Flood zone · Pennsylvania
Flood zone in Pennsylvania
Flood zone (FEMA NFHL) data for ZIP codes in Pennsylvania. 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 →
Pennsylvania top concern
Radon, lead pipes (older cities)
Pennsylvania has Zone 1 radon across most of the state. LCRR lead-service-line obligations in Philadelphia, Pittsburgh, Reading, Allentown, Erie. EPA SDWIS small-system compliance varies.
See Pennsylvania state page for the full state-level rollup across all 12 dimensions.
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10 Pennsylvania ZIPs
ZIP 19103
Philadelphia, PA
Flood zone →
ZIP 15222
Pittsburgh, PA
Flood zone →
ZIP 17101
Harrisburg, PA
Flood zone →
ZIP 16801
State College, PA
Flood zone →
ZIP 15217
Pittsburgh (Squirrel Hill), PA
Flood zone →
ZIP 17013
Carlisle, PA
Flood zone →
ZIP 19610
Wyomissing, PA
Flood zone →
ZIP 15601
Greensburg (PA), PA
Flood zone →
ZIP 17110
Harrisburg (PA), PA
Flood zone →
ZIP 18103
Allentown (PA), PA
Flood zone →