Flood Zone API Get a free key

Flood map coverage in Arizona

FEMA's National Flood Hazard Layer holds 3,812 FIRM panels for Arizona from 16 digital flood map databases, reaching 15 of its 15 counties. Computed September 29, 2026.

3,812FIRM panels
92%took effect before September 29, 2016
2026-01-09newest panel (04005C7500H)
660LOMRs in effect

What to expect from lookups here

A real lookup in Arizona

The point is the Census internal point of Coconino County, the county with Arizona's most recently effective FIRM panel. FEMA's map puts it in zone X (area of minimal flood hazard). Recorded September 29, 2026.

Request
curl -sG https://api.floodzoneapi.com/api/v1/flood/zone \
  -H "Authorization: Bearer $FZA_KEY" \
  -d lat=35.82969 -d lon=-111.77373
Response 200
{
  "query": {
    "lat": 35.82969,
    "lon": -111.77373
  },
  "location": {
    "lat": 35.82969,
    "lon": -111.77373,
    "geocoder": null,
    "precision": "input_coordinates",
    "matched_address": null,
    "candidates": null,
    "county": null,
    "county_fips": null,
    "state": null
  },
  "flood_zone": {
    "mapped": true,
    "zone": "X",
    "subtype": "AREA OF MINIMAL FLOOD HAZARD",
    "description": "Area of minimal flood hazard. Outside the Special Flood Hazard Area.",
    "sfha": false,
    "static_bfe": null,
    "depth": null,
    "dfirm_id": "04005C",
    "polygon_id": "04005C_1753",
    "at_zone_boundary": false,
    "other_zones": []
  },
  "firm_panel": {
    "panel": "04005C4425G",
    "effective_date": "2010-09-03",
    "panel_type": "Countywide, Panel Printed",
    "dfirm_id": "04005C",
    "other_panels": []
  },
  "source": {
    "dataset": "FEMA National Flood Hazard Layer (NFHL)",
    "service": "https://hazards.fema.gov/arcgis/rest/services/public/NFHL/MapServer",
    "layers": [
      {
        "id": 28,
        "name": "Flood Hazard Zones"
      },
      {
        "id": 3,
        "name": "FIRM Panels"
      }
    ],
    "query_point": {
      "lat": 35.82969,
      "lon": -111.77373
    },
    "queried_at": "2026-09-29T08:37:31Z",
    "cached": true,
    "cache_ttl_seconds": 86400
  },
  "notice": "Informational. This is the zone shown on FEMA's effective flood map (NFHL) at this point. It is not a Standard Flood Hazard Determination (FEMA Form 086-0-32), a prediction of flood risk, or an insurance quote, and it does not reflect a Letter of Map Amendment issued for a single structure."
}

Every digital flood map in Arizona

MapDFIRM IDID typePanelsNewest panelOldest panelOver 10 years oldLOMRs in effect
Apache County04001CCounty2382007-09-282007-09-282383
Cochise County04003CCounty2912016-10-202008-08-2828811
Coconino County04005CCounty4472026-01-092010-09-0342026
Gila County04007CCounty2522007-12-042007-12-042525
Graham County04009CCounty1322007-09-282007-09-281322
Greenlee County04011CCounty522007-09-282007-09-28524
La Paz County04012CCounty1622025-02-282008-08-281430
Maricopa County04013CCounty4942024-02-082013-10-16390292
Mohave County04015CCounty3852025-10-302009-11-1836230
Navajo County04017CCounty3002016-03-022008-09-263005
Pima County04019CCounty2992012-09-282011-06-16299112
Pinal County04021CCounty1932025-11-282007-12-0414079
Santa Cruz County04023CCounty812011-12-022011-12-028120
Union County05139CCounty412007-09-282007-09-28410
Yavapai County04025CCounty2742024-02-082010-09-0319366
Yuma County04027CCounty1712014-01-162008-08-281715
Dates are panel effective dates (YYYY-MM-DD). "Placeholder" means FEMA's record carries a non-date such as 9999-09-09. "Over 10 years old" counts panels effective before September 29, 2016. "LOMRs in effect" are Letters of Map Revision not yet folded into a new FIRM. The DFIRM ID appears in responses as flood_zone.dfirm_id and firm_panel.dfirm_id.

Source: FEMA NFHL layers 1, 3 and 22 and the Census Bureau county gazetteer, computed September 29, 2026. All states ยท API reference