diff --git a/services/filter_column.py b/services/filter_column.py
new file mode 100644
index 0000000..b814503
--- /dev/null
+++ b/services/filter_column.py
@@ -0,0 +1,47 @@
+import re
+import itertools
+
+geo_admin_keywords = [
+    'lat', 'lon', 'long', 'latitude', 'longitude', 'koordinat', 'geometry', 'geometri',
+    'desa', 'kelurahan', 'kel', 'kecamatan', 'kabupaten', 'kab', 'kota', 'provinsi',
+    'lokasi', 'region', 'area', 'zone', 'boundary', 'batas'
+]
+
+def normalize_text(text):
+    text = text.lower()
+    text = re.sub(r'[^a-z0-9/ ]+', ' ', text)
+    text = re.sub(r'\s+', ' ', text).strip()
+    return text
+
+def generate_combined_patterns(keywords):
+    combos = list(itertools.combinations(keywords, 2))
+    patterns = []
+    for a, b in combos:
+        patterns.append(rf'{a}\s*/\s*{b}')
+        patterns.append(rf'{b}\s*/\s*{a}')
+    return patterns
+
+combined_patterns = generate_combined_patterns(geo_admin_keywords)
+
+def contains_geo_admin_keywords(text):
+    text_clean = normalize_text(text)
+    if len(text_clean) < 3:
+        return False 
+    
+    for pattern in combined_patterns:
+        if re.search(pattern, text_clean):
+            return True
+
+    for kw in geo_admin_keywords:
+        if re.search(rf'(^|[\s/_-]){kw}([\s/_-]|$)', text_clean):
+            return True
+    
+    return False
+
+def filter_geo_admin_column(tables):
+    filtered = []
+    for table in tables:
+        found = any(contains_geo_admin_keywords(col) for col in table['columns'])
+        if found:
+            filtered.append(table)
+    return filtered