Texas Water Well Reports › Williamson County
Williamson County, Texas: well depth, water level & drilling cost
✓ 3,419 TDLR SDR records · verified 2026-10-19
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How deep are wells in Williamson County, Texas?
The median drilled well depth in Williamson County is 562 ft, based on 3,414 wells with recorded depths in the state TDLR SDR database. Half of all wells fall between 464 ft and 742 ft; 90% are shallower than 860 ft. Wells drilled since 2016 have a median depth of 580 ft.
How much does it cost to drill a well in Williamson County?
Applying published per-foot rates to the local median depth of 580 ft: drilling and casing alone typically runs $14,500–$37,700; a complete system including pump, pressure tank, and hookup typically runs $34,800–$58,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Williamson County?
The median static water level is 350 ft below ground surface (middle half of wells: 211 ft–433 ft), from 2,770 measurements.
How much water do wells in Williamson County produce?
The median tested yield is 30 gpm (middle half: 20 gpm–50 gpm), from 2,883 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Williamson County?
Companies by number of water wells completed in this county since 2016, per filed driller reports (SDR).
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Well records by ZIP code in Williamson County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Liberty Hill (78642) — 968 wells, median 520 ft
- Leander (78641) — 803 wells, median 590 ft
- Florence (76527) — 444 wells, median 720 ft
- Georgetown (78626) — 321 wells, median 440 ft
- Georgetown (78628) — 312 wells, median 765 ft
- Jarrell (76537) — 225 wells, median 660 ft
- Georgetown (78633) — 175 wells, median 760 ft
- Taylor (76574) — 131 wells, median 37 ft
- Round Rock (78664) — 106 wells, median 490 ft
- Cedar Park (78613) — 99 wells, median 810 ft
- Granger (76530) — 76 wells, median 666 ft
- Hutto (78634) — 70 wells, median 673 ft
Method: medians computed from TDLR SDR records (water-supply wells only (domestic, irrigation, stock, public supply, industrial) — monitoring, environmental borings, test holes, injection and geothermal excluded; depths 0–5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.