Internet speed in South Korea
Median speeds from Ookla's Speedtest Global Index, June 2026 — what a rental's line and your phone actually get, not what the listing says.
Home broadband239 Mbpsmedian download in Seoul0world median 130300+Fast — Several people on calls at once, large uploads, 4K177 Mbps upload · 4 ms latency
Mobile data327 Mbpsmedian download in Seoul0world median 109300+31 Mbps upload · 21 ms latency
By city
under 30 basic · fair · 100+ good · 150+ fast — the tick is the world median.
| Place | Home broadband | Mobile data | Work from it? |
|---|---|---|---|
| Seoulmeasured in Seoul | 239 Mbps | 327 Mbps | Yes |
| Busanmeasured in Busan | 222 Mbps | 223 Mbps | Yes |
| South Korea as a wholeOokla publishes no separate figure for Jeju, Gyeongju, Seoraksan & Sokcho; the national median stands for them. | 251 Mbps | 251 Mbps | Yes |
A median is the middle of every test run in the place that quarter: half the lines are faster, half slower. Cities usually beat the national number; islands and hill towns usually do not. "Work from it" is this site's own line — 150 Mbps down, 50 up, under 30 ms — for a household on calls all day; one person needs far less.
The guides in South Korea
SeoulSouth KoreaPalaces, street food, and relentless energy
BusanSouth KoreaKorea’s port city: beaches in the middle of it, the largest fish market in the country, and a hillside village painted every colour
JejuSouth KoreaA volcanic island of black rock and green tea, with women who have dived for shellfish for centuries
GyeongjuSouth KoreaA thousand years of Silla capital spread through a small city, with royal tombs rising out of the parks
Seoraksan & SokchoSouth KoreaGranite spires and autumn colour two hours from Seoul, with a fishing port and a cable car below them