Pyeongtaek-si
Pyeongtaek's 591,022 residents host a port that handled 1.638 million automobiles, America's largest overseas base, and a hydrogen-port pilot in one city.
Pyeongtaek has turned one coastline into South Korea's loading dock, alliance barracks, and hydrogen test lab. City reporting said resident-registration population reached 591,022 at the end of 2023, far above the GeoNames baseline of 364,694. On paper it is a Gyeonggi city about 40 miles south of Seoul and only 14 metres above sea level. In practice it is where Korea piles together three functions states often separate: export logistics, military projection, and strategic industry.
Camp Humphreys alone hosts about 43,000 people and is the largest U.S. military installation overseas. The U.S. installation overview rounds the wider city to about 587,000 people, which is broadly consistent with the city's own 591,022 resident-registration count. Pyeongtaek Port meanwhile remains one of the country's critical export nodes. Korea's public data portal for the Gyeonggi Pyeongtaek Port Authority says the port handled 116.137 million tons of cargo and 1.638 million automobiles in 2023. The base needs secure roads, railheads, and resilient berths; exporters benefit from the same infrastructure. That makes Pyeongtaek less a normal municipality than a state-backed transfer point where cars, troops, fuels, and supply chains share the same geography.
The next layer is decarbonization. Hyundai Motor Group and Pyeongtaek City agreed in November 2025 to build a carbon-neutral hydrogen port around a 15-kilometre hydrogen pipeline, fuel-cell generation at Kia and Hyundai Glovis facilities, and Korea's first hydrogen-powered auto transporter route between Asan and Pyeongtaek Port. The port is not only moving vehicles. It is becoming a test site for how Korea wants future freight to move. Once a city hosts the alliance railhead, a top car-export harbor, and pilot infrastructure for hydrogen shipping, national resource allocation starts compounding rather than diversifying.
Biologically, Pyeongtaek behaves like a sea anemone. An anemone stays anchored, defends a patch of territory, and becomes valuable because other organisms cluster around its shelter. Pyeongtaek does the same through mutualism, keystone-species concentration, and resource allocation. Washington, Seoul, automakers, and logistics operators all need the node for different reasons, so capital keeps returning to the same shoreline instead of dispersing elsewhere.
Camp Humphreys and Pyeongtaek Port now sit inside the same city-scale logistics system that is also being used to pilot South Korea's hydrogen-port buildout.