Lake Tanglewood, Texas

Inside Lake Tanglewood's city limits, shrink-swell clay limits houses without basements on under 1% of mapped land. A shallow water table limits basements on 0%.

That clay share is below Randall County's 66%. FEMA's flood data list 9 flood losses since 2016 in ZIP code 79118 overlapping the city. Of its 389 homes, 39% were built before 1980; the median dates from 1985.

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

<1%

expansive clay: shrink-swell limits slab homes

high water table: limits basements

flood losses since 2016 in 1 overlapping ZIP

39%

of homes built before 1980

Foundation repair in Lake Tanglewood

Foundation repair in Lake Tanglewood: shrink-swell clay limits slab homes on under 1% of Lake Tanglewood's mapped land.

About 400 of Lake Tanglewood's 389 homes are detached houses.

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

Soil under Lake Tanglewood city limits

Expansive clay (limits slab homes)	0.3%
High water table (limits basements)	0.0%
Septic fields very limited	45.2%
Clay swell (LEP, by area)	1.9%
High-swell land (LEP 6%+)	0.1%
Mapped soil	956 acres

Soil series	Share here	Series nationally: expansive clay
Mobeetie	31%	n/a
Potter	21%	n/a
Veal	9%	n/a
Plemons	8%	n/a
Berda	4%	n/a
Guadalupe	2%	n/a

Lake Tanglewood city limits inside Randall 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 under 1% and a shallow water table on 0% of the land, the soil survey points to neither problem across most of Lake Tanglewood; conditions still vary lot by lot.

Drought in Randall County

61.7% of Randall 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 Lake Tanglewood. ZIP areas reach past city limits.

ZIP	Share of city land	Flood losses	Paid
79118	98%	9	$446,569

Homes in Lake Tanglewood

Housing units	389
Median year built	1985
Built before 1980	39%
Built 2000 or later	14%
Owner-occupied	97%
Median value, owner-occupied	$633,600
Single-family detached	98%

Nearby cities

Place	Distance	Expansive clay	High water table
Palisades	1 mi	1%	0%
Timbercreek Canyon	2 mi	6%	0%
Canyon	9 mi	19%	under 1%
Amarillo	10 mi	49%	7%
Bishop Hills	17 mi	0%	under 1%
Happy	22 mi	69%	1%
Claude	24 mi	99%	1%
Panhandle	30 mi	over 99%	8%

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