Whitlock Park In Downers Grove Whitlock Park In Downers Grove loading map - please wait...Map could not be loaded - please enable Javascript!→ more information Whitlock Park, 40th Street, Downers Grove, IL, United States (Directions) Whitlock Park In Downers Grove 41.814125, -87.994290 Whitlock Park, 40th Street, Downers Grove, IL, United States (Directions) Parking info: n/a Bathrooms: n/a Concessions: n/a Dogs: n/a