DFIRM – FEMA Flood Hazard Zone Polygons
MARIS has obtained the current FEMA DFIRM flood hazard zone polygon shapefiles for all available counties. As new counties become available, we will be adding them to this link.
Please note that this shapefile is only part of the complete DFIRM packet. For the entire packet, contact Steve Walker (See Content description).
DFIRM Effective Year - Status Map: Flood_Eff_Date.pdf
For exact status of county development: MS DEQ DFIRM Status Page
The data is in NAD1983 Mississippi State Plane Feet (East or West) projection.
The main attribute listing FEMA Flood Zone Codes is FLD_Zone
(See entire FEMA Code Description)
File Description
Files are packaged into a packet: <Countyname>_fldhaz.zip including:
<Countyname>_fldhaz.shp … ……Shapefile of polygonal areas
<Countyname>_fldhaz.met.txt ….. County metadata (Sample)
Download County zips
| County Name | County Name | County Name | County Name | County Name |
|---|---|---|---|---|
| Adams | Alcorn | Amite | Attala | Benton |
| Calhoun | Chickasaw | Choctaw | Claiborne | Clarke |
| Clay | Copiah | Covington | Desoto | Forrest |
| Franklin | George | Greene | Grenada | Hancock |
| Harrison | Hinds | Holmes | Humphreys | Issaquena |
| Jackson | Jasper | Jefferson Davis | Jefferson | Jones |
| Kemper | Lafayette | Lamar | Lauderdale | Lawrence |
| Leake | Lee | Leflore | Lincoln | Lowndes |
| Madison | Marion | Marshall | Montgomery | Neshoba |
| Newton | Noxubee | Oktibbeha | Pearl River | Perry |
| Pike | Pontotoc | Prentiss | Rankin | Scott |
| Sharkey | Simpson | Smith | Stone | Sunflower |
| Tate | Tippah | Tishomingo | Tunica | Union |
| Walthall | Warren | Washington | Wayne | Webster |
| Wilkinson | Winston | Yalobusha | Yazoo |
Mississippi DEQ - Office of Geology's MS-NFHL Web Map Viewer - click here...
