Coordenadas: 41° 51' 14" N 87° 53' 1" O
Westchester é uma aldeia localizada no estado americano de Illinois, no Condado de Cook.
Segundo o censo americano de 2000, a sua população era de 16.824 habitantes.[1] Em 2006, foi estimada uma população de 15.991,[2] um decréscimo de 833 (-5.0%).
De acordo com o United States Census Bureau tem uma área de 8,3 km², dos quais 8,3 km² cobertos por terra e 0,0 km² cobertos por água.
O diagrama seguinte representa as localidades num raio de 4 km ao redor de Westchester.
Berwyn | Blue Island | Burbank | Calumet City | Chicago Heights | Chicago‡ | Country Club Hills | Countryside | Des Plaines | Elgin‡ | Elmhurst‡ | Evanston | Harvey | Hickory Hills | Hometown | Markham | Northlake | Oak Forest | Palos Heights | Palos Hills | Park Ridge | Prospect Heights | Rolling Meadows
Cicero
Alsip | Arlington Heights‡ | Barrington Hills‡ | Barrington‡ | Bartlett‡ | Bedford Park | Bellwood | Bensenville‡ | Berkeley | Bridgeview | Broadview | Brookfield | Buffalo Grove‡ | Burnham | Burr Ridge‡ | Calumet Park | Chicago Ridge | Crestwood | Deerfield‡ | Deer Park‡ | Dixmoor | Dolton | East Hazel Crest | East Dundee‡ | Elk Grove Village‡ | Elmwood Park | Evergreen Park | Flossmoor | Ford Heights | Forest Park | Forest View | Frankfort‡ | Franklin Park | Glencoe | Glenview | Glenwood | Golf | Hanover Park‡ | Harwood Heights | Hazel Crest | Hillside | Hinsdale‡ | Hodgkins | Hoffman Estates‡ | Homewood | Indian Head Park | Inverness | Justice | Kenilworth | La Grange Park | La Grange | Lansing | Lemont‡ | Lincolnwood | Lynwood | Lyons | Matteson‡ | Maywood | McCook | Melrose Park | Merrionette Park | Midlothian | Morton Grove | Mount Prospect | Niles | Norridge | North Riverside | Northbrook | Northfield | Oak Brook‡ | Oak Lawn | Oak Park | Olympia Fields | Orland Hills | Orland Park‡ | Palatine | Palos Park | Park Forest‡ | Phoenix | Posen | Richton Park | River Forest | River Grove | Riverdale | Riverside | Robbins | Roselle‡ | Rosemont | Sauk Village‡ | Schaumburg‡ | Schiller Park | Skokie | South Barrington | South Chicago Heights | South Holland | Steger‡ | Stickney | Stone Park | Streamwood | Summit | Thornton | Tinley Park‡ | University Park‡ | Westchester | Western Springs | Wheeling‡ | Willow Springs‡ | Wilmette | Winnetka | Woodridge‡ | Worth
Barrington | Berwyn | Bloom | Bremen | Calumet | Cicero | Elk Grove | Evanston | Hanover | Lemont | Leyden | Lyons | Maine | New Trier | Niles | Northfield | Norwood Park | Oak Park | Orland | Palatine | Palos | Proviso | Rich | River Forest | Riverside | Schaumburg | Stickney | Thornton | Wheeling | Worth
Hines | La Grange Highlands | Sutton
‡ Parte de seu território fica em condados adjacentes