Geographic reference
Boulder Hill CDP, Illinois
Boulder Hill CDP is a Census place in Illinois.
Reference details
- State
- Illinois (IL)
- Census GEOID
- 1707419
- Land area
- 3.771 km²
- Water area
- 0.018 km²
- Representative point
- 41.710352, -88.333783
View point on map ↗
Geographic facts: 2026 U.S. Census Gazetteer. Coordinates identify a representative point, not the full geographic boundary.