UFO Sightings in Northbrook, Illinois

38 documented UFO sightings in Northbrook, Illinois since 1999, peaking in 2020 (16 reports); most often described as unknown.

Total sightings

38

Span

1999–2022

Peak year

2020 (16 reports)

Dominant shape

Unknown

1999–2022 · peak 2020 (16 reports)