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Montana water data · Zip Code in Silver Bow County

ZIP 59743: well depth, groundwater and water rights

What the public record says about water in ZIP code 59743: 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 September 2026 · Based on 729 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

236

1.1 per sq mi

Median well depth

43 ft

half of wells 34–64 ft

Median static water level

12 ft

222 measurements

Median tested yield

25 gpm

203 pump tests

Well depth

How deep are wells in ZIP 59743?

Of 227 wells with a recorded total depth, the median is 43 feet. Half were drilled between 34 and 64 feet; one in ten went deeper than 144 feet and one in ten found water shallower than 29 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
57%
50–100 ft
26%
100–200 ft
11%
200–300 ft
4%
300–500 ft
1%
500 ft and deeper
1%

Static water level

12 ft

median depth to water at rest · half between 8 and 27 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

25 gpm

median tested yield · half between 19 and 30 gpm

3% of tested wells produced under 5 gallons per minute and 75% 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 59743

41 wells have been completed here since 2016, 2 of them in the last twelve months. The newest log on file was completed July 20, 2026. Records run back to 1865.

What the wells are for

  • Domestic157
  • Stockwater56
  • Irrigation9
  • Public Water Supply7
  • Monitoring6

How they were drilled

  • Rotary48
  • Cable44
  • Dual Rotary20
  • Rotary Dr11

Drillers filing well logs in ZIP 59743

  • Okeefe Drilling Co30 since 2016 · 2025
  • Graham Drilling Inc9 since 2016 · 2024
  • Ak Drilling Inc1 since 2016 · 2024
  • Ak Drilling Inc.1 since 2016 · 2026
  • Dynamite Drilling4 all-time · 2006
  • Aqua4 all-time · 1985
  • Haz Tech Drilling Inc4 all-time · 2015
  • Unknown4 all-time · 1960

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 59743

Montana DNRC lists 489 water rights with a point of diversion inside this area: 195 groundwater and 294 surface water, 432 of them active. The median priority date is 1926, and the oldest claim dates to 1858.

Types of right

  • Statement Of Claim328
  • Ground Water Certificate138
  • Water Reservation10
  • Provisional Permit9
  • Exempt Notice4

Purposes

  • Stock206
  • Irrigation122
  • Domestic52
  • Domestic; Lawn And Garden25
  • Wildlife18

DNRC basins

  • 41D489

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 59743 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.

  • Alluvium (quaternary)56 wells · 56% · median 35 ft
  • Alluvium (holocene)22 wells · 22% · median 38 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 59743

Petroleum releases

2

0 open · 2 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

2

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 1999. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.