How deep are water wells in Franklin County, Texas?

Half of the home water wells drilled in Franklin County since 2001 are between 322 and 503 feet deep. The median is 418 feet, based on 50 driller reports filed with the state. Drillers measured the water standing a median 120 feet below the surface (41 wells). That is deeper than the Texas median of 250 feet.

Updated every day from Texas Water Development Board driller reports. Last update: November 10, 2026, using the state file of November 9, 2026. 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.

Key figures

Typical depth (middle half)
322 to 503 ft
Median depth
418 feet
Deepest 10% are past
542 feet
Water level (median)
120 feet (41 wells)
Yield (median)
40 gallons per minute (7% pump-tested)
Wells used
50
Period
Since 2001
Latest report
February 20, 2026
Depth rank
54 of 245 (1 = deepest)
Confidence
Standard

How deep the wells are

Number of home wells by depth, last 10 years (or since 2001 where wells are few).

Depth (ft)Wells
100 to 1501
150 to 2003
200 to 2502
250 to 3003
300 to 35010
350 to 4002
400 to 4509
450 to 5004
500 to 55011
600 to 6502
650 to 7003

Are wells in Franklin County getting deeper?

Franklin County does not have enough domestic wells in both 2003 to 2007 and 2021 to 2025 (at least 30 in each) to compare. Read the 20-year study.

Aquifers under the county

The Texas Water Development Board maps the Carrizo-Wilcox, a major aquifer, at the surface (outcrop) across 50% of the county.

What a well costs in Franklin County

At the median depth for Franklin County (418 feet), a complete home well (drilling, casing, pump, pressure tank and hookup at the well) would cost roughly $13,000 to $31,500, by TerraFunded's estimate from published Texas prices. Trenching and the line to the house are extra. Get quotes from at least two licensed drillers.

Neighboring counties

Common questions

How deep do I need to drill a well in Franklin County?

The middle half of home wells drilled there are 322 to 503 feet deep; one in ten goes past 542 feet. The depth a given tract needs depends on where it is and what layers the driller hits.

How much does a water well cost in Franklin County?

At the median depth (418 feet), a complete well would cost roughly $13,000 to $31,500 by TerraFunded's estimate from published Texas driller prices ($25 to $60 per foot plus pump and equipment). The real price comes from a driller's quote.

How much water does a well produce in Franklin County?

Drillers reported a median of 40 gallons per minute (44 wells). Only 7% of those figures come from a pump test; the rest are the driller's estimate, so treat them as a guide.

Are wells in Franklin County getting deeper?

Franklin County does not have enough domestic wells in both 2003 to 2007 and 2021 to 2025 (at least 30 in each) to compare.

How do I see the well report for a property or a neighbor's well?

Every well drilled in Texas since 2001 has a public driller's report. On this page's map, tap a well to open its official report on the state's site, or look it up by location in the TWDB viewer.

How to read these numbers

Figures cover new and replacement domestic (home) wells, from the reports licensed drillers file with the state. Read the full methodology. Download the county table (CSV).

How to cite: TerraFunded Texas Well Atlas, from Texas Water Development Board driller reports (data as of November 9, 2026). https://terrafunded.com/wells

Sources

Land for sale in Franklin County

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