Flagler County, Florida
A shallow water table limits basements on 93% of Flagler County's mapped land, a higher share than 97% of US counties and the 7th highest of 66 Florida counties. Shrink-swell clay limits houses without basements on 6%.
None of the county is in drought on the October 13, 2026 Drought Monitor map, after 41.8% a week earlier. FEMA's flood data list 1,751 flood losses here since 2016, 0% of them in buildings with basements. 8% of homes were built before 1980, against 50% nationally; the median home dates from 2002.
Data as of October 13, 2026 · sources
expansive clay: shrink-swell limits slab homes
high water table: limits basements
in drought, October 13, 2026
of homes built before 1980
Soil under Flagler County
| Expansive clay (limits slab homes) | 6.2% |
| High water table (limits basements) | 92.8% |
| Septic fields very limited | 94.0% |
| Clay swell (LEP, by area) | 1.9% |
| High-swell land (LEP 6%+) | 6.2% |
| Mapped soil | 324,800 acres |
| Soil series | Share here | Series nationally: high water table |
|---|---|---|
| Wabasso | 8% | n/a |
| Pineda | 7% | n/a |
| Winder | 7% | n/a |
| Myakka | 6% | 100% |
| Riviera | 6% | n/a |
| Favoretta | 5% | n/a |
How we count · survey areas FL035 (2025-08-28)
What the numbers mean here
On 93% of Flagler County's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
Rain over the 12 months to August 2026: 43.45 in, 8.81 in below the 1991-2020 average year of 52.26 in.
USDA rates 94% of the land very limited for septic absorption fields.
Drought
0% of the county is in drought (D1 or worse) on the October 13, 2026 map. Part of the county was in drought in 41 of the last 52 weeks; the most was 100% of its area, in 30 weeks, most recently on the August 25, 2026 map.
| Category, October 13, 2026 | Share of county |
|---|---|
| D0 abnormally dry or worse | 42% |
| D1 moderate drought or worse | 0% |
| D2 severe or worse | 0% |
| D3 extreme or worse | 0% |
| D4 exceptional | 0% |
Flood losses since 2016
1,751 flood losses since 2016, $76.3 million paid. The worst year was 2017, with 754. Foundations of the buildings, where recorded: 75% slabs, 6% crawl spaces, 18% elevated. Median water depth outside the building: 12 in.
| Year | Flood losses |
|---|---|
| 2016 | 476 |
| 2017 | 754 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 428 |
| 2023 | 3 |
| 2024 | 70 |
| 2025 | 0 |
| 2026 to date | 2 |
Rain
| Average year, 1991-2020 | 52.26 in |
| 12 months to August 2026 | 43.45 in (-8.81) |
| 2025 | 42.39 in (-9.87) |
| Wettest year since 1895 | 1964: 71.43 in |
| Driest year since 1895 | 2006: 32.89 in |
| Days with 1 inch or more, normal at HASTINGS 4NE (23 mi away) | 16.5 |
Homes
| Housing units | 60,934 |
| Median year built | 2002 |
| Built before 1980 | 8% |
| Built 2000 or later | 58% |
| Owner-occupied | 83% |
| Median value, owner-occupied | $364,900 |
| Single-family detached | 80% |
What repairs cost
Published ranges from cost guides, not quotes. More sources, and where they disagree.
Nearby counties
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| St. Johns County, FL | 29 mi | 5% | 88% |
| Putnam County, FL | 29 mi | 1% | 68% |
| Volusia County, FL | 30 mi | 3% | 74% |
| Marion County, FL | 49 mi | 5% | 35% |
| Clay County, FL | 49 mi | under 1% | 68% |
| Seminole County, FL | 55 mi | 4% | 63% |
| Lake County, FL | 56 mi | 4% | 51% |
| Bradford County, FL | 62 mi | 0% | 93% |
Sources: USDA SSURGO (August 28, 2025) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026) · NOAA (August 2026) · Census ACS 2020-2024. Methods · Data status