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How deep are water wells in Hallettsville, Texas?

Home water wells in and around Hallettsville, Texas are typically 150 to 235 feet deep (median 182 ft, 79 wells drilled in the last 10 years). Most draw from the Jasper and Catahoula aquifers, with the Burkeville (76%), and 24% draw from the Evangeline Aquifer, according to the state's northern Gulf Coast Aquifer model (TWDB). New wells run about 15% deeper than 20 years ago (median 163 ft in 2003 to 2007, 188 ft in 2021 to 2025). 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 pointLavaca County
What is under Hallettsville, TexasUnderground column at the center of Hallettsville: median well 182 ft, middle half 150 to 235 ft, water at 75 ft, and the layers of the state's model with their thickness.Jasper, Catahoula and Burkeville: 0 to 2,096 ftJasper, Catahoula and…continues to 2,096 ft0100200300ftGround level · 244 ft above sea levelMedian well: 182 ftWater standing in the well from 75 ftWater level75 ftMiddle half150–235 ftMedian well182 ft

Under Hallettsville, Lavaca County

Layers at the center of Hallettsville from TWDB's northern Gulf Coast Aquifer model (cells of about 0.62 mile (1 km)), at true depth scale. The well and the water are the median of 79 real wells.

Home wells in and around Hallettsville

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: Hallettsville and about 2 miles around it

Key figures

Typical depth (middle half)
150 to 235 feet
Median depth
182 feet
Deepest 10% are past
259 feet
Water level (median)
75 feet
78 wells
Yield (median)
45 gpm
77 wells, gallons per minute
Wells used
79
In the last 10 years
Inside the city limits
1
the rest within 2 miles
All years on file
228
median 170 ft, since 2002
Confidence
Standard (30 or more wells)

When the wells were finished, the water stood a median 75 feet below the surface (78 wells), well above the bottom: the typical well holds about 107 feet of water.

What is under Hallettsville, TexasUnderground column at the center of Hallettsville: median well 182 ft, middle half 150 to 235 ft, water at 75 ft, and the layers of the state's model with their thickness.Jasper, Catahoula and Burkeville: 0 to 2,096 ftJasper, Catahoula and…continues to 2,096 ft0100200300ftGround level · 244 ft above sea levelMedian well: 182 ftWater standing in the well from 75 ftWater level75 ftMiddle half150–235 ftMedian well182 ft
Layers at the center of Hallettsville from TWDB's northern Gulf Coast Aquifer model (cells of about 0.62 mile (1 km)), at true depth scale. The well and the water are the median of 79 real wells.

Which formation do wells in Hallettsville draw from?

Most draw from the Jasper and Catahoula aquifers, with the Burkeville (76%), and 24% draw from the Evangeline Aquifer, according to the state's northern Gulf Coast Aquifer model (TWDB).

Layer (state's model)ShareWellsTypical depth (ft)
Jasper, Catahoula and Burkeville76%60162–246
Evangeline24%19132–175

For 100% 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 Hallettsville

From the state's model, at 244 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)
Jasper, Catahoula and Burkevillesand, sandstone, clay and volcanic tuff02,0962,096

Depth over time

New home wells in and around Hallettsville are deeper than 20 years ago: the median went from 163 feet (2003 to 2007) to 188 feet (2021 to 2025), 15% more. Deeper wells do not always mean the water dropped: a driller may be going for another layer, better water or more reserve.

PeriodMedian depth (ft)Wells
2001–200517030
2006–201016457
2011–201519054
2016–202016438
2021–202518844
2026under 10 wells5

What a well costs in Hallettsville

At the median depth for Hallettsville (182 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 (150 to 235 feet) the range runs from $6,500 to $20,500. 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 Hallettsville, Texas?

Home water wells in and around Hallettsville, Texas are typically 150 to 235 feet deep (median 182 ft, 79 wells drilled in the last 10 years). One in ten goes past 259 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 Hallettsville draw from?

Most draw from the Jasper and Catahoula aquifers, with the Burkeville (76%), and 24% draw from the Evangeline Aquifer, according to the state's northern Gulf Coast Aquifer 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 Hallettsville?

At the median depth (182 feet), a complete well would cost roughly $7,000 to $17,500, 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 Hallettsville?

When the wells were finished, the water stood a median 75 feet below the surface (78 wells), well above the bottom: the typical well holds about 107 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 Hallettsville?

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

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 100% 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 14,333 wells in the area of the state's northern Gulf Coast Aquifer model (Houston and Southeast Texas) where the State of Texas recorded the aquifer, the formation our method says the well draws from (as grouped on these pages) is the one the state recorded in about 83% of them, and that formation or the one next to it in at least 99%; of the 3,578 of those wells that the state records in the Evangeline, it names the Evangeline for about 51% and the Chicot for most of the rest.

  • The layers come from the Texas Water Development Board's northern Gulf Coast Aquifer model, with cells of about 0.62 mile (1 km). It is a regional model, not a survey of any lot.
  • The state's model has cells of about 3,277 ft (1 km, 0.62 mile); we read it on a grid of about 0.6 by 0.7 miles. It is not a survey of any lot, so we give ranges.
  • Figures go by three groups: Chicot, Evangeline, and Jasper and Catahoula with the Burkeville. The state's records cannot tell the Burkeville, the Jasper and the Catahoula apart at a well (alone, the Burkeville matched 33% and the Catahoula 50%), so they are never named one by one as the formation of a well or a place.
  • The line between the Chicot and the Evangeline is drawn differently by different studies. The state's records put about half of their Evangeline wells in what the model draws as the Chicot, mostly deeper wells in Harris, Montgomery, Waller, Liberty and Austin counties. Where both appear, the split is approximate.
  • "Near or below the base" means the well ends near or below the base of the Gulf Coast Aquifer (under the Catahoula: Jackson Group, Yegua and older). It is 1.3% of home wells; half of them end within about 85 ft of the base. That is not an error: the model simply ends there.
  • The model's top layer is a uniform 49 ft slab for the water table zone, not a rock unit; we merge it into the unit beneath. The model also covers Colorado, Lavaca, Fayette, Wharton and Matagorda counties (outside Groundwater Management Area 14), with the same framework. Texas part only.
  • 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/hallettsville-tx. License CC BY 4.0. https://doi.org/10.5281/zenodo.24126380.

Sources