Texas Water Well Reports › Grimes County
Grimes County, Texas: well depth, water level & drilling cost
✓ 2,862 TDLR SDR records · verified 2026-10-19
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How deep are wells in Grimes County, Texas?
The median drilled well depth in Grimes County is 300 ft, based on 2,862 wells with recorded depths in the state TDLR SDR database. Half of all wells fall between 227 ft and 385 ft; 90% are shallower than 470 ft. Wells drilled since 2016 have a median depth of 300 ft.
How much does it cost to drill a well in Grimes County?
Applying published per-foot rates to the local median depth of 300 ft: drilling and casing alone typically runs $7,500–$19,500; a complete system including pump, pressure tank, and hookup typically runs $18,000–$30,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Grimes County?
The median static water level is 91 ft below ground surface (middle half of wells: 63 ft–144 ft), from 2,698 measurements.
How much water do wells in Grimes County produce?
The median tested yield is 40 gpm (middle half: 25 gpm–60 gpm), from 2,200 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Grimes 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 Grimes County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Navasota (77868) — 849 wells, median 295 ft
- Anderson (77830) — 549 wells, median 326 ft
- Bedias (77831) — 517 wells, median 307 ft
- Plantersville (77363) — 485 wells, median 262 ft
- Richards (77873) — 322 wells, median 271 ft
- Iola (77861) — 232 wells, median 384 ft
- Shiro (77876) — 54 wells, median 283 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.