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Montana water data · Zip Code in Gallatin County

ZIP 59741: well depth, groundwater and water rights

What the public record says about water in ZIP code 59741: how deep wells go, where the water table sits, what wells produce, which water rights are on file, and which documented environmental sites are nearby. Area statistics orient you; a property report analyzes the records around one specific parcel.

Updated November 2026 · Based on 3,036 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

1,487

9 per sq mi

Median well depth

102 ft

half of wells 60–220 ft

Median static water level

40 ft

1,359 measurements

Median tested yield

34 gpm

1,320 pump tests

Well depth

How deep are wells in ZIP 59741?

Of 1,427 wells with a recorded total depth, the median is 102 feet. Half were drilled between 60 and 220 feet; one in ten went deeper than 411 feet and one in ten found water shallower than 39 feet. Depth is set by local geology and position on the landscape, both of which change over short distances, so the spread matters as much as the median.

under 50 ft
17%
50–100 ft
29%
100–200 ft
26%
200–300 ft
10%
300–500 ft
11%
500 ft and deeper
7%

Static water level

40 ft

median depth to water at rest · half between 15 and 110 ft

The static level is how far below ground the water stands before pumping, measured by the driller at completion. It affects pump setting and operating cost, and it moves with season and with neighbouring use.

Well yield

34 gpm

median tested yield · half between 20 and 60 gpm

2% of tested wells produced under 5 gallons per minute and 81% produced 20 or more. These are short completion tests, not sustained-capacity tests; a household typically needs 3 to 5 gpm with storage.

Drilling activity

Recent well drilling in ZIP 59741

251 wells have been completed here since 2016, 33 of them in the last twelve months. The newest log on file was completed September 15, 2026. Records run back to 1866.

What the wells are for

  • Domestic1,110
  • Stockwater268
  • Irrigation113
  • Monitoring113
  • Public Water Supply35

How they were drilled

  • Rotary853
  • Cable204
  • Forward Rotary34
  • Dual Rotary24

Drillers filing well logs in ZIP 59741

  • Van Dyken Drilling Inc75 since 2016 · 2026
  • Bridger Drilling Inc45 since 2016 · 2026
  • Potts Drilling Inc39 since 2016 · 2026
  • Red Tiger Drilling32 since 2016 · 2026
  • Aaqua Drilling Inc12 since 2016 · 2026
  • Diamond M Drilling Inc10 since 2016 · 2026
  • Okeefe Drilling Co9 since 2016 · 2022
  • Excel Pump And Well Inc.9 since 2016 · 2025

Ranked by well logs filed with GWIC, public record only. Not an endorsement, a referral or a paid listing; we have no business relationship with these companies. Verify licensing with the Montana Board of Water Well Contractors before hiring.

Water rights

Water rights on file in ZIP 59741

Montana DNRC lists 1,517 water rights with a point of diversion inside this area: 1,238 groundwater and 279 surface water, 1,389 of them active. The median priority date is 1985, and the oldest claim dates to 1863.

Types of right

  • Ground Water Certificate916
  • Statement Of Claim485
  • Provisional Permit70
  • Exempt Notice40
  • Water Reservation5

Purposes

  • Domestic404
  • Stock242
  • Irrigation185
  • Domestic; Lawn And Garden170
  • Domestic; Stock75

DNRC basins

  • 41H1,475
  • 41F42

Area totals describe the neighbourhood, not any one parcel. Montana publishes no authoritative link between a parcel and a water right; whether a right attaches to a specific property is a property-level question that our reports answer with the DNRC abstract linked.

Aquifers and geology

What wells in ZIP 59741 draw from

Drillers record the aquifer a well is completed in. The units below account for the wells here that carry an aquifer assignment; the median depth beside each is for wells completed in that unit.

  • Sediments (tertiary)64 wells · 32% · median 222 ft
  • Gneiss And Schist (early Proterozoic Or Archean)41 wells · 20% · median 380 ft
  • Cenozoic Undifferentiated28 wells · 14% · median 88 ft
  • Sand And Gravel (tertiary)11 wells · 5% · median 101 ft
  • Alluvium (holocene)11 wells · 5% · median 60 ft

Aquifer assignments are the driller's, recorded at completion, and many older logs carry none. Absence of an assignment is not evidence about the geology.

Environmental groundwater screening

Documented environmental sites in ZIP 59741

Petroleum releases

11

0 open · 11 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

21

underground storage tanks, current and historical

A documented release or site in the area is not evidence that any particular well is affected. Whether a release reaches a well depends on groundwater flow direction, geology, well depth and construction, the extent of the plume and the cleanup performed. The most recent release reported here dates to 1998. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.