Flood Zone API Get a free key

Flood map coverage in Michigan

FEMA's National Flood Hazard Layer holds 5,227 FIRM panels for Michigan from 63 digital flood map databases, reaching 63 of its 83 counties. Computed September 29, 2026.

5,227FIRM panels
59%took effect before September 29, 2016
2026-06-23newest panel (26033C1125E)
141LOMRs in effect

What to expect from lookups here

A real lookup in Michigan

The point is the Census internal point of Chippewa County, the county with Michigan'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=46.32182 -d lon=-84.52063
Response 200
{
  "query": {
    "lat": 46.32182,
    "lon": -84.52063
  },
  "location": {
    "lat": 46.32182,
    "lon": -84.52063,
    "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": "26033C",
    "polygon_id": "26033C_948",
    "at_zone_boundary": false,
    "other_zones": []
  },
  "firm_panel": {
    "panel": "26033C0725D",
    "effective_date": "2014-10-16",
    "panel_type": "Countywide, Panel Printed",
    "dfirm_id": "26033C",
    "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": 46.32182,
      "lon": -84.52063
    },
    "queried_at": "2026-09-29T08:37:45Z",
    "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 Michigan

MapDFIRM IDID typePanelsNewest panelOldest panelOver 10 years oldLOMRs in effect
Alcona County26001CCounty452022-06-012012-09-28300
Allegan County26005CCounty922023-06-212023-06-2100
Alpena County26007CCounty522022-06-012011-11-16250
Arenac County26011CCounty582022-06-152015-03-16350
Baraga County26013CCounty662024-09-262024-09-2600
Barry County26015CCounty512009-05-042009-05-04511
Bay County26017CCounty642024-07-312010-09-17263
Benzie County26019CCounty412021-03-232021-03-2300
Berrien County26021CCounty1142024-04-252006-04-17802
Branch County26023CCounty382010-04-192010-04-19380
Calhoun County26025CCounty1022011-04-042011-04-041020
Cass County26027CCounty312007-09-052007-09-05310
Charlevoix County26029CCounty972022-09-152019-05-1600
Cheboygan County26031CCounty662022-07-192012-08-16480
Chippewa County26033CCounty912026-06-232014-10-16260
Clare County26035CCounty232010-12-032010-12-03231
Clinton County26037CCounty932011-05-032011-05-03930
Crawford County26039CCounty232012-04-172012-04-17190
Delta County26041CCounty1272023-03-072023-03-0700
Dickinson County26043CCounty492012-12-042012-12-04490
Eaton County26045CCounty702010-11-262010-11-26700
Emmet County26047CCounty1012022-06-012022-06-0100
Genesee County26049CCounty1532009-09-252009-09-251535
Gladwin County26051CCounty182018-08-022018-08-0200
Grand Traverse County26055CCounty642023-04-192018-08-2802
Gratiot County26057CCounty292011-10-182011-10-18290
Hillsdale County26059CCounty652014-02-192014-02-19290
Huron County26063CCounty682008-12-022008-12-02680
Ingham County26065CCounty912011-08-162011-08-16914
Ionia County26067CCounty992015-01-162015-01-16990
Iosco County26069CCounty522022-06-152012-01-06310
Isabella County26073CCounty432014-02-052014-02-05431
Jackson County26075CCounty542010-05-032010-05-03540
Kalamazoo County26077CCounty602024-07-312010-02-17111
Kent County26081CCounty1482023-02-232023-02-23020
Lapeer County26087CCounty432007-09-192007-09-19431
Leelanau County26089CCounty1592023-06-072018-08-2800
Lenawee County26091CCounty542019-08-152019-08-1500
Livingston County26093CCounty1192008-09-172008-09-171190
Mackinac County26097CCounty2362022-12-152022-12-1500
Macomb County26099CCounty1312020-12-302006-09-2910336
Manistee County26101CCounty402021-06-022021-06-0200
Marquette County26103CCounty992024-06-062016-04-19410
Mason County26105CCounty472021-08-242014-07-16140
Mecosta County26107CCounty1022015-02-042015-02-041020
Menominee County26109CCounty882024-07-312012-10-16420
Midland County26111CCounty522013-01-162009-05-04321
Monroe County26115CCounty1322020-06-192014-10-02941
Muskegon County26121CCounty912021-10-072015-07-06430
Newaygo County26123CCounty1082015-02-182015-02-181080
Oakland County26125CCounty2232009-01-162006-09-2922326
Oceana County26127CCounty412021-08-242014-08-04120
Ottawa County26139CCounty1032021-10-212011-12-16821
Roscommon County26143CCounty352012-01-182012-01-18350
Saginaw County26145CCounty1032023-08-152023-08-1501
Sanilac County26151CCounty912021-08-102012-01-06620
Shiawassee County26155CCounty422011-09-292011-09-29423
St. Clair County26147CCounty1352022-07-192010-05-03822
St. Joseph County26149CCounty532010-06-042010-06-04530
Tuscola County26157CCounty1292012-04-032012-04-031290
Van Buren County26159CCounty532026-06-102009-12-03291
Washtenaw County26161CCounty1092012-04-032012-04-031099
Wayne County26163CCounty1712021-10-212012-02-0212119
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