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How deep are water wells in Alton, Texas?

Only 21 home water wells in and around Alton, Texas have been reported since 2001, so treat this as a rough guide: the middle half are 240 to 320 feet deep (median 240 ft). Estimated cost of a complete well at the median depth: $8,500 to $21,000.

This page is based on fewer than 30 wells, so it is kept out of search engines until more reports come in. Treat every figure as a rough guide.

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 pointHidalgo County
What is under Alton, TexasUnderground column at the center of Alton: median well 240 ft, middle half 240 to 320 ft, water at 25 ft.No state layer model here yet0100200300400500ftGround levelMedian well: 240 ftWater standing in the well from 25 ftWater level25 ftMedian well240 ftMiddle half240–320 ft

Under Alton, Hidalgo County

The well and the water are the median of 21 real wells. This atlas does not have a state layer model for this area yet.

Home wells in and around Alton

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: Alton and about 2 miles around it

Key figures

Typical depth (middle half)
240 to 320 feet
Median depth
240 feet
Deepest 10% are past
400 feet
Water level (median)
25 feet
21 wells
Wells used
21
Since 2001
Inside the city limits
0
the rest within 2 miles
All years on file
21
median 240 ft, since 2003
Confidence
Few wells (10 to 29)

When the wells were finished, the water stood a median 25 feet below the surface (21 wells), well above the bottom: the typical well holds about 215 feet of water.

What is under Alton, TexasUnderground column at the center of Alton: median well 240 ft, middle half 240 to 320 ft, water at 25 ft.No state layer model here yet0100200300400500ftGround levelMedian well: 240 ftWater standing in the well from 25 ftWater level25 ftMedian well240 ftMiddle half240–320 ft
The well and the water are the median of 21 real wells. This atlas does not have a state layer model for this area yet.

Which formation do wells in Alton draw from?

We cannot say yet for Alton. This atlas assigns layers with the TWDB layered models processed so far (the Northern Trinity and Woodbine model, the Hill Country Trinity model, the northern Gulf Coast Aquifer model and the High Plains Aquifer System model), and none covers this area with enough wells. The depth, water level and yield on this page do come from the real wells here.

See the aquifers mapped under Hidalgo County

Depth over time

Too few wells per period in and around Alton to compare depth over time. Since 2003, 21 home wells have been reported, with a median of 240 feet.

PeriodMedian depth (ft)Wells
2001–200528012
2006–2010under 10 wells6
2011–2015under 10 wells1
2016–2020under 10 wells1
2021–2025under 10 wells1

What a well costs in Alton

At the median depth for Alton (240 feet), a complete home well would cost roughly $8,500 to $21,000: $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 (240 to 320 feet) the range runs from $8,500 to $25,500. 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 Alton, Texas?

Only 21 home water wells in and around Alton, Texas have been reported since 2001, so treat this as a rough guide: the middle half are 240 to 320 feet deep (median 240 ft). One in ten goes past 400 feet. The depth a given tract needs depends on where it sits and what layers the driller hits.

How much does a water well cost in Alton?

At the median depth (240 feet), a complete well would cost roughly $8,500 to $21,000, 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 Alton?

When the wells were finished, the water stood a median 25 feet below the surface (21 wells), well above the bottom: the typical well holds about 215 feet of water. The level moves with drought and from one well to the next.

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

In the state's boundary file (current as of November 2019) no groundwater conservation district covers Alton. 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.

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/alton-tx. License CC BY 4.0. https://doi.org/10.5281/zenodo.24126380.

Sources