Data Center Registry
MiningStore Union Township Site
Union, Hardin County, Iowa · All 4 MiningStore sites
MiningStore Union Township Site is a permitted crypto mining site in Union, Iowa (Hardin County), operated by MiningStore. The public record puts it at 5 MW planned. It has documented support and documented opposition on record.
Every line on this page traces to a public source listed at the bottom. Where a figure was looked for and not found, the row says so. A blank is never a zero.
Facility record
Permitted
- Operator
- MiningStore
- Facility type
- Crypto mining
- Location
- Union, Hardin County, IA
- Coordinates
- 42.2453, -93.0788 (approximate)
- Power capacity
- 5 MW planned
- Land
- Not established from a public source
- Investment
- Not established from a public source
- Announced
- Not established from a public source
- Utility
- Midland Power Cooperative
- Power source
- Grid
- Cooling
- Not established from a public source
- Water use
- Not established from a public source
- Jobs
- Not established from a public source
- Public subsidy
- Not established from a public source
- Community reception
- Mixed reception
- Source confidence
- Reported by at least one credible outlet or filing
Timeline from the record
Newest first. Record entries come from the filings and reports the registry cites. Coverage entries are headlines from publisher feeds we monitor daily, linked to the outlet; last checked September 14, 2026.
- January 24, 2023PermittedHardin County Zoning Adjustment Board signed a conditional use permit for the site. Source: The Gazette
Opposition and litigation at this site
Partly. Both documented support and documented opposition to MiningStore Union Township Site in Union, Hardin County, Iowa appear in the record, with no clear majority position. Approved by conditional use permit rather than the rezoning MiningStore originally requested.
How the community has taken it
Reception is a sourced signal, not an editorial judgment: mixed reception means documented support and documented opposition both exist with no clear majority position on record.
Approved by conditional use permit rather than the rezoning MiningStore originally requested. Permit conditions: noise-buffering material on the site fences, a $75,000 surety bond for future decommissioning, and new permits at each lease renewal.
Power and water
Sited next to a Midland Power Cooperative electrical substation. The Gazette reported Midland Power Cooperative gets at least 46 percent of its power from coal, per the co-op's own website.
Notes on the record
The second of two small crypto mining sites approved by the Hardin County Zoning Adjustment Board on 2023-01-24, in Union Township. Three modular container structures next to a Midland Power Cooperative substation, drawing 5 MW. Whether the site was subsequently built and energised is not established by the cited source, status reflects the permit, not confirmed operation.
What the record does not establish, and the document that would
In every fight on our tracker the decisive fact came out of a public records request. These are the requests for this site.
- Cooling method and water use
- Tax abatements or other public subsidy
- Permanent jobs promised
- Land area
Which document closes each gap
- Cooling method and water use
- The water service agreement, any groundwater appropriation permit, and the mechanical narrative in the site plan.
- Tax abatements or other public subsidy
- The abatement, PILOT, or development agreement approved by the county, city, or development authority, and the state's data center sales tax exemption certificate if one was issued.
- Permanent jobs promised
- The economic development application or incentive agreement, which usually states a job commitment and a clawback.
- Land area
- The rezoning application, the plat, or the deed recorded with the county.
Have one of these documents? Send it to us and we will add it to the record with attribution.
Other sites within 30 miles
Distances are between recorded coordinates, many of which are a city or county centroid, so treat them as approximate. Cumulative load on one utility and one aquifer is the question a planning commission rarely asks.
- MiningStore Eldora Township Site · Eldora · MiningStore8 mi · Permitted · 5 MW · Mixed reception
- MiningStore Grundy Center Facility · Grundy Center · MiningStore12 mi · Cancelled
Questions people ask about this site
Is there opposition to the MiningStore Union Township Site data center in Union?
Partly. Both documented support and documented opposition to MiningStore Union Township Site in Union, Hardin County, Iowa appear in the record, with no clear majority position. Approved by conditional use permit rather than the rezoning MiningStore originally requested.
Has anyone filed a lawsuit over the MiningStore Union Township Site data center?
No lawsuit over MiningStore Union Township Site appears in the record we track as of August 14, 2026. Residents most often reach a lawyer over water supply, well drawdown, noise from cooling plant, property value, or a rezoning approved without the notice the ordinance required. If any of that is happening near this site, it is worth a review whether or not a case has been filed yet.
How much water does MiningStore Union Township Site use?
No water withdrawal figure for MiningStore Union Township Site is on record here. Water use is rarely published voluntarily; it usually surfaces through a utility service agreement or a state withdrawal permit, both of which are public records. We leave the number blank rather than estimate one.
Who operates MiningStore Union Township Site, and how big is it?
MiningStore is the operator on record. We hold 4 sites for that company across the registry. Capacity on record is 5 MW.
How to cite this page
SueDataCenters.org Data Center Registry, "MiningStore Union Township Site," updated August 14, 2026, https://suedatacenters.org/data-centers/miningstore-union-township-hardin-ia.
Facility data from Compute Atlas (E. Kubiak), version 1.32.0 (September 7, 2026), licensed CC BY 4.0, record https://www.compute-atlas.com/facilities/miningstore-union-township-hardin-ia, retrieved September 14, 2026.
Corrections with a public source are welcome at the Compute Atlas record or through our contact page. The whole registry is available as CSV and JSON under CC BY 4.0.
Sources for this record
As compiled and cited by Compute Atlas, with our own reporting appended. Archived links are used where the original has moved.
- 1.Hardin County approves two crypto mining sites · The Gazette · retrieved August 14, 2026
- 2.MiningStore, 62.5 MW of bitcoin mining in Iowa (eleven Iowa facilities, locations unnamed) · MiningStore · retrieved August 14, 2026
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