Montana county well data

Sweet Grass County well depths

We analyzed 2,346 well records with recorded depths in Sweet Grass County from the Montana Ground Water Information Center. The median well is 82 feet deep, and most fall between 45 and 160 feet.

2,599
Well records analyzed
2,346
With recorded depth
82 ft
Median depth
45–160 ft
Typical range (25th–75th)
30–286.5 ft
10th–90th percentile
5 ft
Shallowest recorded
1,500 ft
Deepest recorded
20 GPM
Median reported yield

What these numbers mean if you are buying here

A county median is a useful orientation, not a prediction for a specific property. Well depth in Montana is driven by local geology and topographic position, and both change over short distances — particularly at the edges of the intermontane basins, where unconsolidated basin fill gives way to bedrock. Two parcels a mile apart in Sweet Grass County can require very different wells.

The spread here shows that directly. While the median is 82 feet, recorded depths run from 5 to 1,500 feet. That range is why our property reports select comparable wells around the specific parcel and weight them by geology rather than quoting a county average.

The median reported yield in Sweet Grass County is 20 GPM. Bear in mind these are short drilling-test measurements taken at completion, not sustained-capacity tests, so treat them as an indication of what drillers encountered rather than a guarantee of long-term supply.

Static water level — the depth at which water stands before pumping — has a median of 25 feet across 2,226 records in the county. This affects pump setting and operating cost.

We have indexed 6,280 water-right records associated with Sweet Grass County from Montana DNRC. Whether any of them attach to a particular parcel is a property-specific question — Montana publishes no authoritative parcel-to-water-right link, which is why our reports label these as potential associations and link you to the original DNRC abstract.

Drillers filing well logs in Sweet Grass County

  • Birchell Drilling155 in 10 yrs · 2023
  • Thompson Drilling & Pump73 in 10 yrs · 2026
  • Aaqua Drilling Inc24 in 10 yrs · 2026
  • Potts Drilling Inc18 in 10 yrs · 2025
  • Outlaw Drilling & Pump, Llc10 in 10 yrs · 2026
  • A-1 Drilling8 in 10 yrs · 2025
  • Red Tiger Drilling6 in 10 yrs · 2020
  • American Drilling & Supply6 in 10 yrs · 2025

From well logs filed with GWIC — public record, not an endorsement or referral. We have no business relationship with these companies. Verify licensing with the Montana Board of Water Well Contractors before hiring.

Check a specific property

County statistics are context. A property report analyzes the wells around one parcel.

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Source: Montana Bureau of Mines and Geology, Ground Water Information Center (GWIC) and Montana Department of Natural Resources and Conservation (DNRC), Water Rights Bureau. Statistics computed September 26, 2026. Abandoned, plugged, and destroyed wells are excluded, as are depths outside a plausible range. See methodology.