City · Flood risk
Homes in Miami
120,130
On the state tax roll
Flood claims since 2016
713
In 8 storms, 501 paid
Most claims in one storm
680
Hurricane Irma 2017, 485 paid
FEMA flood map in effect
Sep 2009
First flood map 1972
Flood insurance discount
20% off
City of Miami, Community Rating System Class 6
Sinkhole reports
None
On file with the Florida Geological Survey
Miami has 15% of Miami-Dade County's homes and 14% of its flood claims since 2016.
| Miami | All of Miami-Dade | |
|---|---|---|
| Homes | 120,130 | 811,151 |
| Flood claims since 2016 | 713 | 5,257 |
| FEMA aid, water inside | No city figure | 9,990 |
National Flood Insurance Program claims, filed in the city and across the county.
| Storm | Miami | All of Miami-Dade |
|---|---|---|
| Hurricane Irma 2017 | 680 | 3,765 |
| Tropical Storm Eta 2020 | 20 | 585 |
| Hurricane Ian 2022 | 4 | 52 |
| Fort Lauderdale flood 2023 | 1 | 38 |
| South Florida flood June 2024 | 3 | 759 |
| Hurricane Helene 2024 | 0 | 10 |
| Hurricane Milton 2024 | 0 | 15 |
Lenders require flood insurance on a federally backed mortgage when the building is in one of FEMA's high-risk zones, the ones starting with A or V. The map that sets those zones in Miami took effect on September 11, 2009. Outside those zones insurance is optional, but claims come from moderate- and low-risk zones too, so it's worth checking the zone and the floor height of the exact home.
The flood map in effect for Miami took effect on September 11, 2009. The city's first flood map dates to September 29, 1972. FEMA has adopted newer maps for parts of Miami-Dade County that haven't taken effect yet; until they do, the current map sets insurance requirements.
The City of Miami is in FEMA's Community Rating System at Class 6, which takes 20% off National Flood Insurance Program premiums for policies inside the high-risk flood zone. Classes run from 10 to 1, and each step down adds 5% off.
By National Flood Insurance Program claims filed in Miami, the worst recent storms were Hurricane Irma 2017 (680 claims, 485 paid), Tropical Storm Eta 2020 (20 claims, 11 paid), and Hurricane Ian 2022 (4 claims, 1 paid). Across Miami-Dade County, 9,988 FEMA aid registrations reported water inside the home after Hurricane Irma 2017. Claims only count insured homes, so the real number of flooded homes is higher.
On the Atlantic coast, flooding comes from hurricane surge, seasonal king tides that back up through storm drains, and heavy rain on flat ground with a high water table. The storms we track for Southeast Florida are Hurricane Matthew 2016, Hurricane Irma 2017, Tropical Storm Eta 2020, Hurricane Nicole 2022, Fort Lauderdale flood 2023, South Florida flood June 2024, Hurricane Helene 2024, and Hurricane Milton 2024.
Miami sits on Biscayne Bay at the mouth of the Miami River, on flat limestone ground a few feet above sea level.
Miami has about 120,000 homes on the state tax roll inside its city limits. The FEMA flood map in effect for Miami took effect on September 11, 2009; the city's first flood map dates to 1972. Since 2016, 713 flood insurance claims have been filed in Miami in the storms we track, 501 of them paid. The storm that left the most was Hurricane Irma 2017, with 680, followed by Tropical Storm Eta 2020 with 20. The City of Miami is in FEMA's Community Rating System at Class 6, which takes 20% off National Flood Insurance Program premiums for policies inside the high-risk flood zone.
On the Atlantic coast, flooding comes from hurricane surge, seasonal king tides that back up through storm drains, and heavy rain on flat ground with a high water table. The storms we track for Southeast Florida are Hurricane Matthew 2016, Hurricane Irma 2017, Tropical Storm Eta 2020, Hurricane Nicole 2022, Fort Lauderdale flood 2023, South Florida flood June 2024, Hurricane Helene 2024, and Hurricane Milton 2024.
Search any address in Miami for a free report: its FEMA flood zone and whether insurance is required, its risk level, and its floor height against the flood line. The full report adds a 0 to 100 risk score, the flood insurance cost, the home's record in each storm we track, and a PDF to share.
Compiled by FloodMaps from FEMA, state, and county records. Data dates: 2026 county tax roll (preliminary values); flood claims for storms from 2016 through Hurricane Milton (October 2024); FEMA map dates and insurance discounts as of October 8, 2026.