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How deep are water wells in Randolph AFB, Texas?

Only 11 home water wells in and around Randolph AFB, Texas have been reported since 2001, so treat this as a rough guide: the middle half are 38 to 60 feet deep (median 45 ft). Estimated cost of a complete well at the median depth: $3,500 to $9,000.

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 pointBexar County
What is under Randolph AFB, TexasUnderground column at the center of Randolph AFB: median well 45 ft, middle half 38 to 60 ft.No state layer model here yet0100200300400500ftGround levelMedian well: 45 ftMiddle half38–60 ftMedian well45 ft

Under Randolph AFB, Bexar County

The well and the water are the median of 11 real wells. This atlas does not have a state layer model for this area yet.

Home wells in and around Randolph AFB

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: Randolph AFB and about 2 miles around it

Key figures

Typical depth (middle half)
38 to 60 feet
Median depth
45 feet
Deepest 10% are past
380 feet
Wells used
11
Since 2001
Inside the city limits
1
the rest within 2 miles
All years on file
11
median 45 ft, since 2004
Confidence
Few wells (10 to 29)
What is under Randolph AFB, TexasUnderground column at the center of Randolph AFB: median well 45 ft, middle half 38 to 60 ft.No state layer model here yet0100200300400500ftGround levelMedian well: 45 ftMiddle half38–60 ftMedian well45 ft
The well and the water are the median of 11 real wells. This atlas does not have a state layer model for this area yet.

Which formation do wells in Randolph AFB draw from?

We cannot say yet for Randolph AFB. 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 Bexar County

Depth over time

Too few wells per period in and around Randolph AFB to compare depth over time. Since 2004, 11 home wells have been reported, with a median of 45 feet.

PeriodMedian depth (ft)Wells
2001–2005under 10 wells1
2006–2010under 10 wells2
2011–2015under 10 wells7
2016–2020under 10 wells1

What a well costs in Randolph AFB

At the median depth for Randolph AFB (45 feet), a complete home well would cost roughly $3,500 to $9,000: $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 (38 to 60 feet) the range runs from $3,500 to $10,000. 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 Randolph AFB, Texas?

Only 11 home water wells in and around Randolph AFB, Texas have been reported since 2001, so treat this as a rough guide: the middle half are 38 to 60 feet deep (median 45 ft). One in ten goes past 380 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 Randolph AFB?

At the median depth (45 feet), a complete well would cost roughly $3,500 to $9,000, by TerraFunded's estimate from published Texas driller prices. The real price comes from a licensed driller's quote.

Do I need a permit to drill a well in Randolph AFB?

Randolph AFB is inside the Edwards Aquifer Authority. 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.

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

Sources