diff --git a/src/process/twitter_process.py b/src/process/twitter_process.py
index 93c6371..bee7017 100644
--- a/src/process/twitter_process.py
+++ b/src/process/twitter_process.py
@@ -1,7 +1,10 @@
+import json
 import os
 from dataclasses import dataclass
 from datetime import datetime
 
+from utils import normalize_directory
+
 
 @dataclass
 class GeneralUser:
@@ -29,3 +32,31 @@ class Posting:
     date: datetime
 
 
+def load_users_popularity(user_dir: str = './data/twitter/user/') -> list[tuple[str, int]]:
+    """
+    After downloading a wide range of users using download_users_start in raw_collect/twitter.py,
+    this function will read the user files and rank the users by popularity.
+
+    The return format will consist of a list of users' screen names and popularity.
+
+    :param user_dir: Download directory of users data, should be the same as the downloads dir in
+     download_user_start. (Default: "./data/twitter/user/")
+    :return: List of users' screen names and popularity, sorted descending by popularity.
+    """
+    user_dir = normalize_directory(user_dir)
+    users = []
+
+    # Loop through all the files
+    for filename in os.listdir(user_dir + ''):
+        # Only check json files and ignore macos dot files
+        if filename.endswith('.json') and not filename.startswith('.'):
+            # Read
+            with open(filename, 'r', encoding='utf-8') as f:
+                user = json.load(f)
+                users.append((user['screen_name'], user['followers_count']))
+
+    # Sort by followers count, descending
+    users.sort(key=lambda x: x[1])
+
+    # Return
+    return users