Water wells in the Coke County Underground Water Conservation District

Q: What does a groundwater conservation district do?

In Texas, districts are the local authority over groundwater: they can require registration or permits for new wells, set spacing from other wells and property lines, and limit pumping. Each district writes its own rules, so ask the Coke County Underground Water Conservation District before drilling inside it.

Home water wells inside the Coke County Underground Water Conservation District (Coke County, Texas) are typically 140 to 220 feet deep (median 180 ft, 100 wells drilled in the last 10 years). Drillers reported 7 new home wells in 2025, less than half the peak of 23 in 2004. Estimated cost of a complete well at the median depth: $7,000 to $17,500.

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 point

Under the center of the Coke County UWCD

District boundary from TWDB's file current as of November 2019. Later changes are not shown.

Home wells in and around the Coke County UWCD

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+

Dark line: the district boundary (TWDB, 2019)

Key figures

Typical depth (middle half): 140 to 220 feet
Median depth: 180 feet
Deepest 10% are past: 261 feet
Water level (median): 80 feet; 68 wells
Yield (median): 15 gpm; 72 wells, gallons per minute
Wells used: 100; In the last 10 years
Counties: 1
All years on file: 329; median 180 ft, since 2002
Confidence: Standard (30 or more wells)

When the wells were finished, the water stood a median 80 feet below the surface (68 wells), well above the bottom: the typical well holds about 100 feet of water.

District boundary from TWDB's file current as of November 2019. Later changes are not shown.

New home wells per year

Drillers reported 7 new home wells in 2025, less than half the peak of 23 in 2004.

Domestic wells with a depth, by the year they were finished. 2026 is still in progress.

Show the data table

Year	Wells
2002	5
2003	15
2004	23
2005	16
2006	21
2007	8
2008	15
2009	13
2010	22
2011	23
2012	13
2013	18
2014	14
2015	12
2016	13
2017	13
2018	6
2019	13
2020	23
2021	6
2022	4
2023	10
2024	8
2025	7
2026	8

Places with the most wells in the district

Place	Median depth (ft)	Middle half (ft)	Wells	Main layer
Robert Lee	190	115–245	12	—

Counties

Coke County

Depth over time

Home well depth in the district has not changed meaningfully in 20 years: the median was 175 feet in 2003 to 2007 and 200 feet in 2021 to 2025 (a difference under 10% or within the margin of error).

Period	Median depth (ft)	Wells
2001–2005	170	59
2006–2010	160	79
2011–2015	193	80
2016–2020	178	68
2021–2025	200	35
2026	under 10 wells	8

Embed this on your site

Districts, counties, reporters and agents can embed this summary, which updates itself every day. Copy and paste this code:

<iframe src="https://terrafunded.com/embed/wells/district/coke-county-underground-water-conservation-district" title="Water wells: Coke County Underground Water Conservation District" loading="lazy" style="width:100%;max-width:560px;height:430px;border:0"></iframe>

Or this one line, which keeps the height right by itself:

<script async src="https://terrafunded.com/vendor/subsurface-embed-v1.js" data-district="coke-county-underground-water-conservation-district"></script>

Free, under CC BY 4.0. We only ask that you keep the source link. Preview the widget

Common questions

How deep are wells in the Coke County UWCD?

Home water wells inside the Coke County Underground Water Conservation District (Coke County, Texas) are typically 140 to 220 feet deep (median 180 ft, 100 wells drilled in the last 10 years).

What does a groundwater conservation district do?

In Texas, districts are the local authority over groundwater: they can require registration or permits for new wells, set spacing from other wells and property lines, and limit pumping. Each district writes its own rules, so ask the Coke County Underground Water Conservation District before drilling inside it.

What a well costs here

At the median depth for the district (180 feet), a complete home well would cost roughly $7,000 to $17,500: $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 (140 to 220 feet) the range runs from $6,000 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.

How these numbers are made

We count new and replacement domestic (home) wells whose coordinates fall inside the district boundary. 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/districts/coke-county-underground-water-conservation-district. License CC BY 4.0. https://doi.org/10.5281/zenodo.24126380.