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How deep are water wells in Knox City, Texas?

Home water wells in and around Knox City, Texas are typically 51 to 60 feet deep (median 52 ft, 32 wells reported since 2001). Estimated cost of a complete well at the median depth: $4,000 to $9,500.

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 pointKnox County
What is under Knox City, TexasUnderground column at the center of Knox City: median well 52 ft, middle half 51 to 60 ft, water at 30 ft.No state layer model here yet020406080ftGround levelMedian well: 52 ftWater standing in the well from 30 ftWater level30 ftMiddle half51–60 ftMedian well52 ft

Under Knox City, Knox County

The well and the water are the median of 32 real wells. This atlas does not have a state layer model for this area yet.

Home wells in and around Knox City

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: Knox City and about 2 miles around it

Key figures

Typical depth (middle half)
51 to 60 feet
Median depth
52 feet
Deepest 10% are past
61 feet
Water level (median)
30 feet
31 wells
Yield (median)
35 gpm
31 wells, gallons per minute
Wells used
32
Since 2001
Inside the city limits
13
the rest within 2 miles
All years on file
32
median 52 ft, since 2004
Confidence
Standard (30 or more wells)

When the wells were finished, the water stood a median 30 feet below the surface (31 wells).

What is under Knox City, TexasUnderground column at the center of Knox City: median well 52 ft, middle half 51 to 60 ft, water at 30 ft.No state layer model here yet020406080ftGround levelMedian well: 52 ftWater standing in the well from 30 ftWater level30 ftMiddle half51–60 ftMedian well52 ft
The well and the water are the median of 32 real wells. This atlas does not have a state layer model for this area yet.

Which formation do wells in Knox City draw from?

We cannot say yet for Knox City. 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 Knox County

Depth over time

Too few wells per period in and around Knox City to compare depth over time. Since 2004, 32 home wells have been reported, with a median of 52 feet.

PeriodMedian depth (ft)Wells
2001–2005under 10 wells2
2006–2010under 10 wells2
2011–20155612
2016–2020under 10 wells9
2021–2025under 10 wells6
2026under 10 wells1

What a well costs in Knox City

At the median depth for Knox City (52 feet), a complete home well would cost roughly $4,000 to $9,500: $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 (51 to 60 feet) the range runs from $4,000 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 Knox City, Texas?

Home water wells in and around Knox City, Texas are typically 51 to 60 feet deep (median 52 ft, 32 wells reported since 2001). One in ten goes past 61 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 Knox City?

At the median depth (52 feet), a complete well would cost roughly $4,000 to $9,500, 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 Knox City?

When the wells were finished, the water stood a median 30 feet below the surface (31 wells). The level moves with drought and from one well to the next.

Do I need a permit to drill a well in Knox City?

Knox City is inside the Rolling Plains 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.

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

Sources