Postal Code 18-421 in Kałęczyn, Gmina Piątnica, Łomża County
Verified postal code reference for 18-421 in Kałęczyn, Poland. Includes locality context, administrative hierarchy, and approximate centroid coordinates for validation and integration workflows.
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Geographic & Administrative Context
The postal identifier 18-421 is under the regional jurisdiction of Poland. Within this territory, it is specifically managed as part of the podlasie » omza-county » gmina-piatnica » kaeczyn administrative chain, ensuring precise logistical and geographic synchronization with official geocoded registries.