Flood zone · Arizona
Flood zone in Arizona
Flood zone (FEMA NFHL) data for ZIP codes in Arizona. Pick a ZIP below to dive into the flood zone summary.
Last verified 2026-05-13 · methodology
What lands here
Pages show the flood zone code, what it means in plain English (1% annual chance zone, 0.2% annual chance zone, or outside mapped hazard), and the base flood elevation where assigned.
Source & refresh
FEMA NFHL. Refreshed quarterly loma updates. Primary source →
Arizona top concern
Radon, wildfire-WUI, water rights
Arizona has Zone 1 radon risk across most of its area per EPA's 1993 map. FEMA NFHL coverage is dense in flood-prone Maricopa + Pima counties; wildfire risk concentrates in Yavapai + Coconino + Cochise. Water-rights and utility-source diversity (CAP allotments vs. local groundwater) varies significantly between metros.
See Arizona state page for the full state-level rollup across all 12 dimensions.
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