Hidalgo County, Texas

Survey Area TX215• Texas

The dominant drainage class is Well drained and the dominant hydrologic group is B (moderate infiltration). The most common soil order is Mollisols — grassland soils with a thick, dark, fertile topsoil rich in organic matter. This report summarizes the major soil map units across the survey area to help you understand what to expect when buying, building, or gardening in Hidalgo County, Texas. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map Unit	Acres	Drainage	Hydro Group	Dwellings	Septic
Hidalgo sandy clay loam, 0 to 1 percent slopes	134K	Well drained	B	Not limited	Somewhat limited
Brennan fine sandy loam, 0 to 1 percent slopes	87K	Well drained	B	Not limited	Somewhat limited
Nueces fine sand, 0 to 3 percent slopes	72K	Moderately well drained	B	Not limited	Somewhat limited
Hidalgo fine sandy loam, 0 to 1 percent slopes	60K	Well drained	B	Not limited	Somewhat limited
McAllen fine sandy loam, 0 to 1 percent slopes	55K	Well drained	B	Not limited	Somewhat limited
Nueces-Sarita complex, 0 to 3 percent slopes	54K	Moderately well drained	B	Not limited	Somewhat limited
Delmita-Randado complex, 0 to 3 percent slopes	52K	Well drained	C	Very limited	Very limited
Harlingen clay	48K	Moderately well drained	D	Very limited	Very limited
Raymondville clay loam, 0 to 1 percent slopes	37K	Moderately well drained	C	Very limited	Very limited
Delfina loamy fine sand, warm, 0 to 2 percent slopes	34K	Moderately well drained	C	Somewhat limited	Very limited
Willacy fine sandy loam, 0 to 1 percent slopes	32K	Well drained	B	Not limited	Somewhat limited
Hebbronville sandy loam, 0 to 1 percent slopes	23K	Well drained	A	Not limited	Not limited
Hidalgo-Urban land complex, 0 to 1 percent slopes	23K	Well drained	B	Not limited	Somewhat limited
Runn silty clay	19K	Moderately well drained	C	Very limited	Very limited
Brennan fine sandy loam, 0 to 3 percent slopes	17K	Well drained	B	Not limited	Somewhat limited
Racombes sandy clay loam, 0 to 1 percent slopes	17K	Well drained	B	Somewhat limited	Somewhat limited
Delmita and Bruni soils, 0 to 3 percent slopes	16K	Well drained	C	Very limited	Very limited
Sarita fine sand, 0 to 5 percent slopes	15K	Well drained	A	Not limited	Somewhat limited
Cuevitas-Randado complex, 0 to 3 percent slopes	15K	Well drained	D	Very limited	Very limited
Comitas loamy fine sand, 0 to 3 percent slopes	13K	Well drained	A	Not limited	Not limited

Soil Orders in This Area

The USDA classifies every soil into one of 12 soil orders. Here are the dominant orders found in this survey area.

Mollisols

Fertile grassland soils with thick, dark topsoil. Among the best for agriculture, building, and gardening.

Inceptisols

Young but developing soils found in mountains and river terraces. Variable properties — check drainage and bedrock depth.

Alfisols

Moderately weathered forest soils with clay-enriched subsoil. Productive for agriculture, generally good for building and septic.

Vertisols

High-clay soils that shrink and swell dramatically. Fertile but challenging for foundations and septic systems.

Entisols

Young soils with little development — found on floodplains, dunes, and steep slopes. Properties vary widely by setting.

What This Means

Building & Foundations

About 22% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.

Septic Systems

About 26% of soils have significant septic limitations, while others are more suitable. A perc test is essential — conditions vary across the area.

Gardening & Agriculture

Drainage is generally favorable for gardening. Adding compost and mulch will improve fertility and water retention. Test your soil's pH before planting — most vegetables prefer 6.0-7.0.