Data Center Lawsuits in 2026, by the Numbers: Who Is Suing, Over What, and What It Has Cost So Far

Every entry on our lawsuit tracker is sourced to court records, government publications, or named news outlets, and disputes that never became lawsuits are labeled as such. Here is the full set, counted by status as of September 2, 2026:

Status	Entries	Examples
Active litigation	16	Microsoft Fairwater noise class action; NAACP v. xAI; Meta Newton County wells; Southaven turbine noise class; Joliet, Grayslake, Stokes County, Coweta, Festus, St. Louis, Warrenton, Port Washington rezoning and permit cases; Edgerton petition suit; Louisa County wells; Dowagiac noise class; Granbury noise suits
Settled	3	Amazon Oregon nitrate ($20.5 million); Saline Township consent judgment; The Dalles water records
Dismissed	3	Bessemer Project Marvel; Pima County Project Blue; Vineland noise class (voluntary, without prejudice)
Plaintiff win, concluded	1	Prince William Digital Gateway: rezonings voided, final appeal withdrawn July 2, 2026, project terminated
Regulatory	1	Ohio data center tariff, at the Ohio Supreme Court
Dispute, no suit filed	1	Great Oak, Virginia noise (resolved through ordinance pressure)
Total	25

Fourteen of the 25 were filed in 2026: Stokes County (March 12), NAACP v. xAI (April 14), Festus (April), Coweta (May 5), Joliet (May 18), Dowagiac and Vineland (both May 26), Southaven (June 8), Microsoft Fairwater (July), Grayslake (July 31), Edgerton (August 14), St. Louis (August 28), the Meta Newton County suit (late August), and the Louisa County suit against Amazon. Our tracker is not exhaustive; it covers the cases with the most significance for residents, and we add entries as filings are confirmed.

The headline finding is that most data center litigation is not about the data center. It is about the meeting.

Theory	Entries	What the cases attack
Land use and process	13	Rezonings, special and conditional use permits, annexation agreements, open meetings and sunshine law violations, defective public notice, and one citizen petition
Noise	6	Cooling systems, generators, and gas turbines; four proposed classes plus the Granbury suits and the Great Oak dispute
Water	4	Well contamination from construction (Georgia, Virginia), nitrate contamination from wastewater (Oregon), and public records on water use (The Dalles)
Air	1	Clean Air Act citizen suit over unpermitted turbines (NAACP v. xAI)
Electricity rates	1	Ohio's data center tariff, at the Ohio Supreme Court

Procedure is the winning theory so far. The one concluded plaintiff victory, the Digital Gateway, turned on a defective public notice, not on any environmental finding. The Bessemer case forced a do-over even though it was dismissed. The Joliet and Grayslake complaints are built on notices that named a project code rather than a data center, and on hearings measured in seconds. The Saline Township case went the other direction: a developer used an exclusionary zoning theory to override a township's denial. Either way, the record of the meeting decides the case.

Noise is the growth category. Six entries today, four of them filed in a nine week window between May 26 and July 2026. Defense firms describe the pattern as a coordinated plaintiffs' bar campaign using a replicable complaint template across jurisdictions, and the filings support that reading: the same firm filed the Dowagiac and Vineland cases on the same day with the same trio of private nuisance, public nuisance, and negligence claims.

The 2026 noise cases put figures on the record that residents everywhere can now measure themselves against.

Case	Class radius	Class size	Alleged noise	Local limit cited	Source
Vineland, NJ (Nebius / DataOne)	About 1 mile	About 1,013 households	48 to 60 dBA	50 dB overnight (county)	Diesel generators and cooling equipment
Dowagiac, MI (Alliance Cloud)	About 1 mile	About 1,300 properties	50 to 62 dB, constant	65 dBA day, 55 dBA night (city)	30 MW computing and mining facility
Southaven, MS (xAI / SpaceX)	Near the site	More than 10,000	Above 70 dBA at property lines	City noise ordinance	57 gas turbines
Mount Pleasant, WI (Microsoft)	1.5 miles	More than 1,000 households	Tonal hum, acknowledged by Microsoft	Not specified	Cooling fans, generators, HVAC

Two observations. First, the radius is converging on one mile, which is close enough that exposure is plausibly shared and far enough to include hundreds or thousands of households. Second, the operators alleged to be over the local limit are the ones facing negligence per se and ordinance-based claims. A decibel reading at your property line, compared against the number in your local code, is the single most useful fact a data center neighbor can collect. Our noise lawsuit guide explains how.

Counting only the operators and developers named in tracker entries (governments are defendants in most land use cases):

Operator or developer	Tracker entries	Cases
Amazon	4	Louisa County wells; Warrenton permit; Great Oak noise (no suit); Oregon nitrate settlement
xAI	2	NAACP Clean Air Act suit; Southaven turbine noise class
Meta	1	Newton County wells (plus the Cheyenne, Wyoming contamination episode, no suit)
Microsoft	1	Fairwater noise class
QTS and Compass	1	Digital Gateway (terminated)
Related Digital (OpenAI and Oracle campus)	1	Saline Township (developer as plaintiff, settled)
Nebius / DataOne	1	Vineland noise (withdrawn)
Alliance Cloud Services	1	Dowagiac noise class
T5 Data Centers and Alter	1	Grayslake
Hillwood and American Real Estate Partners	1	Joliet
Marathon Digital	1	Granbury noise suits
Vantage	1	Port Washington

Amazon leads because it has the largest operating footprint in the counties where residents have organized, and because its Oregon operations sat on top of an aquifer the state had already flagged. Google appears only in the Dalles records case, where the city, not Google, was the defendant. Two cases feature the developer as plaintiff: Saline Township, where Related Digital sued the township and won a consent judgment, and Edgerton, Kansas, where the city sued its own residents.

Money changed hands in exactly one hyperscaler case. Amazon Data Services agreed to pay $20.5 million on March 31, 2026 to settle claims that wastewater from its 13 eastern Oregon data centers contributed to nitrate contamination in a basin serving up to 45,000 residents. Amazon denied wrongdoing, and the funds go to well and water infrastructure projects rather than individual checks. The Saline Township consent judgment included a community benefits package for the township as the price of the project going forward. No noise case has produced a settlement or a judgment yet.

Projects stopped or reshaped by litigation and the pressure around it are a longer list: the Digital Gateway (terminated after the notice ruling), Bessemer's Project Marvel (dismissed but forced to restart), Tucson's Project Blue (rejected by the city while the open meetings case proceeded), and Great Oak (mitigation without a suit). In the pending cases, the relief requested is almost uniformly to void the approval, which is the outcome that matters most to neighbors.

If a data center is near you, the record so far suggests where leverage actually lives:

• The approval record beats the environmental argument. Notice, minutes, meeting conduct, and the zoning code's use list are where 13 of 25 cases live and where the only concluded win came from. Pull the file. Our guide to fighting a proposed data center shows what to look for.
• A decibel reading against the local code is the strongest noise fact. Every 2026 noise class leads with one.
• Water cases turn on baselines and on where the wastewater goes. Georgia and Virginia are construction cases; Oregon is a discharge case. Test your well now.
• Distance and neighbors define the case. The one-mile class is the emerging standard. Count who else is affected.
• Deadlines are short. The winning land use plaintiffs filed within weeks. Our deadlines guide explains why waiting is the most common way strong cases die.

Whether your facts fit a claim is a question for a lawyer. Our free case review connects you with an independent attorney in our network who handles data center cases in your state, at no cost and with no obligation. This report is updated as the tracker changes; the date at the top tells you how current the numbers are.