIBUTION,
     ATTR_NAME,
     CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
     CONF_NAME,
@@ -154,6 +153,7 @@ async def async_setup_entry(
 class GiosSensor(CoordinatorEntity[GiosDataUpdateCoordinator], SensorEntity):
     """Define an GIOS sensor."""
 
+    _attr_attribution = ATTRIBUTION
     _attr_has_entity_name = True
     entity_description: GiosSensorEntityDescription
 
@@ -174,7 +174,6 @@ class GiosSensor(CoordinatorEntity[GiosDataUpdateCoordinator], SensorEntity):
         )
         self._attr_unique_id = f"{coordinator.gios.station_id}-{description.key}"
         self._attrs: dict[str, Any] = {
-            ATTR_ATTRIBUTION: ATTRIBUTION,
             ATTR_STATION: self.coordinator.gios.station_name,
         }
         self.entity_description = description
diff --git a/homeassistant/components/google_travel_time/sensor.py b/homeassistant/components/google_travel_time/sensor.py
index 524fae4a128..3ea38af1f27 100644
--- a/homeassistant/components/google_travel_time/sensor.py
+++ b/homeassistant/components/google_travel_time/sensor.py
@@ -10,7 +10,6 @@ from googlemaps.distance_matrix import distance_matrix
 from homeassistant.components.sensor import SensorEntity
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
-    ATTR_ATTRIBUTION,
     CONF_API_KEY,
     CONF_MODE,
     CONF_NAME,
@@ -104,6 +103,8 @@ async def async_setup_entry(
 class GoogleTravelTimeSensor(SensorEntity):
     """Representation of a Google travel time sensor."""
 
+    _attr_attribution = ATTRIBUTION
+
     def __init__(self, config_entry, name, api_key, origin, destination, client):
         """Initialize the sensor."""
         self._name = name
@@ -178,7 +179,6 @@ class GoogleTravelTimeSensor(SensorEntity):
             res["distance"] = _data["distance"]["text"]
         res["origin"] = self._resolved_origin
         res["destination"] = self._resolved_destination
-        res[ATTR_ATTRIBUTION] = ATTRIBUTION
         return res
 
     @property
diff --git a/homeassistant/components/gtfs/sensor.py b/homeassistant/components/gtfs/sensor.py
index 2ea0c23f213..9b733d41502 100644
--- a/homeassistant/components/gtfs/sensor.py
+++ b/homeassistant/components/gtfs/sensor.py
@@ -16,7 +16,7 @@ from homeassistant.components.sensor import (
     SensorDeviceClass,
     SensorEntity,
 )
-from homeassistant.const import ATTR_ATTRIBUTION, CONF_NAME, CONF_OFFSET, STATE_UNKNOWN
+from homeassistant.const import CONF_NAME, CONF_OFFSET, STATE_UNKNOWN
 from homeassistant.core import HomeAssistant
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
@@ -648,6 +648,11 @@ class GTFSDepartureSensor(SensorEntity):
             # Assign attributes, icon and name
             self.update_attributes()
 
+            if self._agency:
+                self._attr_attribution = self._agency.agency_name
+            else:
+                self._attr_attribution = None
+
             if self._route:
                 self._icon = ICONS.get(self._route.route_type, ICON)
             else:
@@ -702,11 +707,6 @@ class GTFSDepartureSensor(SensorEntity):
         elif ATTR_INFO in self._attributes:
             del self._attributes[ATTR_INFO]
 
-        if self._agency:
-            self._attributes[ATTR_ATTRIBUTION] = self._agency.agency_name
-        elif ATTR_ATTRIBUTION in self._attributes:
-            del self._attributes[ATTR_ATTRIBUTION]
-
         # Add extra metadata
         key = "agency_id"
         if self._agency and key not in self._attributes: