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Stewart County, Tennessee

A shallow water table limits basements on 27% of Stewart County's mapped land. Shrink-swell clay limits houses without basements on under 1%.

31.8% of the county is in drought on the October 13, 2026 Drought Monitor map. FEMA's flood data list 10 flood losses here since 2016. 37% of homes were built before 1980, against 50% nationally; the median home dates from 1989.

Data as of October 13, 2026 · sources

<1%

expansive clay: shrink-swell limits slab homes

27%

high water table: limits basements

32%

in drought, October 13, 2026

37%

of homes built before 1980

Soil under Stewart County

Expansive clay (limits slab homes)under 0.1%
High water table (limits basements)27.4%
Septic fields very limited87.7%
Clay swell (LEP, by area)1.8%
High-swell land (LEP 6%+)0.6%
Mapped soil316,100 acres
Soil seriesShare hereSeries nationally: high water table
Bodine30%0%
Dickson10%n/a
Saffell8%n/a
Sengtown7%n/a
Lax4%n/a
Humphreys4%n/a
Houston County: 13%Montgomery County: 25%Trigg County: 13%Humphreys County: 24%Calloway County: 54%Henry County: 36%Benton County: 41%Dickson County: 12%Stewart County HoustonMontgomeryTriggHumphreysCallowayHenryBentonDicksonStewart
Stewart County (heavy outline) and nearby counties, shaded by high water table share.under 10%10-25%25-40%40-60%60%+

How we count · survey areas TN161 (2025-08-29)

What the numbers mean here

On 27% of Stewart 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: 38.83 in, 14.31 in below the 1991-2020 average year of 53.14 in.

USDA rates 88% of the land very limited for septic absorption fields.

Drought

31.8% of the county is in drought (D1 or worse) on the October 13, 2026 map. Part of the county was in drought in 30 of the last 52 weeks; the most was 100% of its area, in 25 weeks, most recently on the June 23, 2026 map.

October 21, 2025Share of area in drought, weeklyOctober 13, 2026
Category, October 13, 2026Share of county
D0 abnormally dry or worse100%
D1 moderate drought or worse31.8%
D2 severe or worse0%
D3 extreme or worse0%
D4 exceptional0%

Flood losses since 2016

10 flood losses since 2016, $303,549 paid. The worst year was 2016, with 4.

YearFlood losses
20164
20170
20180
20190
20200
20213
20220
20230
20243
20250
2026 to date0

Rain

Average year, 1991-202053.14 in
12 months to August 202638.83 in (-14.31)
202556.17 in (+3.03)
Wettest year since 18951979: 74.91 in
Driest year since 18951941: 33.00 in
Days with 1 inch or more, normal at DOVER 1 W (4 mi away)17.3

Homes

Housing units6,718
Median year built1989
Built before 198037%
Built 2000 or later29%
Owner-occupied81%
Median value, owner-occupied$204,700
Single-family detached73%

What repairs cost

Published ranges from cost guides, not quotes. More sources, and where they disagree.

WorkRangeSource
Basement waterproofing, US $3,000 to $10,000 Fixr, February 6, 2026
Sump pump installation, US $800 to $2,000 Fixr, January 31, 2025
Crawl space encapsulation, US $2,000 to $8,000 Fixr, August 29, 2025

Nearby counties

PlaceDistanceExpansive clayHigh water table
Houston County, TN 13 mi 0% 13%
Montgomery County, TN 24 mi 1% 25%
Trigg County, KY 25 mi under 1% 13%
Humphreys County, TN 28 mi 0% 24%
Calloway County, KY 29 mi under 1% 54%
Henry County, TN 29 mi under 1% 36%
Benton County, TN 30 mi under 1% 41%
Dickson County, TN 32 mi under 1% 12%

Sources: USDA SSURGO (August 29, 2025) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026) · NOAA (August 2026) · Census ACS 2020-2024. Methods · Data status