Use this page to confirm that 121400
belongs to Heishan County inside
China. For applications, validate the original postal code string
together with the country and administrative hierarchy instead of relying on a global numeric pattern.
Centroid Location: The marker represents the verified geographic centroid for the
121400 identifier area.
Geographic & Administrative Context
The postal identifier 121400 is under the
regional jurisdiction of
China.
Within this territory, it is specifically managed as part of the
Liaoning » Jinzhou Shi » Heishan Xian » Heishan County administrative chain, ensuring precise logistical and geographic synchronization with official geocoded
registries.
Nearby postal code lookups
Compare 121400 with adjacent identifiers in
China. These links keep the local code range connected without
loading a large directory table.