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Flood zone · Massachusetts

Flood zone in Massachusetts

Flood zone (FEMA NFHL) data for ZIP codes in Massachusetts. Pick a ZIP below to dive into the flood zone summary.

Last verified 2026-09-24 · methodology

What lands here

Not on zipradar yet. The plan is the FEMA flood zone code, what it means in plain English, and the base flood elevation where assigned. Until then, look the address up on FEMA's Flood Map Service Center.

Source & refresh

FEMA NFHL. Refreshed quarterly loma updates. Primary source →

Massachusetts top concern

Lead pipes, coastal flood, older housing

Massachusetts has dense lead-service-line obligations under LCRR in Boston, Lowell, Worcester, Springfield. Coastal AE/VE zones along the South Shore + Cape. Older housing stock means lead-paint risk overlaps with LSL risk.

See Massachusetts state page for the full state-level rollup across all 12 dimensions.

Read more on flood zone

Editorial deep-dives explaining the source data, its limits, and how to read it.

8 Massachusetts ZIPs