HomeNorth CarolinaIredell County

Iredell County, North Carolina

USDA's soil survey flags shrink-swell clay on 1% of Iredell County's mapped land and a shallow water table under basements on 9%, both below the national shares of 15% and 29%. 4.6% of the county is in drought on the October 13, 2026 Drought Monitor map.

FEMA's flood data list 27 flood losses here since 2016. 27% of homes were built before 1980, against 50% nationally; the median home dates from 1997.

Data as of October 13, 2026 · sources

1%

expansive clay: shrink-swell limits slab homes

9%

high water table: limits basements

5%

in drought, October 13, 2026

27%

of homes built before 1980

Soil under Iredell County

Expansive clay (limits slab homes)1.2%
High water table (limits basements)8.8%
Septic fields very limited45.1%
Clay swell (LEP, by area)1.9%
High-swell land (LEP 6%+)0.7%
Urban land, not rated4.3%
Mapped soil380,045 acres
Soil seriesShare hereSeries nationally: expansive clay
Tomlin13%n/a
Fairview13%0%
Cecil10%0%
Pacolet9%0%
Clifford9%0%
Lloyd5%n/a
Alexander County: 0%Davie County: 15%Catawba County: 0%Rowan County: 17%Yadkin County: 1%Lincoln County: 1%Wilkes County: 0%Cabarrus County: 22%Iredell County AlexanderDavieCatawbaRowanYadkinLincolnWilkesCabarrusIredell
Iredell County (heavy outline) and nearby counties, shaded by expansive clay share.under 10%10-25%25-40%40-60%60%+

How we count · survey areas NC097 (2025-09-02)

What the numbers mean here

Rain over the 12 months to August 2026: 33.87 in, 11.99 in below the 1991-2020 average year of 45.86 in.

With shrink-swell clay on 1% and a shallow water table on 9% of the land, the soil survey points to neither problem across most of Iredell County; conditions still vary lot by lot.

Drought

4.6% of the county is in drought (D1 or worse) on the October 13, 2026 map. Part of the county was in drought in 46 of the last 52 weeks; the most was 100% of its area, in 33 weeks, most recently on the July 28, 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 worse4.6%
D2 severe or worse0%
D3 extreme or worse0%
D4 exceptional0%

Flood losses since 2016

27 flood losses since 2016, $311,902 paid. The worst year was 2018, with 11.

YearFlood losses
20165
20170
201811
20191
20208
20210
20220
20231
20241
20250
2026 to date0

Rain

Average year, 1991-202045.86 in
12 months to August 202633.87 in (-11.99)
202539.19 in (-6.67)
Wettest year since 18952020: 68.03 in
Driest year since 18951986: 30.95 in
Days with 1 inch or more, normal at STATESVILLE 2 NNE (0 mi away)12.3

Homes

Housing units84,199
Median year built1997
Built before 198027%
Built 2000 or later44%
Owner-occupied72%
Median value, owner-occupied$321,400
Single-family detached71%

What repairs cost

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

WorkRangeSource
Foundation repair, US $2,200 to $8,200 Fixr, January 27, 2026
Pier-and-beam repair, US $2,000 to $15,000 Fixr, January 27, 2026
Foundation inspection, US $300 to $600 Fixr, January 31, 2025

Nearby counties

PlaceDistanceExpansive clayHigh water table
Alexander County, NC 19 mi 0% 5%
Davie County, NC 20 mi 15% 13%
Catawba County, NC 22 mi under 1% 9%
Rowan County, NC 23 mi 17% 15%
Yadkin County, NC 27 mi 1% 9%
Lincoln County, NC 30 mi 1% 9%
Wilkes County, NC 32 mi 0% 6%
Cabarrus County, NC 34 mi 22% 22%

Sources: USDA SSURGO (September 2, 2025) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026) · NOAA (August 2026) · Census ACS 2020-2024. Methods · Data status