Haleakala National ParkvsWashington Monument
Haleakala National Park has a higher Total Area (33,489 vs 105 acres), while Haleakala National Park has a higher Annual Visitors (2025) (853,711 vs 204,489 visitors), while Washington Monument has a higher Longitude (-77 vs -156 °).
Location & Classification
National Park
Designation
National Memorial
HI
State(s)
DC
21
Latitude
39
-156
Longitude
-77
Size & Visitation
33,489
Total Area
105
853,711
Annual Visitors (2025)
204,489
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Data sourced from NPS Boundary & Tract Data Service (US Government (public domain)), NPS Visitor Use Statistics (2025) (CC0 (public domain)), NPS Acreage Report (Q1 2026) (US Government (public domain)).