diff --git a/CRM/Core/BAO/County.php b/CRM/Core/BAO/County.php
new file mode 100644
index 000000000000..099aa1e0e2e2
--- /dev/null
+++ b/CRM/Core/BAO/County.php
@@ -0,0 +1,35 @@
+<?php
+/*
+ +--------------------------------------------------------------------+
+ | Copyright CiviCRM LLC. All rights reserved.                        |
+ |                                                                    |
+ | This work is published under the GNU AGPLv3 license with some      |
+ | permitted exceptions and without any warranty. For full license    |
+ | and copyright information, see https://civicrm.org/licensing       |
+ +--------------------------------------------------------------------+
+ */
+
+/**
+ *
+ * @package CRM
+ * @copyright CiviCRM LLC https://civicrm.org/licensing
+ */
+
+use Civi\Core\Event\PostEvent;
+use Civi\Core\HookInterface;
+
+/**
+ * This class contains functions for managing Counties.
+ */
+class CRM_Core_BAO_County extends CRM_Core_DAO_County implements HookInterface {
+
+  /**
+   * Callback for hook_civicrm_post().
+   *
+   * @param \Civi\Core\Event\PostEvent $event
+   */
+  public static function self_hook_civicrm_post(PostEvent $event): void {
+    unset(\Civi::$statics['CRM_Core_PseudoConstant']);
+  }
+
+}
diff --git a/Civi/Api4/County.php b/Civi/Api4/County.php
new file mode 100644
index 000000000000..cac7723e49f1
--- /dev/null
+++ b/Civi/Api4/County.php
@@ -0,0 +1,22 @@
+<?php
+/*
+ +--------------------------------------------------------------------+
+ | Copyright CiviCRM LLC. All rights reserved.                        |
+ |                                                                    |
+ | This work is published under the GNU AGPLv3 license with some      |
+ | permitted exceptions and without any warranty. For full license    |
+ | and copyright information, see https://civicrm.org/licensing       |
+ +--------------------------------------------------------------------+
+ */
+namespace Civi\Api4;
+
+/**
+ * Country entity.
+ *
+ * @searchable secondary
+ * @since 5.56
+ * @package Civi\Api4
+ */
+class County extends Generic\DAOEntity {
+
+}
diff --git a/tests/phpunit/CRM/Contact/Import/Form/data/individual_country_state_county_with_related.csv b/tests/phpunit/CRM/Contact/Import/Form/data/individual_country_state_county_with_related.csv
index 203431d3a84a..c6b5a3e5a982 100644
--- a/tests/phpunit/CRM/Contact/Import/Form/data/individual_country_state_county_with_related.csv
+++ b/tests/phpunit/CRM/Contact/Import/Form/data/individual_country_state_county_with_related.csv
@@ -1,9 +1,9 @@
 First Name,Last Name,Email,County,Country,State,Custom field state,Custom Field Country,Address Custom Field Country,Address Custom field state,Mum Name,Mum Last name,Mum email,Mum State,Mum Country,Mum County,Address Mum Custom Field Country,Address Mum Custom field state,Mum Custom Field Country,Mum Custom field State,expected,error_value
-Susie,Jones,susie@example.com,,ABC,,,,,,Mum,Jones,mum@example.com,,,,,,,,Invalid,ABC
-Susie,Jones,susie@example.com,,,,,,,,Mum,Jones,mum@example.com,NSW,ABC,,,,,,Invalid,ABC
-Susie,Jones,susie@example.com,,Australia,NSW,NSW,Australia,Australia,NSW,Mum,Jones,mum@example.com,NSW,Australia,,Australia,NSW,Australia,NSW,Valid,
-Susie,Jones,susie@example.com,,AU,New South Wales,New South Wales,AU,AU,New South Wales,Mum,Jones,mum@example.com,New South Wales,AU,,AU,New South Wales,Australia,New South Wales,Valid,
-Susie,Jones,susie@example.com,,1013,New South Wales,,1013,1013,New South Wales,Mum,Jones,mum@example.com,New South Wales,1013,,1013,New South Wales,1013,New South Wales,Valid,
-Susie,Jones,susie@example.com,,AUSTRALIA,,,,,,Mum,Jones,mum@example.com,,austRalia,,,,,,Valid,
-Susie,Jones,susie@example.com,,AU,NEW South Wales,NEW South Wales,AU,AU,NEW South Wales,Mum,Jones,mum@example.com,NEW South Wales,AU,,AU,NEW South Wales,Australia,NEW South Wales,Valid,
-Susie,Jones,susie@example.com,,AU,My own personal fiefdom,My own personal fiefdom,AU,AU,My own personal fiefdom,Mum,Jones,mum@example.com,My own personal fiefdom,AU,,AU,My own personal fiefdom,Australia,My own personal fiefdom,Invalid,rando
+Susie,Jones,susie@example.com,,ABC,,,,,,Mum,Jones,mum@example.com,,,Farnell,,,,,Invalid,ABC
+Susie,Jones,susie@example.com,,,,,,,,Mum,Jones,mum@example.com,NSW,ABC,Farnell,,,,,Invalid,ABC
+Susie,Jones,susie@example.com,farnell,Australia,NSW,NSW,Australia,Australia,NSW,Mum,Jones,mum@example.com,NSW,Australia,Farnell,Australia,NSW,Australia,NSW,Valid,
+Susie,Jones,susie@example.com,farnell,AU,New South Wales,New South Wales,AU,AU,New South Wales,Mum,Jones,mum@example.com,New South Wales,AU,Farnell,AU,New South Wales,Australia,New South Wales,Valid,
+Susie,Jones,susie@example.com,FARNELL,1013,New South Wales,,1013,1013,New South Wales,Mum,Jones,mum@example.com,New South Wales,1013,Farnell,1013,New South Wales,1013,New South Wales,Valid,
+Susie,Jones,susie@example.com,Farnell,AUSTRALIA,,,,,,Mum,Jones,mum@example.com,,austRalia,Farnell,,,,,Valid,
+Susie,Jones,susie@example.com,Farnell,AU,NEW South Wales,NEW South Wales,AU,AU,NEW South Wales,Mum,Jones,mum@example.com,NEW South Wales,AU,Farnell,AU,NEW South Wales,Australia,NEW South Wales,Valid,
+Susie,Jones,susie@example.com,,AU,My own personal fiefdom,My own personal fiefdom,AU,AU,My own personal fiefdom,Mum,Jones,mum@example.com,My own personal fiefdom,AU,Farnell,AU,My own personal fiefdom,Australia,My own personal fiefdom,Invalid,rando
diff --git a/tests/phpunit/CRM/Contact/Import/Parser/ContactTest.php b/tests/phpunit/CRM/Contact/Import/Parser/ContactTest.php
index 7d1f215ac841..a983d65c2ac9 100644
--- a/tests/phpunit/CRM/Contact/Import/Parser/ContactTest.php
+++ b/tests/phpunit/CRM/Contact/Import/Parser/ContactTest.php
@@ -17,6 +17,7 @@
 use Civi\Api4\Address;
 use Civi\Api4\Contact;
 use Civi\Api4\ContactType;
+use Civi\Api4\County;
 use Civi\Api4\DedupeRuleGroup;
 use Civi\Api4\Email;
 use Civi\Api4\Group;
@@ -1292,6 +1293,11 @@ public function testImportGenders(): void {
    * @throws \CRM_Core_Exception
    */
   public function testImportCountryStateCounty(): void {
+    $countyID = County::create()->setValues([
+      'name' => 'Farnell',
+      'abbreviation' => '',
+      'state_province_id' => 1640,
+    ])->execute()->first()['id'];
     $childKey = $this->getRelationships()['Child of']['id'] . '_a_b';
     $addressCustomGroupID = $this->createCustomGroup(['extends' => 'Address', 'name' => 'Address']);
     $contactCustomGroupID = $this->createCustomGroup(['extends' => 'Contact', 'name' => 'Contact']);
@@ -1338,6 +1344,7 @@ public function testImportCountryStateCounty(): void {
     $this->importCSV($csv, $mapper);
     $contacts = $this->getImportedContacts();
     foreach ($contacts as $contact) {
+      $this->assertEquals($countyID, $contact['address'][0]['county_id']);
       $this->assertEquals(1013, $contact['address'][0]['country_id']);
       $this->assertEquals(1640, $contact['address'][0]['state_province_id']);
     }