Flood map coverage in Louisiana
FEMA's National Flood Hazard Layer holds 2,193 FIRM panels for Louisiana from 52 digital flood map databases, reaching 52 of its 64 counties. Computed September 29, 2026.
2,193FIRM panels
67%took effect before September 29, 2016
2025-10-16newest panel (22003C0325E)
45LOMRs in effect
What to expect from lookups here
- 12 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 De Soto Parish (22031C), last revised 2003-12-16.
- 11 panels carry a placeholder effective date in FEMA's data; for points on those panels
firm_panel.effective_dateisnull.
A real lookup in Louisiana
The point is the Census internal point of Allen Parish, the county with Louisiana's most recently effective FIRM panel. FEMA's map puts it in zone AE. Recorded September 29, 2026.
curl -sG https://api.floodzoneapi.com/api/v1/flood/zone \
-H "Authorization: Bearer $FZA_KEY" \
-d lat=30.65274 -d lon=-92.8196{
"query": {
"lat": 30.65274,
"lon": -92.8196
},
"location": {
"lat": 30.65274,
"lon": -92.8196,
"geocoder": null,
"precision": "input_coordinates",
"matched_address": null,
"candidates": null,
"county": null,
"county_fips": null,
"state": null
},
"flood_zone": {
"mapped": true,
"zone": "AE",
"subtype": null,
"description": "1% annual chance flood hazard. Base flood elevations determined.",
"sfha": true,
"static_bfe": null,
"depth": null,
"dfirm_id": "22003C",
"polygon_id": "22003C_185",
"at_zone_boundary": false,
"other_zones": []
},
"firm_panel": {
"panel": "22003C0250D",
"effective_date": "2011-03-17",
"panel_type": "Countywide, Panel Printed",
"dfirm_id": "22003C",
"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": 30.65274,
"lon": -92.8196
},
"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 Louisiana
| Map | DFIRM ID | ID type | Panels | Newest panel | Oldest panel | Over 10 years old | LOMRs in effect |
|---|---|---|---|---|---|---|---|
| Acadia Parish | 22001C | County | 23 | 2010-11-26 | 2010-11-26 | 23 | 3 |
| Allen Parish | 22003C | County | 32 | 2025-10-16 | 2011-03-17 | 24 | 0 |
| Ascension Parish | 22005C | County | 21 | 2007-08-16 | 2007-08-16 | 21 | 7 |
| Assumption Parish | 22007C | County | 13 | 2018-09-14 | 2018-09-14 | 0 | 0 |
| Beauregard Parish | 22011C | County | 33 | 2018-01-05 | 2010-11-26 | 21 | 0 |
| Bienville Parish | 22013C | County | 46 | 2006-07-03 | 2006-07-03 | 46 | 0 |
| Bossier Parish | 22015C | County | 86 | 2013-03-19 | 2008-09-26 | 86 | 1 |
| Caddo Parish | 22017C | County | 100 | 2014-05-19 | 2014-05-19 | 100 | 0 |
| Calcasieu Parish | 22019C | County | 135 | 2019-05-16 | 2011-02-18 | 125 | 1 |
| Caldwell Parish | 22021C | County | 24 | 2012-09-05 | 2012-09-05 | 24 | 0 |
| Cameron Parish | 22023C | County | 51 | 2012-11-16 | 2012-11-16 | 51 | 0 |
| City of Mandeville | 220202 | Community-numbered | 7 | 2012-05-16 | 2012-05-16 | 7 | 2 |
| De Soto Parish | 22031C | County | 43 | 2003-12-16 | 2003-12-16 | 43 | 0 |
| East Baton Rouge Parish | 22033C | County | 46 | 2012-06-19 | 2008-05-02 | 46 | 5 |
| East Feliciana Parish | 22037C | County | 29 | 2024-07-31 | 2012-04-03 | 10 | 1 |
| Evangeline Parish | 22039C | County | 24 | 2010-09-03 | 2010-09-03 | 24 | 0 |
| Franklin Parish | 22041C | County | 58 | 2018-10-05 | 2011-09-02 | 15 | 0 |
| Grant Parish | 22043C | County | 42 | 2016-06-16 | 2016-06-16 | 42 | 0 |
| Iberia Parish | 22045C | County | 47 | 2011-12-02 | 2011-12-02 | 47 | 2 |
| Iberville Parish | 22047C | County | 47 | 2013-11-06 | 2013-11-06 | 47 | 0 |
| Jackson Parish | 22049C | County | 28 | 2020-08-19 | 2020-08-19 | 0 | 0 |
| Jefferson Davis Parish | 22053C | County | 20 | 2010-07-22 | 2010-07-22 | 20 | 0 |
| Jefferson Parish | 22051C | County | 38 | 2018-02-02 | 2018-02-02 | 0 | 1 |
| Lafayette Parish | 22055C | County | 23 | 2018-12-21 | 2018-12-21 | 0 | 8 |
| LaSalle Parish | 22059C | County | 30 | 2023-02-23 | 2023-02-23 | 0 | 0 |
| Lincoln Parish | 22061C | County | 22 | 2009-04-02 | 2009-04-02 | 22 | 1 |
| Livingston Parish | 22063C | County | 31 | 2012-04-03 | 2012-04-03 | 31 | 2 |
| Madison Parish | 22065C | County | 59 | 2012-06-19 | 2012-06-19 | 48 | 1 |
| Morehouse Parish | 22067C | County | 27 | 2016-07-06 | 2016-07-06 | 27 | 1 |
| Natchitoches Parish | 22069C | County | 65 | 2015-07-06 | 2015-07-06 | 65 | 0 |
| Orleans Parish | 22071C | County | 56 | 2016-09-30 | 2016-09-30 | 0 | 0 |
| Ouachita Parish | 22073C | County | 64 | 2016-01-20 | 2016-01-20 | 64 | 3 |
| Plaquemines Parish | 22075C | County | 70 | 2021-01-15 | 2021-01-15 | 0 | 0 |
| Richland Parish | 22083C | County | 66 | 2013-09-18 | 2013-09-18 | 66 | 0 |
| St. Bernard Parish | 22087C | County | 82 | 2017-12-21 | 2017-12-21 | 0 | 0 |
| St. Helena Parish | 22091C | County | 27 | 2013-04-02 | 2013-04-02 | 27 | 0 |
| St. James Parish | 22093C | County | 11 | 2011-07-04 | 2011-07-04 | 11 | 0 |
| St. John the Baptist Parish | 22095C | County | 18 | 2010-11-04 | 2010-11-04 | 18 | 0 |
| St. Landry Parish | 22097C | County | 34 | 2010-08-05 | 2010-08-05 | 34 | 0 |
| St. Martin Parish | 22099C | County | 31 | 2010-11-04 | 2010-11-04 | 31 | 1 |
| St. Mary Parish | 22101C | County | 45 | 2017-04-19 | 2017-04-19 | 0 | 0 |
| Tangipahoa Parish | 22105C | County | 38 | 2010-07-22 | 2010-07-22 | 38 | 4 |
| Terrebonne Parish | 22109C | County | 56 | 2023-09-07 | 2023-09-07 | 0 | 0 |
| Union Parish | 22111C | County | 26 | 2011-07-04 | 2011-07-04 | 26 | 0 |
| Vermilion Parish | 22113C | County | 44 | 2011-01-19 | 2011-01-19 | 44 | 0 |
| Vernon Parish | 22115C | County | 33 | 2018-03-20 | 2011-03-03 | 14 | 0 |
| Washington Parish | 22117C | County | 25 | 2009-12-03 | 2009-12-03 | 25 | 0 |
| Webster Parish | 22119C | County | 33 | 2010-03-02 | 2010-03-02 | 33 | 0 |
| West Baton Rouge Parish | 22121C | County | 15 | 2014-07-16 | 2014-07-16 | 15 | 0 |
| West Carroll Parish | 22123C | County | 43 | 2018-10-05 | 2018-10-05 | 0 | 0 |
| West Feliciana Parish | 22125C | County | 80 | 2024-07-31 | 2024-07-31 | 0 | 1 |
| Winn Parish | 22127C | County | 46 | 2020-08-19 | 2020-08-19 | 0 | 0 |
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.
- Avoyelles Parish (22009)
- Catahoula Parish (22025)
- Claiborne Parish (22027)
- Concordia Parish (22029)
- East Carroll Parish (22035)
- Lafourche Parish (22057)
- Pointe Coupee Parish (22077)
- Rapides Parish (22079)
- Red River Parish (22081)
- Sabine Parish (22085)
- St. Charles Parish (22089)
- Tensas Parish (22107)
Source: FEMA NFHL layers 1, 3 and 22 and the Census Bureau county gazetteer, computed September 29, 2026. All states ยท API reference