diff --git a/source/_docs/configuration/templating.markdown b/source/_docs/configuration/templating.markdown
index a6264397712..0905b2e59b8 100644
--- a/source/_docs/configuration/templating.markdown
+++ b/source/_docs/configuration/templating.markdown
@@ -369,6 +369,7 @@ The same thing can also be expressed as a test:
 
 ### Areas
 
+- `areas()` returns the full list of area IDs
 - `area_id(lookup_value)` returns the area ID for a given device ID, entity ID, or area name. Can also be used as a filter.
 - `area_name(lookup_value)` returns the area name for a given device ID, entity ID, or area ID. Can also be used as a filter.
 - `area_entities(area_name_or_id)` returns the list of entity IDs tied to a given area ID or name. Can also be used as a filter.
@@ -378,6 +379,10 @@ The same thing can also be expressed as a test:
 
 {% raw %}
 
+```text
+{{ areas() }}  # ['area_id']
+```
+
 ```text
 {{ area_id('Living Room') }}  # 'deadbeefdeadbeefdeadbeefdeadbeef'
 ```