How much data centre capacity does Seoul have?

DC Atlas tracks 47 data centres in the Seoul data centre market. 542 MW is live, 188 MW is under construction, for 802 MW of total potential at full buildout.

Who are the largest data centre operators in Seoul?

18 operators run facilities in the Seoul data centre market. LG Uplus is the largest by total potential, with 2 sites and 150 MW.

Which utilities supply power to data centres in Seoul?

KEPCO serve the most data centre sites in the Seoul data centre market. DC Atlas holds a named power supplier for 96% of the facilities it tracks here.

Seoul: 47 sites, 18 operators, 542 MW live

Back to Facilities

There are 47 data centres in Seoul, South Korea, spanning 6 sub-markets, 18 operators, 42 operational, 542 MW live, 802 MW total potential. Largest by total potential: LG Uplus (2 sites), then KT Cloud.

Map of 43 data centres in Seoul

Every Seoul site DC Atlas tracks with a position on record, coloured by status.

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<iframe src="https://dcatlas.io/en/embed/map/market/seoul" title="The Seoul data center map by DC Atlas" width="100%" height="520" style="border:1px solid #ddd;border-radius:12px" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>

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Live

542MW

Under construction

188MW

Planned

0MW

Total potential

802MW

21% of pipeline modelled

Who supplies the power

96% of the data centres we track in the Seoul market have a named power supplier

KEPCO45sites

Who is building in Seoul

The 10 largest operators here by total potential, of 18 tracked in this market.

Operator	Sites	Live	Total potential
LG Uplus	2	150 MW	150 MW
KT Cloud	10	28 MW	138 MW
SK Broadband	7	108 MW	118 MW
Equinix	2	—	64 MW
Digital Edge DC	2	41 MW	41 MW
Naver Cloud	1	40 MW	40 MW
CapitaLand	2	20 MW	40 MW
KINX	7	39 MW	39 MW
ST Telemedia Global Data Centres	1	30 MW	30 MW
Empyrion Digital	1	29 MW	29 MW

When Seoul was built

523 MW of the live capacity here carries a commissioning date — 90% of the operational sites in this market.

Recent activity

10 recorded developments in the Seoul market, the latest on 27 Aug 2026.

27 Aug 2026Expansion
LG CNS deploys direct-to-chip cooling at Naver Cloud Goyang data center
LG CNS deployed direct-to-chip cooling technology for Naver Cloud at a data center facility in Goyang City, South Korea.
18 Aug 2026Announced
Alibaba Cloud launches third data center in South Korea
Alibaba Cloud announced the opening of its third data center in Seoul, South Korea, expanding its regional infrastructure as part of a $53 billion global AI and cloud infrastructure commitment. The new facility raises Alibaba Cloud's service-level agreement for South Korea from 99.95% to 99.99%, enabling redundancy across three sites. The company now operates 104 availability zones across 30 regions and will use the facility to expand agentic AI service offerings and support South Korean enterprises with AI and cloud services.
31 Jul 2026Investment200 MW
LG to invest additional $910m in 200MW data center near Seoul
LG says it will invest an additional $910 million in a 200MW data center near Seoul.
18 Mar 2025Commissioned
Seongnam-si Zenlayer 001 commissioned
Zenlayer's presence at this facility was registered on PeeringDB on 18 March 2025 — a presence-registration date, not a commissioning date.
18 Mar 2025Commissioned
Seoul Zenlayer 007 commissioned
Zenlayer's presence at this facility was registered on PeeringDB on 18 March 2025 — a presence-registration date, not a commissioning date.
18 Mar 2025Commissioned
Seongnam-si Zenlayer 006 commissioned
Zenlayer's presence at this facility was registered on PeeringDB on 18 March 2025 — a presence-registration date, not a commissioning date.
18 Mar 2025Commissioned
Seongnam-si Zenlayer 010 commissioned
Zenlayer's presence at this facility was registered on PeeringDB on 18 March 2025 — a presence-registration date, not a commissioning date.
18 Mar 2025Commissioned
Seoul Zenlayer 008 commissioned
Zenlayer's presence at this facility was registered on PeeringDB on 18 March 2025 — a presence-registration date, not a commissioning date.

All recent activity

Questions about Seoul

How many data centres are in Seoul?: There are 47 data centres in Seoul, South Korea, spanning 6 sub-markets, 18 operators, 42 operational, 542 MW live, 802 MW total potential. Largest by total potential: LG Uplus (2 sites), then KT Cloud.
How much data centre capacity does Seoul have?: DC Atlas tracks 47 data centres in the Seoul data centre market. 542 MW is live, 188 MW is under construction, for 802 MW of total potential at full buildout.
Who are the largest data centre operators in Seoul?: 18 operators run facilities in the Seoul data centre market. LG Uplus is the largest by total potential, with 2 sites and 150 MW.
Which utilities supply power to data centres in Seoul?: KEPCO serve the most data centre sites in the Seoul data centre market. DC Atlas holds a named power supplier for 96% of the facilities it tracks here.