Add How to Calculate a Field in ArcGIS Pro Using Python.

region_identifier.py

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+def get_region_by_county(county_name):
+    # Define the dictionary of regions and their associated counties/boroughs
+    regions = {
+        "Western New York": ["Niagara", "Erie", "Chautauqua", "Cattaraugus"],
+        "Finger Lakes": ["Orleans", "Genesee", "Wyoming", "Monroe", "Livingston", "Wayne", "Ontario", "Yates", "Seneca"],
+        "Southern Tier": ["Steuben", "Schuyler", "Chemung", "Tompkins", "Tioga", "Chenango", "Broome", "Delaware"],
+        "Central New York": ["Cortland", "Cayuga", "Onondaga", "Oswego", "Madison"],
+        "North Country": ["Saint Lawrence", "St Lawrence", "St. Lawrence", "Lewis", "Jefferson", "Hamilton", "Essex", "Clinton", "Franklin"],
+        "Mohawk Valley": ["Oneida", "Herkimer", "Fulton", "Montgomery", "Otsego", "Schoharie"],
+        "Capital District": ["Albany", "Columbia", "Greene", "Warren", "Washington", "Saratoga", "Schenectady", "Rensselaer"],
+        "Hudson Valley": ["Sullivan", "Ulster", "Dutchess", "Orange", "Putnam", "Rockland", "Westchester"],
+        "New York City": ["New York", "Manhattan", "Bronx", "Queens", "Kings", "Brooklyn", "Richmond", "Staten Island"],
+        "Long Island": ["Nassau", "Suffolk"]
+    }
+
+    # Trim any leading/trailing whitespace and convert to lowercase
+    county_name = county_name.strip().lower()
+
+    # Loop through the regions and check if the county is in any region's list
+    for region, counties in regions.items():
+        # Compare the county_name in lowercase with each county (also in lowercase)
+        if county_name in [county.lower() for county in counties]:
+            return region
+    
+    # Return a message if the county is not found
+    return "Error"