Flood Insurance Rate Maps (FIRMS) are the basis for determining compliancy for building in floodplains. These maps are designed to assist in determining if a particular piece of property is located in a 100-year floodplain as designated by the Federal Emergency Management Agency (FEMA). The NFIP (National Flood Insurance Program) manages the flood insurance in the United States and guarantees the availability of flood insurance to all citizens in a community which properly regulates its floodplains. Pinal County uses the FIRMs to determine whether or not the location of a home or structure is in a special flood hazard area (100 year flood zone) and to require the owner to elevate to meet the minimum elevation requirement in the Regulatory Floodplain. Flood zones on the FIRM are designated with a letter “A” or AE, AO, AH, A1 through A15. Each map has a community number, a panel number, a date, legends, scale, and benchmarks if available for surveyors. To obtain an official flood determination for your property, please fill out a Flood Information Request online. There is no fee for the official floodplain determination service. In December of 2007, FEMA issued new Flood maps for Pinal County. Many new floodplains were added to the County, Check now to see if your property may be one of those added to a previously unmapped flood zone.

The maps are also online through FEMA.gov or FEMA Floodmaps

Please note: The cities of Apache Junction, Casa Grande and the Town of Kearny conduct their own flood hazard determinations. If your property lies within the incorporated boundaries of one these cities, please contact their office for the most accurate information.