Flood Zone API Get a free key

Flood map coverage in Idaho

FEMA's National Flood Hazard Layer holds 1,126 FIRM panels for Idaho from 14 digital flood map databases, reaching 14 of its 44 counties. Computed September 29, 2026.

1,126FIRM panels
74%took effect before September 29, 2016
2026-06-10newest panel (16081C0190D)
104LOMRs in effect

What to expect from lookups here

A real lookup in Idaho

The point is the Census internal point of Teton County, the county with Idaho'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=43.76099 -d lon=-111.21176
Response 200
{
  "query": {
    "lat": 43.76099,
    "lon": -111.21176
  },
  "location": {
    "lat": 43.76099,
    "lon": -111.21176,
    "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": "16081C",
    "polygon_id": "16081C_7810",
    "at_zone_boundary": false,
    "other_zones": []
  },
  "firm_panel": {
    "panel": "16081C0165D",
    "effective_date": "2026-06-10",
    "panel_type": "Countywide, Panel Printed",
    "dfirm_id": "16081C",
    "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": 43.76099,
      "lon": -111.21176
    },
    "queried_at": "2026-09-29T08:37:37Z",
    "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 Idaho

MapDFIRM IDID typePanelsNewest panelOldest panelOver 10 years oldLOMRs in effect
Ada County16001CCounty922020-06-192003-02-195756
Bannock County16005CCounty892020-07-222009-07-07836
Benewah County16009CCounty412009-09-252009-09-25411
Blaine County16013CCounty1782010-11-262010-11-2617818
Bonner County16017CCounty1152014-07-072009-11-181151
Canyon County16027CCounty792019-06-072011-05-244214
Gem County16045CCounty542021-08-242021-08-2400
Jefferson County16051CCounty242008-09-262008-09-26240
Kootenai County16055CCounty792010-05-032010-05-03796
Shoshone County16079CCounty1212008-09-262008-09-261212
Teton County16081CCounty412026-06-102026-06-1000
Twin Falls County16083CCounty292008-09-262008-09-26290
Valley County16085CCounty1192019-02-012019-02-0100
Washington County16087CCounty652009-06-162009-06-16650
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.

Counties with no digital FIRM in the NFHL

No digital flood map in the NFHL links to these counties (Census county FIPS in brackets). Addresses here return "mapped": false; FEMA may still have paper maps for them.

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