
Washington's Headquarters · National Register of Historic Places
Upper Merion Township’s story
313 years in pictures
Washington's Headquarters is one of 2 National Historic Landmarks here, the National Register’s top tier.
Census counts: 5,889 in 1930, 33,613 in 2020. The archive holds 3 old photos and papers going back to 1773 and 7 maps from 1894 on.
7 places on the National Register of Historic Places.
- 1713Upper Merion Township is settled
Explore the history →
Getting set upMoving to Upper Merion Township: who provides what
Who provides power, water and the rest in Upper Merion Township, and how to reach them.
The full setup list →EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Nov 18, 2024.