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Earth, Texas

Inside Earth's city limits, shrink-swell clay limits houses without basements on 9% of mapped land, the 4th-highest of 6 cities in Lamb County. A shallow water table limits basements on 4%, the 2nd-highest of 6 cities in Lamb County.

That clay share is close to Lamb County's 14%. FEMA's flood data list no flood losses since 2016 in ZIP code 79031 overlapping the city. Of its 499 homes, 85% were built before 1980; the median dates from 1964.

Data as of October 13, 2026 · sources · in Lamb County

9%

expansive clay: shrink-swell limits slab homes

4%

high water table: limits basements

0

flood losses since 2016 in 1 overlapping ZIP

85%

of homes built before 1980

Foundation repair in Earth

Foundation repair in Earth: shrink-swell clay limits slab homes on 9% of Earth's mapped land.

About 400 of Earth's 499 homes are detached houses.

Who designs the repairThe ASCE Texas Section's repair guidelines say a Texas-licensed engineer should evaluate the foundation and design the repair (2022 guidelines)
PricesCost guide ranges compared

Soil under Earth city limits

Expansive clay (limits slab homes)9.4%
High water table (limits basements)3.9%
Septic fields very limited14.8%
Clay swell (LEP, by area)3.3%
High-swell land (LEP 6%+)8.8%
Mapped soil768 acres
Soil seriesShare hereSeries nationally: expansive clay
Amarillo34%0%
Zita14%n/a
Midessa14%n/a
Portales7%n/a
Acuff6%1%
Olton5%91%
Lamb CountyEarth
Earth city limits inside Lamb County, shaded by the city's expansive clay share.under 10%10-25%25-40%40-60%60%+

How we count

What the numbers mean here

With shrink-swell clay on 9% and a shallow water table on 4% of the land, the soil survey points to neither problem across most of Earth; conditions still vary lot by lot.

Drought in Lamb County

0% of Lamb County is in drought (D1 or worse) on the October 13, 2026 map. County detail.

October 21, 2025Share of area in drought, weeklyOctober 13, 2026

Flood losses by ZIP code

FEMA flood records since 2016 in the ZIP codes that overlap Earth. ZIP areas reach past city limits.

ZIPShare of city landFlood lossesPaid
79031100%0$0

Homes in Earth

Housing units499
Median year built1964
Built before 198085%
Built 2000 or later3%
Owner-occupied72%
Median value, owner-occupied$78,300
Single-family detached81%

Nearby cities

PlaceDistanceExpansive clayHigh water table
Springlake 6 mi 37% under 1%
Sudan 13 mi 0% 0%
Amherst 15 mi 1% 1%
Olton 16 mi 62% 7%
Muleshoe 18 mi 8% 3%
Hart 20 mi 91% 1%
Littlefield 22 mi 21% 3%
Dimmitt 22 mi 90% 7%

Sources: USDA SSURGO (August 5, 2026) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026) · Census ACS 2020-2024. Methods · Data status