diff --git a/app/code/Magento/Directory/Model/Country/Postcode/Config/Reader.php b/app/code/Magento/Directory/Model/Country/Postcode/Config/Reader.php
index 9ea0babbfd998..ed36ad3ace22b 100644
--- a/app/code/Magento/Directory/Model/Country/Postcode/Config/Reader.php
+++ b/app/code/Magento/Directory/Model/Country/Postcode/Config/Reader.php
@@ -12,7 +12,10 @@ class Reader extends \Magento\Framework\Config\Reader\Filesystem
      *
      * @var array
      */
-    protected $_idAttributes = ['/config/zip' => 'countryCode'];
+    protected $_idAttributes = [
+        '/config/zip' => 'countryCode',
+        '/config/zip/codes/code' => 'id',
+    ];
 
     /**
      * Construct the FileSystem Reader Class
diff --git a/dev/tests/integration/_files/Magento/TestModuleDirectoryZipCodes/etc/module.xml b/dev/tests/integration/_files/Magento/TestModuleDirectoryZipCodes/etc/module.xml
new file mode 100644
index 0000000000000..ce5ed9cb663a7
--- /dev/null
+++ b/dev/tests/integration/_files/Magento/TestModuleDirectoryZipCodes/etc/module.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0"?>
+<!--
+/**
+ * Copyright © 2016 Magento. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+-->
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
+    <module name="Magento_TestModuleDirectoryZipCodes" setup_version="0.0.1" active="true">
+        <sequence>
+            <module name="Magento_Directory"/>
+        </sequence>
+    </module>
+</config>
diff --git a/dev/tests/integration/_files/Magento/TestModuleDirectoryZipCodes/etc/zip_codes.xml b/dev/tests/integration/_files/Magento/TestModuleDirectoryZipCodes/etc/zip_codes.xml
new file mode 100644
index 0000000000000..a23d25f6047cd
--- /dev/null
+++ b/dev/tests/integration/_files/Magento/TestModuleDirectoryZipCodes/etc/zip_codes.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0"?>
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Directory:etc/zip_codes.xsd">
+    <zip countryCode="NL">
+        <codes>
+            <code id="pattern_1" active="true" example="test1">^[0-9]{4}[a-zA-Z]{2}$</code>
+            <code id="pattern_2" active="true" example="test2">^[0-5]{4}[a-z]{2}$</code>
+        </codes>
+    </zip>
+    <zip countryCode="NL_NEW">
+        <codes>
+            <code id="pattern_1" active="true" example="test1">^[0-2]{4}[A-Z]{2}$</code>
+        </codes>
+    </zip>
+</config>
diff --git a/dev/tests/integration/_files/Magento/TestModuleDirectoryZipCodes/registration.php b/dev/tests/integration/_files/Magento/TestModuleDirectoryZipCodes/registration.php
new file mode 100644
index 0000000000000..2ed368ecf3b23
--- /dev/null
+++ b/dev/tests/integration/_files/Magento/TestModuleDirectoryZipCodes/registration.php
@@ -0,0 +1,12 @@
+<?php
+/**
+ * Copyright © 2016 Magento. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+use Magento\Framework\Component\ComponentRegistrar;
+
+$registrar = new ComponentRegistrar();
+if ($registrar->getPath(ComponentRegistrar::MODULE, 'Magento_TestModuleDirectoryZipCodes') === null) {
+    ComponentRegistrar::register(ComponentRegistrar::MODULE, 'Magento_TestModuleDirectoryZipCodes', __DIR__);
+}
diff --git a/dev/tests/integration/testsuite/Magento/Directory/Model/Country/Postcode/Config/ReaderTest.php b/dev/tests/integration/testsuite/Magento/Directory/Model/Country/Postcode/Config/ReaderTest.php
new file mode 100644
index 0000000000000..dee37eca6438c
--- /dev/null
+++ b/dev/tests/integration/testsuite/Magento/Directory/Model/Country/Postcode/Config/ReaderTest.php
@@ -0,0 +1,43 @@
+<?php
+/**
+ * Copyright © 2016 Magento. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\Directory\Model\Country\Postcode\Config;
+
+class ReaderTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var \Magento\Directory\Model\Country\Postcode\Config\Reader
+     */
+    private $reader;
+
+    protected function setUp()
+    {
+        $this->reader = \Magento\TestFramework\Helper\Bootstrap::getObjectManager()->create(
+            \Magento\Directory\Model\Country\Postcode\Config\Reader::class
+        );
+    }
+
+    public function testRead()
+    {
+        $result = $this->reader->read();
+
+        $this->assertArrayHasKey('NL', $result);
+        $this->assertArrayHasKey('pattern_1', $result['NL']);
+        $this->assertArrayHasKey('pattern_2', $result['NL']);
+
+        $this->assertEquals('test1', $result['NL']['pattern_1']['example']);
+        $this->assertEquals('^[0-9]{4}[a-zA-Z]{2}$', $result['NL']['pattern_1']['pattern']);
+
+        $this->assertEquals('test2', $result['NL']['pattern_2']['example']);
+        $this->assertEquals('^[0-5]{4}[a-z]{2}$', $result['NL']['pattern_2']['pattern']);
+
+        $this->assertArrayHasKey('NL_NEW', $result);
+        $this->assertArrayHasKey('pattern_1', $result['NL_NEW']);
+
+        $this->assertEquals('test1', $result['NL_NEW']['pattern_1']['example']);
+        $this->assertEquals('^[0-2]{4}[A-Z]{2}$', $result['NL_NEW']['pattern_1']['pattern']);
+    }
+}