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How deep are water wells in Arlington, Texas?

Home water wells in and around Arlington, Texas are typically 120 to 220 feet deep (median 168 ft, 68 wells drilled in the last 10 years). Most draw from the Woodbine Aquifer (77%), according to the state's Northern Trinity and Woodbine model (TWDB). Estimated cost of a complete well at the median depth: $6,500 to $16,500.

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 pointTarrant County
What is under Arlington, TexasUnderground column at the center of Arlington: median well 168 ft, middle half 120 to 220 ft, water at 80 ft, and the layers of the state's model with their thickness.Above the Woodbine: 0 to 28 ftAbove the WoodbineWoodbine: 28 to 249 ftWoodbineWashita and Fredericksburg: 249 to 784 ftWashita and Frederick…continues to 1,768 ft0100200300400ftGround level · 652 ft above sea levelMedian well: 168 ftWater standing in the well from 80 ftWater level80 ftMiddle half120–220 ftMedian well168 ft

Under Arlington, Tarrant County

Layers at the center of Arlington 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 68 real wells.

Home wells in and around Arlington

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: Arlington and about 2 miles around it

Key figures

Typical depth (middle half)
120 to 220 feet
Median depth
168 feet
Deepest 10% are past
320 feet
Water level (median)
80 feet
52 wells
Yield (median)
15 gpm
64 wells, gallons per minute
Wells used
68
In the last 10 years
Inside the city limits
20
the rest within 2 miles
All years on file
138
median 200 ft, since 2002
Confidence
Standard (30 or more wells)

When the wells were finished, the water stood a median 80 feet below the surface (52 wells).

What is under Arlington, TexasUnderground column at the center of Arlington: median well 168 ft, middle half 120 to 220 ft, water at 80 ft, and the layers of the state's model with their thickness.Above the Woodbine: 0 to 28 ftAbove the WoodbineWoodbine: 28 to 249 ftWoodbineWashita and Fredericksburg: 249 to 784 ftWashita and Frederick…continues to 1,768 ft0100200300400ftGround level · 652 ft above sea levelMedian well: 168 ftWater standing in the well from 80 ftWater level80 ftMiddle half120–220 ftMedian well168 ft
Layers at the center of Arlington 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 68 real wells.

Which formation do wells in Arlington draw from?

Most draw from the Woodbine Aquifer (77%), according to the state's Northern Trinity and Woodbine model (TWDB).

Only 56% bottom out inside the Woodbine Aquifer: the rest keep going deeper but take their water from that layer.

Layer (state's model)ShareWellsTypical depth (ft)
Woodbine77%52135–200
At or just below the base of the WoodbineWashita and Fredericksburg15%1079–165
Upper TrinityPaluxy and Glen Rose9%6660–732

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 Arlington

From the state's model, at 652 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)
Above the Woodbineshale, chalk and marl02828
Woodbinesandstone with shale28249220
Washita and Fredericksburglimestone, marl and clay249784536
Upper Trinitysandstone, limestone and marl7841,348563
Lower Trinitysandstone with shale and limestone1,3481,768420

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 Arlington are getting deeper. For reference, the median was 240 feet in 2001 to 2005 (17 wells) and 160 feet in 2021 to 2025 (40 wells).

PeriodMedian depth (ft)Wells
2001–200524017
2006–201026620
2011–201522029
2016–202020027
2021–202516040
2026under 10 wells5

What a well costs in Arlington

At the median depth for Arlington (168 feet), a complete home well would cost roughly $6,500 to $16,500: $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 (120 to 220 feet) the range runs from $5,500 to $19,500. 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 Arlington, Texas?

Home water wells in and around Arlington, Texas are typically 120 to 220 feet deep (median 168 ft, 68 wells drilled in the last 10 years). One in ten goes past 320 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 Arlington draw from?

Most draw from the Woodbine Aquifer (77%), 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 Arlington?

At the median depth (168 feet), a complete well would cost roughly $6,500 to $16,500, 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 Arlington?

When the wells were finished, the water stood a median 80 feet below the surface (52 wells). The level moves with drought and from one well to the next.

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

Arlington is inside the Northern Trinity 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/arlington-tx. License CC BY 4.0. https://doi.org/10.5281/zenodo.24126380.

Sources