diff --git a/src/hdx/location/adminlevel.py b/src/hdx/location/adminlevel.py
index d3e1a24..43748c3 100755
--- a/src/hdx/location/adminlevel.py
+++ b/src/hdx/location/adminlevel.py
@@ -125,7 +125,7 @@ def setup_row(
         self,
         countryiso3: str,
         pcode: str,
-        adm_name: str,
+        adm_name: Optional[str],
         parent: Optional[str],
     ):
         """
@@ -134,7 +134,7 @@ def setup_row(
         Args:
             countryiso3 (str): Country
             pcode (str): P-code
-            adm_name (str): Administrative name
+            adm_name (Optional[str]): Administrative name (which can be None)
             parent (Optional[str]): Parent p-code
 
         Returns:
@@ -142,14 +142,17 @@ def setup_row(
         """
         self.pcode_lengths[countryiso3] = len(pcode)
         self.pcodes.append(pcode)
+        if adm_name is None:
+            adm_name = ""
         self.pcode_to_name[pcode] = adm_name
+        self.pcode_to_iso3[pcode] = countryiso3
+        if not adm_name:
+            return
 
         adm_name = normalise(adm_name)
         name_to_pcode = self.name_to_pcode.get(countryiso3, {})
         name_to_pcode[adm_name] = pcode
         self.name_to_pcode[countryiso3] = name_to_pcode
-        self.pcode_to_iso3[pcode] = countryiso3
-        self.pcode_to_iso3[pcode] = countryiso3
 
         if self.use_parent:
             name_parent_to_pcode = self.name_parent_to_pcode.get(
diff --git a/tests/hdx/location/test_adminlevel.py b/tests/hdx/location/test_adminlevel.py
index 0e6fb33..322258d 100755
--- a/tests/hdx/location/test_adminlevel.py
+++ b/tests/hdx/location/test_adminlevel.py
@@ -20,11 +20,11 @@ def config_parent(self):
 
     @pytest.fixture(scope="function")
     def url(self):
-        return "https://raw.githubusercontent.com/OCHA-DAP/hdx-python-country/main/tests/fixtures/global_pcodes_adm_1_2.csv"
+        return "https://raw.githubusercontent.com/OCHA-DAP/hdx-python-country/blank_adm_name/tests/fixtures/global_pcodes_adm_1_2.csv"
 
     @pytest.fixture(scope="function")
     def formats_url(self):
-        return "https://raw.githubusercontent.com/OCHA-DAP/hdx-python-country/main/tests/fixtures/global_pcode_lengths.csv"
+        return "https://raw.githubusercontent.com/OCHA-DAP/hdx-python-country/blank_adm_name/tests/fixtures/global_pcode_lengths.csv"
 
     def test_adminlevel(self, config):
         adminone = AdminLevel(config)
@@ -550,19 +550,19 @@ def test_adminlevel_pcode_formats(self, config, url, formats_url):
             "NG015",
             True,
         )
-        assert adminone.get_pcode("NER", "NER004", logname="test") == (
-            "NER004",
+        assert adminone.get_pcode("NER", "NE004", logname="test") == (
+            "NE004",
             True,
         )
         assert adminone.get_pcode("NER", "NE04", logname="test") == (
-            "NER004",
+            "NE004",
             True,
         )
-        assert adminone.get_pcode("NER", "NE004", logname="test") == (
-            "NER004",
+        assert adminone.get_pcode("NER", "NER004", logname="test") == (
+            "NE004",
             True,
         )
-        assert adminone.get_pcode("ABC", "NE004", logname="test") == (
+        assert adminone.get_pcode("ABC", "NER004", logname="test") == (
             None,
             True,
         )
@@ -642,11 +642,11 @@ def test_adminlevel_pcode_formats(self, config, url, formats_url):
             True,
         )
         assert admintwo.get_pcode("NER", "NER004009", logname="test") == (
-            "NER004009",
+            "NE004009",
             True,
         )
         assert admintwo.get_pcode("NER", "NE04009", logname="test") == (
-            "NER004009",
+            "NE004009",
             True,
         )
         # Algorithm inserts 0 to make NER000409 and hence fails (it has no
@@ -687,7 +687,7 @@ def test_adminlevel_pcode_formats(self, config, url, formats_url):
         # is not a valid admin1 (NER000) so the algorithm tries adding
         # the 0 prefix at the admin2 level instead and hence succeeds
         assert admintwo.get_pcode("NER", "NE00409", logname="test") == (
-            "NER004009",
+            "NE004009",
             True,
         )
         # we don't use the parent because it could have a pcode length issue
@@ -695,7 +695,7 @@ def test_adminlevel_pcode_formats(self, config, url, formats_url):
         assert admintwo.get_pcode(
             "NER", "NE00409", parent="blah", logname="test"
         ) == (
-            "NER004009",
+            "NE004009",
             True,
         )
         # The lookup in admin1 reveals that removing the 0 prefix from the
@@ -715,3 +715,11 @@ def test_adminlevel_pcode_formats(self, config, url, formats_url):
             "NG015001",
             True,
         )
+        assert admintwo.get_pcode("JAM", "JM10001", logname="test") == (
+            "JM10001",
+            True,
+        )
+        assert admintwo.get_pcode("JAM", "JAM10001", logname="test") == (
+            "JM10001",
+            True,
+        )