diff --git a/changelog.d/local-authority-2023-unitaries.added.md b/changelog.d/local-authority-2023-unitaries.added.md
new file mode 100644
index 0000000000..5fdc468908
--- /dev/null
+++ b/changelog.d/local-authority-2023-unitaries.added.md
@@ -0,0 +1 @@
+- Add the six April 2023 unitary authorities (Cumberland, North Northamptonshire, North Yorkshire, Somerset, West Northamptonshire, Westmorland and Furness) to the `LocalAuthority` enum, so a dataset on the April 2023 local authority roster can supply `local_authority` for every household.
diff --git a/policyengine_uk/variables/household/demographic/locations.py b/policyengine_uk/variables/household/demographic/locations.py
index 0c67fb0046..2b96b369e9 100644
--- a/policyengine_uk/variables/household/demographic/locations.py
+++ b/policyengine_uk/variables/household/demographic/locations.py
@@ -295,6 +295,7 @@ class LocalAuthority(Enum):
     CRAVEN = "Craven"
     CRAWLEY = "Crawley"
     CROYDON = "Croydon"
+    CUMBERLAND = "Cumberland"
     DACORUM = "Dacorum"
     DARLINGTON = "Darlington"
     DARTFORD = "Dartford"
@@ -438,10 +439,12 @@ class LocalAuthority(Enum):
     NORTH_LANARKSHIRE = "North Lanarkshire"
     NORTH_LINCOLNSHIRE = "North Lincolnshire"
     NORTH_NORFOLK = "North Norfolk"
+    NORTH_NORTHAMPTONSHIRE = "North Northamptonshire"
     NORTH_SOMERSET = "North Somerset"
     NORTH_TYNESIDE = "North Tyneside"
     NORTH_WARWICKSHIRE = "North Warwickshire"
     NORTH_WEST_LEICESTERSHIRE = "North West Leicestershire"
+    NORTH_YORKSHIRE = "North Yorkshire"
     NORTHAMPTON = "Northampton"
     NORTHUMBERLAND = "Northumberland"
     NORWICH = "Norwich"
@@ -493,6 +496,7 @@ class LocalAuthority(Enum):
     SHROPSHIRE = "Shropshire"
     SLOUGH = "Slough"
     SOLIHULL = "Solihull"
+    SOMERSET = "Somerset"
     SOMERSET_WEST_AND_TAUNTON = "Somerset West and Taunton"
     SOUTH_AYRSHIRE = "South Ayrshire"
     SOUTH_CAMBRIDGESHIRE = "South Cambridgeshire"
@@ -569,9 +573,11 @@ class LocalAuthority(Enum):
     WEST_LANCASHIRE = "West Lancashire"
     WEST_LINDSEY = "West Lindsey"
     WEST_LOTHIAN = "West Lothian"
+    WEST_NORTHAMPTONSHIRE = "West Northamptonshire"
     WEST_OXFORDSHIRE = "West Oxfordshire"
     WEST_SUFFOLK = "West Suffolk"
     WESTMINSTER = "Westminster"
+    WESTMORLAND_AND_FURNESS = "Westmorland and Furness"
     WIGAN = "Wigan"
     WILTSHIRE = "Wiltshire"
     WINCHESTER = "Winchester"