
Technical Data
Conditions
Overview
Nantong is a prefecture-level city in southeastern Jiangsu province, China. Located on the northern bank of the Yangtze River, near the river mouth. Nantong is a vital river port bordering Yancheng to the north; Taizhou to the west; Suzhou, Wuxi and Shanghai to the south across the river; and the East China Sea to the east. Its population was 7,726,635 as of the 2020 census, 3,766,534 of whom lived in the built-up area made up of three urban districts.
Location
32.0000°N, 120.8000°E
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How central Nantong sits in the sea-route network we cover — a connectivity score across navigable distances. A higher score means the port is navigationally close to many other well-connected ports, the maritime signature of a hub.
Directly routable to 348 other covered ports.
Method. A connectivity score across our own route network: a port reads higher when it is navigationally close to many other well-connected ports. The score is rescaled 0–100 within the snapshot, so the single most-connected port reads 100. Distances are Suez / Panama / Malacca-aware navigable sea miles.
Coverage. The route network spans the 350 largest commercial ports, so this ranks hubs within that covered network, not against every port on earth. The number is deterministic — no confidence grade is invented. Computed Aug 27, 2026.
Conditions