26 facilities · Q3 2026 · H2 2025 – Q2 2026 ·
Data centers in Seoul: 26 facilities, colocation pricing
Colocation pricing and providers in Seoul →
How many data centers are in Seoul?
Coloprice tracks 26 data centers in Seoul, South Korea: 25 operational, 1 under construction and 0 announced, run by 11 operators.
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Average wholesale, $/kW/mo — Collecting
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Retail rack, $/mo — Collecting
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Year on year
$0.118
Commercial power, $/kWh
Q3 2026 · · H2 2025 – Q2 2026 · CBRE Korea, Korea Data Center Investment (13 July 2026) · 4 Tier III/IV · 1 AI-ready · 130+ MW · sources
How this market compares
| Market | $/kW/mo | $/kWh | facilities | Round-trip |
|---|---|---|---|---|
| Seoul, South Korea | · · · | $0.118 | 26 | — |
| Japan | $280 | $0.185 | 145 | 29 ms |
| Singapore | $403 | $0.270 | 62 | 68 ms |
Round-trip times are measured figures from the latency matrix; power tariffs from the index. Cross-connects add $50–$350 per month each on top of any rate. Round-trip · The Index
Why prices sit where they do
Seoul is an interconnection market rather than a construction market, and the catalog shows it plainly: the 4 facilities we track inside the metro hold 12 MW between them against 288 MW nationally, and none of them has anything in pipeline. New Korean supply is going to Incheon, Paju and Pohang, where land and grid connections still exist; what stays in the city is carrier-adjacent space sold by the rack at scarcity pricing. Digital Realty, Equinix, KT Cloud and LG Uplus all hold positions here, which keeps quotes comparable, but the binding constraint is inventory rather than competition. Tokyo is 29 ms away, close enough that Seoul and Tokyo run as an active-active pair rather than a warm standby, and Korean enterprise architectures assume it. The practical split is the one Singapore buyers already make: keep the network-facing tier in the metro and put anything that grows by the megawatt outside it.
Frequently asked questions
How many data centers are in Seoul?
Coloprice tracks 26 data centers in Seoul, South Korea: 25 operational, 1 under construction and 0 announced, run by 11 operators.
Which operators run data centers in Seoul?
By number of facilities tracked: KT Cloud (6), LG Uplus (4), Equinix (3), SK Broadband (3), KINX (3).
What is the total data center power capacity in Seoul?
Facilities that publish capacity add up to 130 MW (5 of 26 sites disclose a figure); the largest published site is Digital Realty ICN11 (Digital Seoul 2) with 64 MW.
How much does colocation cost in Seoul, South Korea?
No published wholesale $/kW benchmark exists for Seoul, South Korea yet, so we show nothing rather than an estimate. What is verifiable: the catalog tracks 26 facilities here. Run at least three quotes in parallel — where no benchmark is published, individual offers vary far more.
Why is colocation priced the way it is in Seoul, South Korea?
Commercial electricity in Seoul, South Korea is $0.118 per kWh, and power is the largest single input into a colocation rate. On top of that sit land and grid-connection availability, interconnection density, and how much capacity competes for the same tenants — 26 facilities in our catalog, 1 of them announced or under construction.
Where is colocation cheaper near Seoul, South Korea?
Seoul, South Korea sits at the cheaper end of its regional cluster on the inputs we can verify. The table below compares neighbouring hubs on power tariff, facility count and round-trip time.
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Full Seoul, South Korea market report
Operator-level pricing indications, capacity coming online, and the questions worth asking each provider in this market. We compile it per request and send it as PDF.
Seongnam (Pangyo) vs SeoulIncheon vs SeoulTokyo (Inzai) vs Seoul
Data centers
| Facility | Operator | Power, MW | Tier | Status |
|---|---|---|---|---|
| Digital Realty ICN10 (Digital Seoul 1) | Digital Realty | 12 | — | Operational |
| Equinix SL1 | Equinix | — | — | Operational |
| KT Yongsan IDC | KT Cloud | — | — | Operational |
| LG U+ Pyeongchon Mega Center | LG Uplus | — | III | Operational |
| Equinix SL2x | Equinix | 22 | — | Operational |
| Equinix SL4 | Equinix | — | — | Operational |
| STT Seoul 1 | STT GDC Korea (joint venture with Hyosung Heavy Industries) | 30 | III | Operational |
| SK Broadband IDC Gasan | SK Broadband | — | III | Operational |
| KT Mokdong IDC1 | KT Cloud | — | — | Operational |
| KT Mokdong IDC2 | KT Cloud | — | — | Operational |
| LG Uplus Pyeongchon 2 Center | LG Uplus | — | IV* | Operational |
| Samsung SDS Sangam Data Center | Samsung SDS | — | — | Operational |
| SK Broadband IDC Seocho | SK Broadband | — | — | Operational |
| SK Broadband IDC Ilsan | SK Broadband | — | — | Operational |
| KT Yeouido IDC | KT Cloud | — | — | Operational |
| KT Gangnam IDC | KT Cloud | — | — | Operational |
| KT Namguro IDC | KT Cloud | — | — | Operational |
| KINX Dogok Center | KINX | — | — | Operational |
| Digital Edge SEL1 | Digital Edge | 2.4 | — | Operational |
| Woori Financial Data Center (Sangam) | Woori FIS | — | — | Operational |
| Sejong IX Center | Sejong Networks | — | — | Operational |
| Digital Realty ICN11 (Digital Seoul 2) | Digital Realty | 64 | — | Under construction |
| KINX Sangam | KINX | — | — | Operational |
| KINX Gasan | KINX | — | — | Operational |
| LG Uplus Nonhyun IDC | LG Uplus | — | — | Operational |
| LG Uplus SEOCHO1 IDC | LG Uplus | — | — | Operational |
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