diff --git a/homeassistant/components/hydrawise/binary_sensor.py b/homeassistant/components/hydrawise/binary_sensor.py
index bc9b8722c58ccd..63fe28cd40048d 100644
--- a/homeassistant/components/hydrawise/binary_sensor.py
+++ b/homeassistant/components/hydrawise/binary_sensor.py
@@ -92,6 +92,6 @@ def _handle_coordinator_update(self) -> None:
         if self.entity_description.key == "status":
             self._attr_is_on = self.coordinator.api.status == "All good!"
         elif self.entity_description.key == "is_watering":
-            relay_data = self.coordinator.api.relays[self.data["relay"] - 1]
+            relay_data = self.coordinator.api.relays_by_zone_number[self.data["relay"]]
             self._attr_is_on = relay_data["timestr"] == "Now"
         super()._handle_coordinator_update()
diff --git a/homeassistant/components/hydrawise/sensor.py b/homeassistant/components/hydrawise/sensor.py
index 9214b9daeaca09..fa82c058f5b107 100644
--- a/homeassistant/components/hydrawise/sensor.py
+++ b/homeassistant/components/hydrawise/sensor.py
@@ -77,7 +77,7 @@ class HydrawiseSensor(HydrawiseEntity, SensorEntity):
     def _handle_coordinator_update(self) -> None:
         """Get the latest data and updates the states."""
         LOGGER.debug("Updating Hydrawise sensor: %s", self.name)
-        relay_data = self.coordinator.api.relays[self.data["relay"] - 1]
+        relay_data = self.coordinator.api.relays_by_zone_number[self.data["relay"]]
         if self.entity_description.key == "watering_time":
             if relay_data["timestr"] == "Now":
                 self._attr_native_value = int(relay_data["run"] / 60)
diff --git a/homeassistant/components/hydrawise/switch.py b/homeassistant/components/hydrawise/switch.py
index dbd2c08b28ea91..0dd694a47d6ddb 100644
--- a/homeassistant/components/hydrawise/switch.py
+++ b/homeassistant/components/hydrawise/switch.py
@@ -99,26 +99,26 @@ def __init__(
 
     def turn_on(self, **kwargs: Any) -> None:
         """Turn the device on."""
-        relay_data = self.data["relay"] - 1
+        zone_number = self.data["relay"]
         if self.entity_description.key == "manual_watering":
-            self.coordinator.api.run_zone(self._default_watering_timer, relay_data)
+            self.coordinator.api.run_zone(self._default_watering_timer, zone_number)
         elif self.entity_description.key == "auto_watering":
-            self.coordinator.api.suspend_zone(0, relay_data)
+            self.coordinator.api.suspend_zone(0, zone_number)
 
     def turn_off(self, **kwargs: Any) -> None:
         """Turn the device off."""
-        relay_data = self.data["relay"] - 1
+        zone_number = self.data["relay"]
         if self.entity_description.key == "manual_watering":
-            self.coordinator.api.run_zone(0, relay_data)
+            self.coordinator.api.run_zone(0, zone_number)
         elif self.entity_description.key == "auto_watering":
-            self.coordinator.api.suspend_zone(365, relay_data)
+            self.coordinator.api.suspend_zone(365, zone_number)
 
     @callback
     def _handle_coordinator_update(self) -> None:
         """Update device state."""
-        relay_data = self.data["relay"] - 1
+        zone_number = self.data["relay"]
         LOGGER.debug("Updating Hydrawise switch: %s", self.name)
-        timestr = self.coordinator.api.relays[relay_data]["timestr"]
+        timestr = self.coordinator.api.relays_by_zone_number[zone_number]["timestr"]
         if self.entity_description.key == "manual_watering":
             self._attr_is_on = timestr == "Now"
         elif self.entity_description.key == "auto_watering":