Flood map coverage in Maine
FEMA's National Flood Hazard Layer holds 3,283 FIRM panels for Maine from 17 digital flood map databases, reaching 13 of its 16 counties. Computed September 29, 2026.
3,283FIRM panels
59%took effect before September 29, 2016
2024-07-17newest panel (23031C0569G)
57LOMRs in effect
What to expect from lookups here
- 3 counties have no digital FIRM in the NFHL (listed below). Points there come back
"mapped": false. - 5 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 Town of Allagash (230440), last revised 2003-04-02.
A real lookup in Maine
The point is the Census internal point of York County, the county with Maine'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=43.42602 -d lon=-70.66842{
"query": {
"lat": 43.42602,
"lon": -70.66842
},
"location": {
"lat": 43.42602,
"lon": -70.66842,
"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": "23031C",
"polygon_id": "23031C_3855",
"at_zone_boundary": false,
"other_zones": []
},
"firm_panel": {
"panel": "23031C0416G",
"effective_date": "2024-07-17",
"panel_type": "Countywide, Panel Printed",
"dfirm_id": "23031C",
"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": 43.42602,
"lon": -70.66842
},
"queried_at": "2026-09-29T08:37:42Z",
"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 Maine
| Map | DFIRM ID | ID type | Panels | Newest panel | Oldest panel | Over 10 years old | LOMRs in effect |
|---|---|---|---|---|---|---|---|
| Androscoggin County | 23001C | County | 167 | 2013-07-08 | 2013-07-08 | 167 | 2 |
| Cumberland County | 23005C | County | 357 | 2024-06-20 | 2024-06-20 | 0 | 8 |
| Hancock County | 23009C | County | 460 | 2016-07-20 | 2016-07-20 | 460 | 13 |
| Kennebec County | 23011C | County | 201 | 2011-06-16 | 2011-06-16 | 201 | 1 |
| Knox County | 23013C | County | 217 | 2016-07-06 | 2016-07-06 | 217 | 5 |
| Lincoln County | 23015C | County | 184 | 2015-07-16 | 2015-07-16 | 184 | 4 |
| Oxford County | 23017C | County | 391 | 2009-07-07 | 2009-07-07 | 391 | 4 |
| Penobscot County | 23019C | County | 211 | 2023-07-19 | 2023-07-19 | 0 | 1 |
| Sagadahoc County | 23023C | County | 112 | 2015-07-16 | 2015-07-16 | 112 | 0 |
| Town of Allagash | 230440 | Community-numbered | 23 | 2003-04-02 | 2003-04-02 | 23 | 0 |
| Town of Eagle Lake | 230016 | Community-numbered | 7 | 2006-08-02 | 2006-08-02 | 7 | 0 |
| Town of Fort Kent | 230019 | Community-numbered | 29 | 2016-07-06 | 2016-07-06 | 29 | 1 |
| Town of Mapleton | 230025 | Community-numbered | 12 | 2007-12-18 | 2007-12-18 | 12 | 0 |
| Town of Van Buren | 230036 | Community-numbered | 9 | 2008-01-16 | 2008-01-16 | 9 | 0 |
| Waldo County | 23027C | County | 136 | 2015-07-06 | 2015-07-06 | 136 | 0 |
| Washington County | 23029C | County | 461 | 2017-07-18 | 2017-07-18 | 0 | 14 |
| York County | 23031C | County | 306 | 2024-07-17 | 2024-07-17 | 0 | 4 |
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.
- Franklin County (23007)
- Piscataquis County (23021)
- Somerset County (23025)
Source: FEMA NFHL layers 1, 3 and 22 and the Census Bureau county gazetteer, computed September 29, 2026. All states ยท API reference