Montana WaterReport
Check a property

Montana water data · Zip Code in Big Horn County

ZIP 59031: well depth, groundwater and water rights

What the public record says about water in ZIP code 59031: 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 252 public records from MBMG GWIC, Montana DNRC, Montana DEQ, EPA UST Finder, US Census (ZIP Code Tabulation Area)

Wells on record

87

0.8 per sq mi

Median well depth

65 ft

half of wells 35–100 ft

Median static water level

20 ft

61 measurements

Median tested yield

15 gpm

65 pump tests

Well depth

How deep are wells in ZIP 59031?

Of 83 wells with a recorded total depth, the median is 65 feet. Half were drilled between 35 and 100 feet; one in ten went deeper than 175 feet and one in ten found water shallower than 24 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
35%
100–200 ft
19%
200–300 ft
4%
300–500 ft
2%
500 ft and deeper
4%

Static water level

20 ft

median depth to water at rest · half between 11 and 45 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

15 gpm

median tested yield · half between 10 and 30 gpm

6% of tested wells produced under 5 gallons per minute and 43% 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 59031

10 wells have been completed here since 2016. The newest log on file was completed August 14, 2025. Records run back to 1930.

What the wells are for

  • Domestic43
  • Stockwater38
  • Unused14
  • Irrigation4

How they were drilled

  • Rotary27
  • Unknown17
  • Cable17
  • Drilled3

Drillers filing well logs in ZIP 59031

  • American Drilling & Supply4 since 2016 · 2021
  • Gary's Drilling Inc.2 since 2016 · 2025
  • Unknown20 all-time · 1964
  • Big Horn Drilling11 all-time · 1988
  • H & H Drilling6 all-time · 2006
  • Little Horn5 all-time · 1979
  • Corveau Drilling4 all-time · 2002
  • Weber3 all-time · 1973

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 59031

Montana DNRC lists 162 water rights with a point of diversion inside this area: 76 groundwater and 86 surface water, 116 of them active. The median priority date is 1940, and the oldest claim dates to 1868.

Types of right

  • Statement Of Claim77
  • Reserved Claim56
  • Ground Water Certificate22
  • Compact4
  • Exempt Notice2

Purposes

  • Stock105
  • Domestic20
  • Irrigation16
  • Multiple Domestic7
  • Instream Flow4

DNRC basins

  • 43O158
  • 43P2
  • 43D1
  • 43Q1

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 59031 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)13 wells · 46% · median 34 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 59031

Petroleum releases

1

0 open · 1 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 1995. A property report screens the sites within a quarter, half and one mile of a specific parcel and links the agency records.