diff --git a/homeassistant/components/sql/sensor.py b/homeassistant/components/sql/sensor.py
index 26c899d4d3c..39a11049aaa 100644
--- a/homeassistant/components/sql/sensor.py
+++ b/homeassistant/components/sql/sensor.py
@@ -242,10 +242,15 @@ class SQLSensor(SensorEntity):
             for key, value in res.items():
                 if isinstance(value, decimal.Decimal):
                     value = float(value)
-                if isinstance(value, date):
+                elif isinstance(value, date):
                     value = value.isoformat()
+                elif isinstance(value, (bytes, bytearray)):
+                    value = f"0x{value.hex()}"
                 self._attr_extra_state_attributes[key] = value
 
+        if data is not None and isinstance(data, (bytes, bytearray)):
+            data = f"0x{data.hex()}"
+
         if data is not None and self._template is not None:
             self._attr_native_value = (
                 self._template.async_render_with_possible_json_value(data, None)
diff --git a/tests/components/sql/__init__.py b/tests/components/sql/__init__.py
index ea58d066325..c794f7a6b9a 100644
--- a/tests/components/sql/__init__.py
+++ b/tests/components/sql/__init__.py
@@ -63,6 +63,16 @@ YAML_CONFIG = {
     }
 }
 
+YAML_CONFIG_BINARY = {
+    "sql": {
+        CONF_DB_URL: "sqlite://",
+        CONF_NAME: "Get Binary Value",
+        CONF_QUERY: "SELECT cast(x'd34324324230392032' as blob) as value, cast(x'd343aa' as blob) as test_attr",
+        CONF_COLUMN_NAME: "value",
+        CONF_UNIQUE_ID: "unique_id_12345",
+    }
+}
+
 YAML_CONFIG_INVALID = {
     "sql": {
         CONF_QUERY: "SELECT 5 as value",
diff --git a/tests/components/sql/test_sensor.py b/tests/components/sql/test_sensor.py
index 32e5a778a87..400e3056d5a 100644
--- a/tests/components/sql/test_sensor.py
+++ b/tests/components/sql/test_sensor.py
@@ -17,7 +17,7 @@ from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
 from homeassistant.util import dt
 
-from . import YAML_CONFIG, init_integration
+from . import YAML_CONFIG, YAML_CONFIG_BINARY, init_integration
 
 from tests.common import MockConfigEntry, async_fire_time_changed
 
@@ -304,3 +304,15 @@ async def test_attributes_from_yaml_setup(
     assert state.attributes["device_class"] == SensorDeviceClass.DATA_RATE
     assert state.attributes["state_class"] == SensorStateClass.MEASUREMENT
     assert state.attributes["unit_of_measurement"] == "MiB"
+
+
+async def test_binary_data_from_yaml_setup(
+    recorder_mock: Recorder, hass: HomeAssistant
+) -> None:
+    """Test binary data from yaml config."""
+
+    assert await async_setup_component(hass, DOMAIN, YAML_CONFIG_BINARY)
+    await hass.async_block_till_done()
+    state = hass.states.get("sensor.get_binary_value")
+    assert state.state == "0xd34324324230392032"
+    assert state.attributes["test_attr"] == "0xd343aa"