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U.S. ZIP Code tools

ZIP radius search

Explore ZIP areas whose reference points lie within your chosen radius.

Straight-line distance between approximate postal-area coordinates. This is not a road distance or a delivery estimate.

Postal tools

ZIP Code lookup

Find a ZIP Code and see its locality, source and geographic information.

Nearby postal codes

Find ZIP areas near a geographic point.

ZIP radius search

Explore ZIP areas whose reference points lie within your chosen radius.

Distance calculator

Calculate straight-line distance between ZIP-area reference points.