Static snapshot. This site serves two different things: 1,853 data centres reported by OpenStreetMap contributors nationwide, and 13 sites Helios infers from Arizona parcel records, exported on July 29, 2026. The first is a map of what has been recorded; the second is an argued hypothesis with an evidence chain. This is a point-in-time export, not a live view. See meta.json or the methodology.

NY

State · 36 data centres recorded in OpenStreetMap

Mapped facilities
36
on the map today
Floor area
0.13
km² across 30 buildings
Share of US load
140
MW, inferred upper bound
Water
0.30
million gal/day, inferred
1 of these 36 are not mapped as buildings, so no power figure is estimated for them. 1 is a campus boundary covering 0.06 km² of land. The megawatt figure above divides a national total by building floor area, and the area of a land parcel is not floor area. A site still being built consumed none of the electricity that total measures. Both are counted here and left out of the estimate rather than folded into it, so this region's load is understated by however much those represents.

When these appeared on the map

observed, not surveyed
01836201620182019202020212023202420252026
Data centres recorded in OpenStreetMap at the end of each month. The hatched stretch is before 2017-01, when telecom=data_center was not yet in common use — the near-zero readings there describe the tag, not the country. This is a count of what has been mapped, and OpenStreetMap carries no construction dates.

What the grid here looks like

reported by OSM contributors
Substations
997
69 kV and above
Bulk substations
112
230 kV and above
Highest voltage
765
kV, present in this state
Generating capacity
44,766
MW across 1,105 plants

A facility drawing hundreds of megawatts connects at bulk transmission voltage, so the second figure matters more than the first: forty 69 kV yards are not a substitute for one 500 kV substation. 380 of the plants here carry no capacity tag, so the megawatt total is a floor rather than the region's output.

Proximity is not connection. Nothing here shows that any facility has contracted power from any of these substations. That gets settled in interconnection filings Helios cannot read, and in several regions those queues now run for years. A county showing no substations may have none mapped rather than none standing.

Largest named mapped records

by mapped area
NameOperatorMapped asMapped area m²Share MWFirst mapped
NYGC Chateaugay2CRSiCampus boundary60,6322026-04-21
Databank LGA3DatabankBuilding18,34420.12025-05-06
Bloomberg Data CenterBloombergBuilding16,95818.62025-05-06
fifteenfortyseven CSR ORNY1fifteenfortyseven Critical Systems RealtyBuilding14,07615.42025-05-06
Greenidge Power Plant and Data CenterGreenidge Generation Holdings Inc.Building8,9099.82026-02-19
Telehouse TeleportTelehouseBuilding6,5037.12025-05-06
Merrill Lynch Data CenterMerrill LynchBuilding5,8936.52025-05-06
32 Avenue of the Americasnot recordedBuilding3,9394.32023-04-26
Cable & Wireless Cable Landing Stationnot recordedBuilding3,4143.72016-12-12
33 Thomas Streetnot recordedBuilding2,8613.12023-10-05
Old MainClarkson UniversityBuilding2,2902.52026-04-20
Blockfusion Niagra Fallsnot recordedBuilding1,9102.12026-04-20
IBM Buildingnot recordedBuilding1,4271.62023-04-26
SU Green Data CenterSyracuse UniversityBuilding1,1311.22021-04-13
Turnkey Internetnot recordedBuilding9721.12022-10-31
Blockfusion Niagra Fallsnot recordedBuilding7710.82026-04-20
Blockfusion Niagra Fallsnot recordedBuilding2290.32026-04-20
Blockfusion Niagra Fallsnot recordedBuilding2200.22026-04-20
Blockfusion Niagra Fallsnot recordedBuilding1440.22026-04-20
Landmax Data Systems, Incnot recordedBuilding1350.12026-06-12
Blockfusion Niagra Fallsnot recordedBuilding1120.12026-04-20
Blockfusion Niagra Fallsnot recordedBuilding1120.12026-04-20
Blockfusion Niagra Fallsnot recordedBuilding530.12026-04-20
Blockfusion Niagra Fallsnot recordedBuilding480.12026-04-20
Blockfusion Niagra Fallsnot recordedBuilding290.02026-04-20
Blockfusion Niagra Fallsnot recordedBuilding290.02026-04-20
Frontier Sciencenot recordedPoint2022-05-13
Digital Realty New York JFK13Digital RealtyPoint2024-10-04
Digital Realty New York JFK12Digital RealtyPoint2024-10-04
Lumen Albany 4Lumen TechnologiesPoint2025-03-20
DatavergeDatavergePoint2025-04-18

“First mapped” is when OpenStreetMap recorded the facility, not when it was built — OpenStreetMap carries no construction dates. Mapped area means a building floor plate, campus boundary, or construction polygon according to the “Mapped as” column; those quantities are never added together. The megawatt column appears only for buildings and is their floor-area share of a reported national total, not a measurement.