Shape × state427 reports

Unknown UFO Sightings in Illinois

427 unknown-shaped UFO sightings reported in Illinois since 1959, peaking in 2019 (30 reports).

Total sightings: 427
Span: 1959–2022
Peak year: 2019 (30 reports)
Dominant shape: Unknown

1959–2022 · peak 2019 (30 reports)

Unknown1959-05-15

Evanston · IL, USA

In 1959, a group of witnesses in Evanston, Illinois, reported a distant object appearing in the same part of the sky on three consecutive nights, each for about 20 minutes.

Unknown01:40

East Peoria · IL, USA

Fast streaking object in the sky with high-pitched whistling sound and NO contrails