Largo Flood Zones by Neighborhood
Flood zone decides two things for a buyer in Largo: whether a lender will require flood insurance, and roughly what it costs. FEMA maps every parcel into a zone — X (and B/C) is low-to-moderate risk with no mandatory coverage; A-series zones (A, AE, AH, AO) are the Special Flood Hazard Area, the 1%-a-year floodplain, where coverage is mandatory with a federally backed mortgage. This page samples the listing addresses in each neighborhood against the current FEMA layer so you can see the pattern before you fall for a house.
Across 20 Largo neighborhoods and 251 listing addresses checked against the FEMA National Flood Hazard Layer, 85% of addresses sit outside the Special Flood Hazard Area (Zone X), 15% are in A-series high-risk zones. 2 neighborhoods are majority high-risk; 16 sampled entirely outside the SFHA. In a high-risk zone, flood insurance is required with any federally backed mortgage and Florida’s Citizens policies now require it regardless of zone (all policies by 2027).
Largo neighborhoods ranked by flood exposure
Share of sampled addresses by FEMA zone group. Sorted by high-risk share; n is the number of distinct addresses checked (minimum 8).
| Neighborhood | Outside SFHA (X) | A-series (high risk) | V-series (coastal) | Addresses |
|---|---|---|---|---|
| Harbor Hills | 9% | 91% | — | 11 |
| Harbor Hills | 19% | 81% | — | 16 |
| harbor bluffs | 56% | 44% | — | 25 |
| Keene Park | 80% | 20% | — | 15 |
| Del Prado | 100% | 0% | — | 15 |
| Roosevelt Groves | 100% | 0% | — | 14 |
| Orange Blossom Ridge | 100% | 0% | — | 14 |
| Somerset Lakes | 100% | 0% | — | 13 |
| Harbor Hills Of Palm Harbor Palm Harbor | 100% | 0% | — | 13 |
| Big Acres | 100% | 0% | — | 13 |
| Village Green | 100% | 0% | — | 12 |
| Cumberland Park | 100% | 0% | — | 12 |
| Lake Seminole Village | 100% | 0% | — | 12 |
| Floral Gardens | 100% | 0% | — | 11 |
| Ridgecrest Acres | 100% | 0% | — | 11 |
| Azalea Shores | 100% | 0% | — | 10 |
| Keene Lake Manor | 100% | 0% | — | 9 |
| Marsandra Estates | 100% | 0% | — | 9 |
| pinebrook estates north | 100% | 0% | — | 8 |
| Woodbrook Highlands | 100% | 0% | — | 8 |
Sampled entirely outside the flood hazard area
Del Prado, Roosevelt Groves, Orange Blossom Ridge, Somerset Lakes, Harbor Hills Of Palm Harbor Palm Harbor, Big Acres, Village Green, Cumberland Park, Lake Seminole Village, Floral Gardens, Ridgecrest Acres, Azalea Shores, Keene Lake Manor, Marsandra Estates, pinebrook estates north, Woodbrook Highlands.
Majority high-risk neighborhoods
Harbor Hills (91%), Harbor Hills (81%). Expect a flood-insurance quote before you make an offer; elevation certificates matter here.
How to read this
These are shares of listing addresses we have checked, not parcel counts, and FEMA revises maps; a neighborhood at 0% can still contain a low lot. Always verify the specific address at msc.fema.gov. Source: FEMA National Flood Hazard Layer, address-level lookups compiled by Momentum Research, September 2026.