which city has the deepest subway system in the world?

The deepest subway station in the world is Hongyancun Station in Chongqing, China, reaching about 116 meters (381 feet) below ground.

Quick Scoop

• City with the deepest subway station : Chongqing, China.

• Station name : Hongyancun Station (Chongqing Rail Transit Line 9, also connected to Line 5).

• Depth : Its deepest point is around 116 meters underground, roughly like a 39‑story building buried below the surface.

How it became the deepest

• Chongqing is a mountainous megacity, so engineers had to dig extremely deep to link lines through steep terrain.

• Hongyancun’s depth even surpasses Kyiv’s famous Arsenalna station, which used to hold the “deepest station” record at about 105.5 meters.

System vs. single station

• As an overall deep metro system , networks like Pyongyang’s and St. Petersburg’s are often cited among the deepest on average.

• But for the specific question “which city has the deepest subway system in the world?” in terms of a single record‑holding station, Chongqing currently takes the crown with Hongyancun Station.

TL;DR: If you are chasing depth bragging rights, head to Chongqing, China —Hongyancun Station is currently the deepest subway station on Earth.

Information gathered from public forums or data available on the internet and portrayed here.