Madison County, Georgia
USDA's soil survey flags shrink-swell clay on under 1% of Madison County's mapped land and a shallow water table under basements on 8%, both below the national shares of 15% and 29%. 99.9% of the county is in drought on the October 13, 2026 Drought Monitor map.
FEMA's flood data list 1 flood losses here since 2016. 34% of homes were built before 1980, against 50% nationally; the median home dates from 1990.
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 Madison County
| Expansive clay (limits slab homes) | 0.1% |
| High water table (limits basements) | 8.3% |
| Septic fields very limited | 24.7% |
| Clay swell (LEP, by area) | 1.9% |
| High-swell land (LEP 6%+) | 0.1% |
| Mapped soil | 182,800 acres |
How we count · survey areas GA636 (2025-09-05)
What the numbers mean here
Rain over the 12 months to August 2026: 39.16 in, 10.55 in below the 1991-2020 average year of 49.71 in.
With shrink-swell clay on under 1% and a shallow water table on 8% of the land, the soil survey points to neither problem across most of Madison County; conditions still vary lot by lot.
Drought
99.9% of the county is in drought (D1 or worse) on the October 13, 2026 map. Part of the county was in drought in 35 of the last 52 weeks; the most was 100% of its area, in 26 weeks, most recently on the June 16, 2026 map.
| Category, October 13, 2026 | Share of county |
|---|---|
| D0 abnormally dry or worse | 100% |
| D1 moderate drought or worse | 99.9% |
| D2 severe or worse | 53% |
| D3 extreme or worse | 0% |
| D4 exceptional | 0% |
Flood losses since 2016
1 flood losses since 2016, $1,448 paid. The worst year was 2019, with 1.
| Year | Flood losses |
|---|---|
| 2016 | 0 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 1 |
| 2020 | 0 |
| 2021 | 0 |
| 2022 | 0 |
| 2023 | 0 |
| 2024 | 0 |
| 2025 | 0 |
| 2026 to date | 0 |
Rain
| Average year, 1991-2020 | 49.71 in |
| 12 months to August 2026 | 39.16 in (-10.55) |
| 2025 | 47.72 in (-1.99) |
| Wettest year since 1895 | 1929: 75.88 in |
| Driest year since 1895 | 2016: 31.31 in |
| Days with 1 inch or more, normal at ATHENS BEN EPPS AP (14 mi away) | 15 |
Homes
| Housing units | 12,533 |
| Median year built | 1990 |
| Built before 1980 | 34% |
| Built 2000 or later | 30% |
| Owner-occupied | 77% |
| Median value, owner-occupied | $219,700 |
| Single-family detached | 65% |
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 |
|---|---|---|---|
| Clarke County, GA | 15 mi | 0% | 8% |
| Franklin County, GA | 17 mi | under 1% | 10% |
| Oglethorpe County, GA | 20 mi | 6% | 10% |
| Jackson County, GA | 20 mi | 0% | 10% |
| Hart County, GA | 21 mi | 0% | 6% |
| Elbert County, GA | 21 mi | 12% | 19% |
| Banks County, GA | 22 mi | 0% | 11% |
| Oconee County, GA | 24 mi | 0% | 8% |
Sources: USDA SSURGO (September 5, 2025) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026) · NOAA (August 2026) · Census ACS 2020-2024. Methods · Data status