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
- 10 counties have no digital FIRM in the NFHL (listed below). Points there come back
"mapped": false. - 1 of the maps are community-numbered, so parts of the counties they sit in may have no digital map.
- The map that has gone longest without a new panel is Polk County (41053C), last revised 2006-12-19.
- 18 panels carry a placeholder effective date in FEMA's data; for points on those panels
firm_panel.effective_dateisnull.
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.
curl -sG https://api.floodzoneapi.com/api/v1/flood/zone \
-H "Authorization: Bearer $FZA_KEY" \
-d lat=45.39922 -d lon=-120.67851{
"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
| Map | DFIRM ID | ID type | Panels | Newest panel | Oldest panel | Over 10 years old | LOMRs in effect |
|---|---|---|---|---|---|---|---|
| Benton County | 41003C | County | 65 | 2016-12-08 | 2011-06-02 | 60 | 8 |
| City of Portland | 410183 | Community-numbered | 45 | 2010-11-26 | 2004-10-19 | 45 | 11 |
| Clackamas County | 41005C | County | 144 | 2019-01-18 | 2008-06-17 | 119 | 8 |
| Clatsop County | 41007C | County | 105 | 2018-06-20 | 2010-09-17 | 77 | 4 |
| Columbia County | 41009C | County | 57 | 2010-11-26 | 2010-11-26 | 57 | 2 |
| Coos County | 41011C | County | 102 | 2018-12-07 | 2014-03-17 | 11 | 0 |
| Crook County | 41013C | County | 85 | 2012-02-02 | 2012-02-02 | 85 | 0 |
| Curry County | 41015C | County | 109 | 2018-11-16 | 2009-09-25 | 46 | 0 |
| Deschutes County | 41017C | County | 130 | 2007-09-28 | 2007-09-28 | 130 | 6 |
| Douglas County | 41019C | County | 244 | 2021-03-23 | 2010-02-17 | 205 | 0 |
| Grant County | 41023C | County | 9 | 2021-03-23 | 2021-03-23 | 0 | 0 |
| Harney County | 41025C | County | 268 | 2024-02-08 | 2022-04-20 | 0 | 0 |
| Jackson County | 41029C | County | 197 | 2018-01-19 | 2011-05-03 | 125 | 18 |
| Josephine County | 41033C | County | 136 | 2009-12-03 | 2009-12-03 | 136 | 3 |
| Klamath County | 41035C | County | 207 | 2024-11-07 | 2024-11-07 | 0 | 0 |
| Lane County | 41039C | County | 248 | 2020-06-05 | 1999-06-02 | 207 | 26 |
| Lincoln County | 41041C | County | 102 | 2019-10-18 | 2009-12-18 | 18 | 0 |
| Linn County | 41043C | County | 162 | 2016-12-08 | 2010-09-29 | 156 | 3 |
| Marion County | 41047C | County | 106 | 2019-10-18 | 2000-01-19 | 102 | 29 |
| Morrow County | 41049C | County | 72 | 2007-12-18 | 2007-12-18 | 72 | 0 |
| Multnomah County | 41051C | County | 68 | 2019-02-01 | 2009-12-18 | 46 | 6 |
| Polk County | 41053C | County | 54 | 2006-12-19 | 2006-12-19 | 54 | 2 |
| Sherman County | 41055C | County | 67 | 2025-07-22 | 2025-07-22 | 0 | 0 |
| Tillamook County | 41057C | County | 106 | 2018-09-28 | 2018-09-28 | 0 | 0 |
| Umatilla County | 41059C | County | 197 | 2010-09-03 | 2010-09-03 | 197 | 2 |
| Washington County | 41067C | County | 117 | 2018-10-19 | 2016-11-04 | 0 | 7 |
| Yamhill County | 41071C | County | 93 | 2010-03-02 | 2010-03-02 | 93 | 3 |
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.
- Baker County (41001)
- Gilliam County (41021)
- Hood River County (41027)
- Jefferson County (41031)
- Lake County (41037)
- Malheur County (41045)
- Union County (41061)
- Wallowa County (41063)
- Wasco County (41065)
- Wheeler County (41069)
Source: FEMA NFHL layers 1, 3 and 22 and the Census Bureau county gazetteer, computed September 29, 2026. All states ยท API reference