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How deep are water wells in Steiner Ranch, Texas?

Home water wells in and around Steiner Ranch, Texas are typically 430 to 535 feet deep (median 490 ft, 41 wells drilled in the last 10 years). No single layer dominates: 51% draw from the Lower Trinity, 27% from the lower Trinity (Twin Mountains and Travis Peak) and 17% from the Middle Trinity, according to the state's Hill Country Trinity model and the Northern Trinity and Woodbine model (TWDB). Estimated cost of a complete well at the median depth: $15,000 to $36,000.

Updated every day from Texas Water Development Board driller reports. Last update: November 11, 2026, using the state file of November 10, 2026.

See the wells and layers at an exact pointTravis County
What is under Steiner Ranch, TexasUnderground column at the center of Steiner Ranch: median well 490 ft, middle half 430 to 535 ft, water at 266 ft, and the layers of the state's model with their thickness.Upper Trinity: 0 to 399 ftUpper TrinityLower Trinity: 399 to 1,669 ftLower Trinitycontinues to 1,669 ft0200400600800ftGround level · 760 ft above sea levelMedian well: 490 ftWater standing in the well from 266 ftWater level266 ftMiddle half430–535 ftMedian well490 ft

Under Steiner Ranch, Travis County

Layers at the center of Steiner Ranch from TWDB's Northern Trinity and Woodbine model (quarter mile cells, summarized here to about 1.3 miles), at true depth scale. The well and the water are the median of 41 real wells.

Home wells in and around Steiner Ranch

Each dot is a home well from a state driller report, colored by depth. Tap one for its details and official report. Tap an empty spot to see what is under that point.

See underground

Well depth (ft)

  • <100
  • 100
  • 200
  • 300
  • 400
  • 600
  • 800+

Dashed line: Steiner Ranch and about 2 miles around it

Key figures

Typical depth (middle half)
430 to 535 feet
Median depth
490 feet
Deepest 10% are past
620 feet
Water level (median)
266 feet
26 wells
Yield (median)
30 gpm
40 wells, gallons per minute
Wells used
41
In the last 10 years
Inside the city limits
5
the rest within 2 miles
All years on file
131
median 510 ft, since 2002
Confidence
Standard (30 or more wells)

When the wells were finished, the water stood a median 266 feet below the surface (26 wells).

What is under Steiner Ranch, TexasUnderground column at the center of Steiner Ranch: median well 490 ft, middle half 430 to 535 ft, water at 266 ft, and the layers of the state's model with their thickness.Upper Trinity: 0 to 399 ftUpper TrinityLower Trinity: 399 to 1,669 ftLower Trinitycontinues to 1,669 ft0200400600800ftGround level · 760 ft above sea levelMedian well: 490 ftWater standing in the well from 266 ftWater level266 ftMiddle half430–535 ftMedian well490 ft
Layers at the center of Steiner Ranch from TWDB's Northern Trinity and Woodbine model (quarter mile cells, summarized here to about 1.3 miles), at true depth scale. The well and the water are the median of 41 real wells.

Which formation do wells in Steiner Ranch draw from?

No single layer dominates: 51% draw from the Lower Trinity, 27% from the lower Trinity (Twin Mountains and Travis Peak) and 17% from the Middle Trinity, according to the state's Hill Country Trinity model and the Northern Trinity and Woodbine model (TWDB). Read that as the most likely layer, not a certain one: where our method names the Lower Trinity, the state's own aquifer code agrees in about 53% of wells.

Layer (state's model)ShareWellsTypical depth (ft)
Lower Trinity51%21490–610
Lower TrinityTwin Mountains and Travis Peak27%11475–515
Middle Trinity17%7188–400
Upper TrinityPaluxy and Glen Rose5%2—

For 100% of these wells the report says where the water enters (the screen or the open hole), and we use the middle of that interval.

The layers under the center of Steiner Ranch

From the state's model, at 760 feet above sea level. These are the model's depths at that one point, not those of any particular lot.

Depths in feet below ground.
Layer (state's model)Top (ft)Bottom (ft)Thickness (ft)
Upper Trinitysandstone, limestone and marl0399399
Lower Trinitysandstone with shale and limestone3991,6691,270

Depth over time

There are not enough wells in both 2003 to 2007 and 2021 to 2025 (at least 30 in each) to say with confidence whether wells in and around Steiner Ranch are getting deeper. For reference, the median was 620 feet in 2001 to 2005 (25 wells) and 490 feet in 2021 to 2025 (15 wells).

PeriodMedian depth (ft)Wells
2001–200562025
2006–201043520
2011–201554535
2016–202049832
2021–202549015
2026under 10 wells4

What a well costs in Steiner Ranch

At the median depth for Steiner Ranch (490 feet), a complete home well would cost roughly $15,000 to $36,000: $25 to $60 per foot for drilling, casing and seal, plus $2,500 to $6,500 for the pump, pressure tank, controls and hookup at the well. Across the whole middle half of depths (430 to 535 feet) the range runs from $13,500 to $38,500. This is TerraFunded's estimate from published Texas prices, not a quote, and it leaves out trenching and the line to the house. Get prices from at least two licensed drillers.

Where it sits

Nearby places

Median depth of home wells in each place.

All Texas cities and towns

Common questions

How deep do you have to drill a well in Steiner Ranch, Texas?

Home water wells in and around Steiner Ranch, Texas are typically 430 to 535 feet deep (median 490 ft, 41 wells drilled in the last 10 years). One in ten goes past 620 feet. The depth a given tract needs depends on where it sits and what layers the driller hits.

What aquifer or formation do wells in Steiner Ranch draw from?

No single layer dominates: 51% draw from the Lower Trinity, 27% from the lower Trinity (Twin Mountains and Travis Peak) and 17% from the Middle Trinity, according to the state's Hill Country Trinity model and the Northern Trinity and Woodbine model (TWDB). Read that as the most likely layer, not a certain one: where our method names the Lower Trinity, the state's own aquifer code agrees in about 53% of wells. This is an estimate from the state's regional model, not a survey of the lot.

How much does a water well cost in Steiner Ranch?

At the median depth (490 feet), a complete well would cost roughly $15,000 to $36,000, by TerraFunded's estimate from published Texas driller prices. The real price comes from a licensed driller's quote.

How deep is the water in Steiner Ranch?

When the wells were finished, the water stood a median 266 feet below the surface (26 wells). The level moves with drought and from one well to the next.

Do I need a permit to drill a well in Steiner Ranch?

In the state's boundary file (current as of November 2019) no groundwater conservation district covers Steiner Ranch. Districts created or enlarged since then are missing from that file, so confirm with the county or TWDB before drilling. Anywhere in Texas the well must be drilled by a licensed driller, who files the report with the state.

How these numbers are made

We count new and replacement domestic (home) wells whose coordinates fall inside the place boundary or within 2 miles of it. We use the last 10 years when there are at least 30 wells; otherwise all since 2001. The median is the middle well and the middle half runs from the 25th to the 75th percentile.

To tell which layer a well draws from, we take the ground elevation at its location, subtract the depth of the interval where water enters (or the bottom of the hole when the report does not give one) and see which layer of the state's model that point falls in.

For 100% of these wells the report says where the water enters (the screen or the open hole), and we use the middle of that interval.

How well it works: In 2,665 wells in the Texas Hill Country where the State of Texas recorded the aquifer, our estimate of the formation the well draws from names the same layer of the state's model in about 76% of them, and that layer or the one next to it in at least 98%.

  • The layers come from the Texas Water Development Board's Hill Country Trinity model, with 1 mile cells. It is a regional model, not a survey of any lot: between one model point and the next, the real depth of each layer can differ.
  • "Near or below the base of the Trinity" means the well reaches the bottom of the model or passes it, often by tens of feet. Older rock that the model does not include may lie there.
  • We never use the model's water levels. The water level on this page is the one each driller measured when the well was finished.

These are depths of real wells drilled nearby, not a promise about any property. Groundwater can change over short distances and with drought. A licensed water well driller can tell you what to expect on a specific tract.

Read the full methodology · Download the data (CSV, CC BY 4.0)

How to cite

TerraFunded (2026). Texas Well Atlas: Underground. From Texas Water Development Board driller reports and groundwater availability models (data as of November 10, 2026). https://terrafunded.com/wells/places/steiner-ranch-tx. License CC BY 4.0. https://doi.org/10.5281/zenodo.24126380.

Sources