Flood Zone API Get a free key

Flood map coverage in Oregon

FEMA's National Flood Hazard Layer holds 3,295 FIRM panels for Oregon from 27 digital flood map databases, reaching 26 of its 36 counties. Computed September 29, 2026.

3,295FIRM panels
62%took effect before September 29, 2016
2025-07-22newest panel (41055C0625C)
138LOMRs in effect

What to expect from lookups here

A real lookup in Oregon

The point is the Census internal point of Sherman County, the county with Oregon'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=45.39922 -d lon=-120.67851
Response 200
{
  "query": {
    "lat": 45.39922,
    "lon": -120.67851
  },
  "location": {
    "lat": 45.39922,
    "lon": -120.67851,
    "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": "41055C",
    "polygon_id": "41055C_2606",
    "at_zone_boundary": false,
    "other_zones": []
  },
  "firm_panel": {
    "panel": "41055C0350C",
    "effective_date": "2025-07-22",
    "panel_type": "Countywide, Panel Printed",
    "dfirm_id": "41055C",
    "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": 45.39922,
      "lon": -120.67851
    },
    "queried_at": "2026-09-29T08:37:55Z",
    "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 Oregon

MapDFIRM IDID typePanelsNewest panelOldest panelOver 10 years oldLOMRs in effect
Benton County41003CCounty652016-12-082011-06-02608
City of Portland410183Community-numbered452010-11-262004-10-194511
Clackamas County41005CCounty1442019-01-182008-06-171198
Clatsop County41007CCounty1052018-06-202010-09-17774
Columbia County41009CCounty572010-11-262010-11-26572
Coos County41011CCounty1022018-12-072014-03-17110
Crook County41013CCounty852012-02-022012-02-02850
Curry County41015CCounty1092018-11-162009-09-25460
Deschutes County41017CCounty1302007-09-282007-09-281306
Douglas County41019CCounty2442021-03-232010-02-172050
Grant County41023CCounty92021-03-232021-03-2300
Harney County41025CCounty2682024-02-082022-04-2000
Jackson County41029CCounty1972018-01-192011-05-0312518
Josephine County41033CCounty1362009-12-032009-12-031363
Klamath County41035CCounty2072024-11-072024-11-0700
Lane County41039CCounty2482020-06-051999-06-0220726
Lincoln County41041CCounty1022019-10-182009-12-18180
Linn County41043CCounty1622016-12-082010-09-291563
Marion County41047CCounty1062019-10-182000-01-1910229
Morrow County41049CCounty722007-12-182007-12-18720
Multnomah County41051CCounty682019-02-012009-12-18466
Polk County41053CCounty542006-12-192006-12-19542
Sherman County41055CCounty672025-07-222025-07-2200
Tillamook County41057CCounty1062018-09-282018-09-2800
Umatilla County41059CCounty1972010-09-032010-09-031972
Washington County41067CCounty1172018-10-192016-11-0407
Yamhill County41071CCounty932010-03-022010-03-02933
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