Shape × state421 reports
Circle UFO Sightings in Illinois
421 circle-shaped UFO sightings reported in Illinois since 1952, peaking in 2012 (33 reports).
- Total sightings
- 421
- Span
- 1952–2022
- Peak year
- 2012 (33 reports)
- Dominant shape
- Circle
1952–2022 · peak 2012 (33 reports)
Empty set