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How deep are water wells in Sanger, Texas?

Home water wells in and around Sanger, Texas are typically 420 to 500 feet deep (median 450 ft, 98 wells drilled in the last 10 years). Nearly all draw from the upper Trinity (Paluxy and Glen Rose, 96%), according to the state's Northern Trinity and Woodbine model (TWDB). Estimated cost of a complete well at the median depth: $14,000 to $33,500.

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 pointDenton County
What is under Sanger, TexasUnderground column at the center of Sanger: median well 450 ft, middle half 420 to 500 ft, water at 290 ft, and the layers of the state's model with their thickness.Washita and Fredericksburg: 0 to 251 ftWashita and Frederick…Upper Trinity: 251 to 724 ftUpper Trinitycontinues to 1,093 ft0200400600ftGround level · 691 ft above sea levelMedian well: 450 ftWater standing in the well from 290 ftWater level290 ftMiddle half420–500 ftMedian well450 ft

Under Sanger, Denton County

Layers at the center of Sanger 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 98 real wells.

Home wells in and around Sanger

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: Sanger and about 2 miles around it

Key figures

Typical depth (middle half)
420 to 500 feet
Median depth
450 feet
Deepest 10% are past
563 feet
Water level (median)
290 feet
35 wells
Yield (median)
15 gpm
53 wells, gallons per minute
Wells used
98
In the last 10 years
Inside the city limits
6
the rest within 2 miles
All years on file
209
median 470 ft, since 2001
Confidence
Standard (30 or more wells)

When the wells were finished, the water stood a median 290 feet below the surface (35 wells).

What is under Sanger, TexasUnderground column at the center of Sanger: median well 450 ft, middle half 420 to 500 ft, water at 290 ft, and the layers of the state's model with their thickness.Washita and Fredericksburg: 0 to 251 ftWashita and Frederick…Upper Trinity: 251 to 724 ftUpper Trinitycontinues to 1,093 ft0200400600ftGround level · 691 ft above sea levelMedian well: 450 ftWater standing in the well from 290 ftWater level290 ftMiddle half420–500 ftMedian well450 ft
Layers at the center of Sanger 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 98 real wells.

Which formation do wells in Sanger draw from?

Nearly all draw from the upper Trinity (Paluxy and Glen Rose, 96%), according to the state's Northern Trinity and Woodbine model (TWDB).

Layer (state's model)ShareWellsTypical depth (ft)
Upper TrinityPaluxy and Glen Rose96%94405–500
Washita and Fredericksburg3%3—
Lower TrinityTwin Mountains and Travis Peak1%1—

For 96% 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 Sanger

From the state's model, at 691 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)
Washita and Fredericksburglimestone, marl and clay0251251
Upper Trinitysandstone, limestone and marl251724473
Lower Trinitysandstone with shale and limestone7241,093369

Depth over time

Home well depth in and around Sanger has not changed meaningfully in 20 years: the median was 432 feet in 2003 to 2007 and 450 feet in 2021 to 2025 (a difference under 10% or within the margin of error).

PeriodMedian depth (ft)Wells
2001–200544830
2006–201048537
2011–201550033
2016–202046059
2021–202545043
2026under 10 wells7

What a well costs in Sanger

At the median depth for Sanger (450 feet), a complete home well would cost roughly $14,000 to $33,500: $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 (420 to 500 feet) the range runs from $13,000 to $36,500. 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 Sanger, Texas?

Home water wells in and around Sanger, Texas are typically 420 to 500 feet deep (median 450 ft, 98 wells drilled in the last 10 years). One in ten goes past 563 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 Sanger draw from?

Nearly all draw from the upper Trinity (Paluxy and Glen Rose, 96%), according to the state's Northern Trinity and Woodbine model (TWDB). This is an estimate from the state's regional model, not a survey of the lot.

How much does a water well cost in Sanger?

At the median depth (450 feet), a complete well would cost roughly $14,000 to $33,500, 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 Sanger?

When the wells were finished, the water stood a median 290 feet below the surface (35 wells). The level moves with drought and from one well to the next.

Do I need a permit to drill a well in Sanger?

Sanger is inside the North Texas Groundwater Conservation District. Groundwater conservation districts in Texas can require registering or permitting a new well, keeping set distances from property lines and other wells, and paying fees. Rules differ from district to district: ask the district before drilling.

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 96% 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 7,977 wells in the area of the state's Northern Trinity and Woodbine model (North and Central Texas) 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 74% of them, and that layer or the one next to it in at least 95%; among the 3,130 of those wells that the state places in a Trinity layer (Paluxy to Hosston) it is about 56%.

  • The layers come from the Texas Water Development Board's Northern Trinity and Woodbine model, with quarter mile cells, summarized here to about 1.3 miles. 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.
  • In this model every layer is at least 30 feet thick, even where the real rock is thinner or missing. Thin layers and the edges of the model are approximate.
  • Inside the Trinity this atlas does not name single model layers: it groups the Paluxy and Glen Rose (upper Trinity) and groups the Hensell, Pearsall and Hosston (lower Trinity, Twin Mountains and Travis Peak), because the check against the state's codes shows the method cannot separate them reliably.
  • "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/sanger-tx. License CC BY 4.0. https://doi.org/10.5281/zenodo.24126380.

Sources