You can find out if you are in the Cook County Board Of Review 1st District by looking for your address in the Cook County Clerk's Directory of Elected Officials:
https://www.cookcountyclerk.com
Commission Patlak's 1st District of the Cook County Board of Review is red in this PDF:
Cook County Board of Review District #1 Municipalities
Municipalities fully or almost exclusively in the district
- Alsip
- Arlington Heights
- Bedford Park
- Berkeley
- Brookfield
- Chicago Heights
- Chicago Ridge
- Countryside
- Crestwood
- Des Plaines
- Elk Grove Village
- Elmwood Park
- Evergreen Park
- Franklin Park
- Glencoe
- Glenview
- Golf
- Hickory Hills
- Hillside
- Hodgkins
- Hoffman Estates
- Hometown
- Indian Head Park
- Inverness
- Kenilworth
- La Grange
- La Grange Park
- Lagrange Highlands
- Lansing
- Lyons
- McCook
- Merrionett Park
- Midlothian
- Mount Prospect
- North Riverside
- Northbrook
- Northfield
- Northlake
- Oak Forest
- Oak Lawn
- Orland Hills
- Orland Park
- Palatine
- Palos Heights
- Palos Hills
- Palos Park
- Park Ridge
- Prospect Heights
- River Forest
- River Grove
- Riverside
- Rolling Meadows
- Rosemont
- Schaumburg
- Schiller Park
- South Barrington
- South Chicago Heights
- Streamwood
- Westchester
- Western Springs
- Wheeling
- Willow Springs
- Winnetka
- Worth
Municipalities spanning two counties (i.e. partially in Will or DuPage), but the entire Cook County portion is in the district
- Barrington
- Bartlett
- Burr Ridge
- Elgin
- Hanover Park
- Hinsdale
- Lemont
- Roselle
- Steger
- Tinley Park
Municipalities partially in the district
- Berwyn
- Blue Island
- Bridgeview
- Broadview
- Buffalo Grove
- Burbank
- Parts of Chicago Wards 19, 41 and 45
- Cicero
- Flossmoor
- Homewood
- Justice
- Lynwood
- Markham
- Matteson
- Melrose Park
- Niles
- Olympia Fields
- Park Forest
- Posen
- Richton Park
- Sauk Village
- Wilmette