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Montana water data · Zip Code in Roosevelt County

ZIP 59201: well depth, groundwater and water rights

What the public record says about water in ZIP code 59201: 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 3,466 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

1,596

1.2 per sq mi

Median well depth

60 ft

half of wells 36–110 ft

Median static water level

25 ft

1,007 measurements

Median tested yield

10 gpm

951 pump tests

Well depth

How deep are wells in ZIP 59201?

Of 1,459 wells with a recorded total depth, the median is 60 feet. Half were drilled between 36 and 110 feet; one in ten went deeper than 205 feet and one in ten found water shallower than 23 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
36%
50–100 ft
33%
100–200 ft
20%
200–300 ft
7%
300–500 ft
4%
500 ft and deeper
1%

Static water level

25 ft

median depth to water at rest · half between 18 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

10 gpm

median tested yield · half between 7 and 20 gpm

11% of tested wells produced under 5 gallons per minute and 31% 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 59201

89 wells have been completed here since 2016, 4 of them in the last twelve months. The newest log on file was completed July 17, 2026. Records run back to 1908.

What the wells are for

  • Domestic733
  • Stockwater651
  • Monitoring202
  • Irrigation49
  • Public Water Supply28

How they were drilled

  • Rotary413
  • Cable121
  • Forward Rotary95
  • Solid Stem Auger50

Drillers filing well logs in ZIP 59201

  • Montana Salinity Control Association28 since 2016 · 2022
  • Agri Industries Inc16 since 2016 · 2023
  • H & H Drilling7 since 2016 · 2021
  • Badger Drilling & Well Service Llc7 since 2016 · 2026
  • S & S Drilling6 since 2016 · 2022
  • Sharp Drilling Inc5 since 2016 · 2020
  • Aaaa Water Well Drilling Inc5 since 2016 · 2017
  • West Central Environmental Consultants4 since 2016 · 2023

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 59201

Montana DNRC lists 1,765 water rights with a point of diversion inside this area: 891 groundwater and 874 surface water, 1,622 of them active. The median priority date is 1958, and the oldest claim dates to 1887.

Types of right

  • Statement Of Claim1,172
  • Ground Water Certificate399
  • Provisional Permit84
  • Stockwater Permit55
  • Exempt Notice24

Purposes

  • Stock1,051
  • Domestic285
  • Irrigation214
  • Domestic; Stock72
  • Wildlife24

DNRC basins

  • 40S1,443
  • 40Q253
  • 40P69

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 59201 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)296 wells · 34% · median 53 ft
  • Fox Hills-hell Creek Aquifer173 wells · 20% · median 194 ft
  • Hell Creek Formation133 wells · 15% · median 134 ft
  • Flaxville Gravels (pliocene-miocene)82 wells · 9% · median 40 ft
  • Fort Union Formation54 wells · 6% · median 100 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 59201

Petroleum releases

24

3 open · 21 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

81

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 2013. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.