
Thomas Viaduct, Baltimore & Ohio Railroad · National Register of Historic Places
Arbutus’s story
140 years in pictures
Thomas Viaduct, Baltimore & Ohio Railroad is a National Historic Landmark, the National Register’s top tier.
Census counts: 22,402 in 1960, 21,655 in 2020. The archive holds 4 maps from 1944 on.
2 places on the National Register of Historic Places.
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Getting set upMoving to Arbutus: who provides what
Arbutus is unincorporated, so Baltimore County and regional agencies provide most services.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Mar 11, 2026.