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Montana water data · Zip Code in Yellowstone County

ZIP 59002: well depth, groundwater and water rights

What the public record says about water in ZIP code 59002: 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 186 public records from MBMG GWIC, Montana DNRC, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

96

1.2 per sq mi

Median well depth

136 ft

half of wells 70–200 ft

Median static water level

43 ft

82 measurements

Median tested yield

6 gpm

79 pump tests

Well depth

How deep are wells in ZIP 59002?

Of 86 wells with a recorded total depth, the median is 136 feet. Half were drilled between 70 and 200 feet; one in ten went deeper than 283 feet and one in ten found water shallower than 30 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
19%
50–100 ft
14%
100–200 ft
41%
200–300 ft
19%
300–500 ft
6%
500 ft and deeper
2%

Static water level

43 ft

median depth to water at rest · half between 21 and 75 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

6 gpm

median tested yield · half between 4 and 10 gpm

37% of tested wells produced under 5 gallons per minute and 14% 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 59002

10 wells have been completed here since 2016. The newest log on file was completed June 2, 2022. Records run back to 1900.

What the wells are for

  • Stockwater60
  • Domestic45
  • Unused7
  • Irrigation4
  • Wildlife1

How they were drilled

  • Rotary37
  • Unknown17
  • Forward Rotary7
  • Churn6

Drillers filing well logs in ZIP 59002

  • American Drilling & Supply7 since 2016 · 2020
  • Aaqua Drilling Inc4 since 2016 · 2022
  • Unknown15 all-time · 1964
  • A-1 Drilling/billings Drilling3 all-time · 2006
  • Anderson Drilling3 all-time · 1942
  • Billings Drilling3 all-time · 1986
  • Digger Drilling3 all-time · 1981
  • Hunt Drilling3 all-time · 1991

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 59002

Montana DNRC lists 89 water rights with a point of diversion inside this area: 59 groundwater and 30 surface water, 85 of them active. The median priority date is 1973, and the oldest claim dates to 1879.

Types of right

  • Statement Of Claim56
  • Ground Water Certificate27
  • Provisional Permit4
  • Stockwater Permit2

Purposes

  • Stock57
  • Domestic8
  • Wildlife6
  • Domestic; Stock5
  • Irrigation3

DNRC basins

  • 43Q89

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 59002 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.

  • Lance Formation29 wells · 37% · median 150 ft
  • Judith River Formation (of Montana Group)13 wells · 17% · median 125 ft
  • Tullock Member (of Ft Union Fm.)7 wells · 9% · median 132 ft
  • Alluvium (holocene)7 wells · 9% · median 18 ft
  • Fox Hills-hell Creek Aquifer7 wells · 9% · median 204 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 59002

Petroleum releases

0

0 open · 0 resolved

Superfund program sites

0

none on the National Priorities List

Registered tank facilities

1

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