Flood Zone API Get a free key

Flood map coverage in Nebraska

FEMA's National Flood Hazard Layer holds 2,221 FIRM panels for Nebraska from 70 digital flood map databases, reaching 69 of its 93 counties. Computed September 29, 2026.

2,221FIRM panels
80%took effect before September 29, 2016
2026-06-10newest panel (31011C0025D)
71LOMRs in effect

What to expect from lookups here

A real lookup in Nebraska

The point is the Census internal point of Boone County, the county with Nebraska'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=41.70393 -d lon=-98.07048
Response 200
{
  "query": {
    "lat": 41.70393,
    "lon": -98.07048
  },
  "location": {
    "lat": 41.70393,
    "lon": -98.07048,
    "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": "31011C",
    "polygon_id": "31011C_811",
    "at_zone_boundary": false,
    "other_zones": []
  },
  "firm_panel": {
    "panel": "31011C0325D",
    "effective_date": "2026-06-10",
    "panel_type": "Countywide, Panel Printed",
    "dfirm_id": "31011C",
    "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": 41.70393,
      "lon": -98.07048
    },
    "queried_at": "2026-09-29T08:37:48Z",
    "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 Nebraska

MapDFIRM IDID typePanelsNewest panelOldest panelOver 10 years oldLOMRs in effect
Adams County31001CCounty292018-07-052018-07-0500
Boone County31011CCounty382026-06-102026-06-1000
Boyd County31015CCounty182005-08-182005-08-18180
Buffalo County31019CCounty432010-11-262010-11-26433
Burt County31021CCounty242020-06-052020-06-0500
Butler County31023CCounty442011-08-162011-08-16440
Cass County31025CCounty392024-08-142010-11-26362
Chase County31029CCounty282008-02-202008-02-20280
City of Bayard310347Community-numbered22026-01-232026-01-2300
City of Bridgeport310151Community-numbered42026-03-172026-03-1700
Clay County31035CCounty202018-07-052018-07-0500
Colfax County31037CCounty192019-03-212016-04-05172
Dakota County31043CCounty302012-01-062012-01-06304
Dawes County31045CCounty452011-06-162011-06-16450
Dawson County31047CCounty482011-05-032011-05-03481
Deuel County31049CCounty132025-09-052025-09-0500
Dixon County31051CCounty282026-05-262026-05-2600
Dodge County31053CCounty322020-04-172008-01-02312
Douglas County31055CCounty992025-03-252005-12-02271
Dundy County31057CCounty252002-10-042002-10-04251
Fillmore County31059CCounty252004-09-162004-09-16250
Franklin County31061CCounty152005-09-302005-09-30150
Frontier County31063CCounty312008-04-022008-04-02310
Furnas County31065CCounty232009-03-022009-03-02230
Gage County31067CCounty512016-05-022010-06-18510
Garden County31069CCounty492005-08-042005-08-04490
Garfield County31071CCounty162008-04-162008-04-16160
Gosper County31073CCounty142005-08-042005-08-04140
Greeley County31077CCounty202008-05-162008-05-16200
Hall County31079CCounty562008-09-262008-09-26564
Hamilton County31081CCounty272019-08-012019-08-0100
Harlan County31083CCounty212009-02-182009-02-18210
Hayes County31085CCounty222008-02-062008-02-06220
Hitchcock County31087CCounty192008-03-182008-03-18190
Howard County31093CCounty292014-07-072004-10-19293
Jefferson County31095CCounty252015-08-172015-08-17250
Johnson County31097CCounty262006-04-172006-04-17260
Kearney County31099CCounty272026-01-232004-01-16120
Keith County31101CCounty282005-09-302005-09-30280
Knox County31107CCounty342015-10-022005-08-18346
Lancaster County31109CCounty1382013-04-162011-02-1813813
Lincoln County31111CCounty832009-01-022009-01-02835
Loup County31115CCounty202008-05-162008-05-16200
Madison County31119CCounty352005-02-042005-02-04354
Merrick County31121CCounty332010-01-062010-01-06331
Nance County31125CCounty262005-08-042005-08-04262
Nemaha County31127CCounty142021-10-072021-10-0700
Nuckolls County31129CCounty212026-01-092004-12-1640
Otoe County31131CCounty552011-02-182004-08-04550
Pawnee County31133CCounty122005-07-052005-07-05120
Perkins County31135CCounty322005-09-022005-09-02320
Phelps County31137CCounty282008-01-162008-01-16280
Platte County31141CCounty312010-04-192010-04-19313
Polk County31143CCounty192008-08-192008-08-19190
Red Willow County31145CCounty242011-11-162009-02-04240
Richardson County31147CCounty232021-10-072021-10-0700
Saline County31151CCounty402010-11-042010-11-04403
Sarpy County31153CCounty432010-05-032005-12-02435
Saunders County31155CCounty352016-08-032010-04-05351
Seward County31159CCounty232020-05-012020-05-0100
Sherman County31163CCounty262008-05-162008-05-16260
Stanton County31167CCounty282004-09-302004-09-30280
Thayer County31169CCounty322025-11-142025-11-1400
Thurston County31173CCounty222010-01-062010-01-06220
Valley County31175CCounty192008-08-192008-08-19190
Washington County31177CCounty842012-01-062012-01-06844
Wayne County31179CCounty252025-09-052025-09-0500
Webster County31181CCounty182008-05-162008-05-16180
Wheeler County31183CCounty202008-01-022008-01-02200
York County31185CCounty262019-08-012019-08-0101
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