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Montana water data · Zip Code in Madison County

ZIP 59735: well depth, groundwater and water rights

What the public record says about water in ZIP code 59735: 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 945 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

292

2.6 per sq mi

Median well depth

100 ft

half of wells 60–178 ft

Median static water level

25 ft

271 measurements

Median tested yield

21 gpm

276 pump tests

Well depth

How deep are wells in ZIP 59735?

Of 288 wells with a recorded total depth, the median is 100 feet. Half were drilled between 60 and 178 feet; one in ten went deeper than 260 feet and one in ten found water shallower than 44 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
14%
50–100 ft
36%
100–200 ft
29%
200–300 ft
16%
300–500 ft
5%
500 ft and deeper
1%

Static water level

25 ft

median depth to water at rest · half between 12 and 60 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

21 gpm

median tested yield · half between 15 and 30 gpm

3% of tested wells produced under 5 gallons per minute and 64% 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 59735

62 wells have been completed here since 2016, 3 of them in the last twelve months. The newest log on file was completed May 27, 2026. Records run back to 1866.

What the wells are for

  • Domestic234
  • Stockwater50
  • Irrigation14
  • Monitoring9
  • Public Water Supply6

How they were drilled

  • Rotary153
  • Cable42
  • Unknown23
  • Churn14

Drillers filing well logs in ZIP 59735

  • Red Tiger Drilling18 since 2016 · 2025
  • Diamond M Drilling Inc9 since 2016 · 2025
  • Van Dyken Drilling Inc8 since 2016 · 2024
  • Graham Drilling Inc7 since 2016 · 2025
  • A-10 Drilling6 since 2016 · 2021
  • Potts Drilling Inc5 since 2016 · 2025
  • Western Water Wells3 since 2016 · 2022
  • Bridger Drilling Inc1 since 2016 · 2018

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 59735

Montana DNRC lists 646 water rights with a point of diversion inside this area: 291 groundwater and 355 surface water, 559 of them active. The median priority date is 1925, and the oldest claim dates to 1864.

Types of right

  • Statement Of Claim432
  • Ground Water Certificate189
  • Exempt Notice9
  • Provisional Permit7
  • Irrigation District6

Purposes

  • Irrigation203
  • Stock189
  • Domestic106
  • Domestic; Lawn And Garden40
  • Mining23

DNRC basins

  • 41G645
  • 41F1

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 59735 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.

  • Cenozoic Undifferentiated19 wells · 28% · median 85 ft
  • Sediments (tertiary)15 wells · 22% · median 75 ft
  • Gneiss And Schist (early Proterozoic Or Archean)15 wells · 22% · median 102 ft
  • Sand And Gravel (tertiary)6 wells · 9% · median 110 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 59735

Petroleum releases

3

1 open · 2 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

4

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 2000. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.