diff --git a/backend/src/controllers/user.js b/backend/src/controllers/user.js
index 6fb8f11..33074f1 100644
--- a/backend/src/controllers/user.js
+++ b/backend/src/controllers/user.js
@@ -10,12 +10,13 @@ const { sanitizeForEmail } = require('../utils/sanitize');
 async function updateProfile(req, res, next) {
   try {
     const userId = req.user.id;
-    const { firstName, lastName, email } = req.body;
+    const { firstName, lastName, email, wsdcId } = req.body;
 
     // Build update data
     const updateData = {};
     if (firstName !== undefined) updateData.firstName = firstName;
     if (lastName !== undefined) updateData.lastName = lastName;
+    if (wsdcId !== undefined) updateData.wsdcId = wsdcId || null; // Allow empty string to clear WSDC ID
 
     // Check if email is being changed
     const currentUser = await prisma.user.findUnique({
diff --git a/backend/src/middleware/validators.js b/backend/src/middleware/validators.js
index 756031b..481002e 100644
--- a/backend/src/middleware/validators.js
+++ b/backend/src/middleware/validators.js
@@ -131,6 +131,11 @@ const updateProfileValidation = [
     .isEmail()
     .withMessage('Must be a valid email address')
     .normalizeEmail(),
+  body('wsdcId')
+    .optional()
+    .trim()
+    .matches(/^\d{0,10}$/)
+    .withMessage('WSDC ID must be numeric and up to 10 digits'),
   handleValidationErrors,
 ];
 
diff --git a/backend/src/routes/users.js b/backend/src/routes/users.js
index cd05e59..6466eb2 100644
--- a/backend/src/routes/users.js
+++ b/backend/src/routes/users.js
@@ -17,6 +17,9 @@ router.get('/me', authenticate, async (req, res, next) => {
         username: true,
         email: true,
         emailVerified: true,
+        firstName: true,
+        lastName: true,
+        wsdcId: true,
         avatar: true,
         createdAt: true,
         updatedAt: true,
diff --git a/frontend/src/pages/ProfilePage.jsx b/frontend/src/pages/ProfilePage.jsx
index f3cd7d3..9ba5fec 100644
--- a/frontend/src/pages/ProfilePage.jsx
+++ b/frontend/src/pages/ProfilePage.jsx
@@ -1,8 +1,8 @@
-import { useState } from 'react';
+import { useState, useEffect } from 'react';
 import { useAuth } from '../contexts/AuthContext';
 import { authAPI } from '../services/api';
 import Layout from '../components/layout/Layout';
-import { User, Mail, Lock, Save, AlertCircle, CheckCircle, Loader2 } from 'lucide-react';
+import { User, Mail, Lock, Save, AlertCircle, CheckCircle, Loader2, Hash } from 'lucide-react';
 
 const ProfilePage = () => {
   const { user, updateUser } = useAuth();
@@ -10,10 +10,23 @@ const ProfilePage = () => {
 
   // Profile edit state
   const [profileData, setProfileData] = useState({
-    firstName: user?.firstName || '',
-    lastName: user?.lastName || '',
-    email: user?.email || '',
+    firstName: '',
+    lastName: '',
+    email: '',
+    wsdcId: '',
   });
+
+  // Load user data when component mounts or user changes
+  useEffect(() => {
+    if (user) {
+      setProfileData({
+        firstName: user.firstName || '',
+        lastName: user.lastName || '',
+        email: user.email || '',
+        wsdcId: user.wsdcId || '',
+      });
+    }
+  }, [user]);
   const [profileLoading, setProfileLoading] = useState(false);
   const [profileMessage, setProfileMessage] = useState('');
   const [profileError, setProfileError] = useState('');
@@ -210,6 +223,33 @@ const ProfilePage = () => {
                     </div>
                   </div>
 
+                  {/* WSDC ID */}
+                  <div>
+                    <label className="block text-sm font-medium text-gray-700 mb-2">
+                      WSDC ID
+                    </label>
+                    <div className="relative">
+                      <div className="absolute inset-y-0 left-0 pl-3 flex items-center pointer-events-none">
+                        <Hash className="h-5 w-5 text-gray-400" />
+                      </div>
+                      <input
+                        type="text"
+                        name="wsdcId"
+                        value={profileData.wsdcId}
+                        onChange={(e) => {
+                          const value = e.target.value.replace(/\D/g, '');
+                          setProfileData({ ...profileData, wsdcId: value });
+                        }}
+                        className="pl-10 w-full px-3 py-2 border border-gray-300 rounded-md focus:ring-primary-500 focus:border-primary-500"
+                        placeholder="12345"
+                        maxLength={10}
+                      />
+                    </div>
+                    <p className="text-xs text-gray-500 mt-1">
+                      Your World Swing Dance Council ID (optional)
+                    </p>
+                  </div>
+
                   {/* Email */}
                   <div>
                     <label className="block text-sm font-medium text-gray-700 mb-2">