ZIP Code 66540

66540 is one of Kansas's ZIP codes, delivering to addresses in Soldier, Jackson County.

City: Soldier
County: Jackson County
State: Kansas
Prefix: 665xx

Where this code sits

66540 is part of the 665xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Soldier.

Soldier Kansas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 66540 delivers to without sharing its boundary.

785 Area code 785

ZIP codes nearest 66540

The ZIP codes whose reference points sit closest to 66540.
ZIP code	Distance	Delivers to
ZIP code 66432	6.0 mi	Havensville, KS
ZIP code 66416	6.1 mi	Circleville, KS
ZIP code 66521	11 mi	Onaga, KS
ZIP code 66417	11 mi	Corning, KS
ZIP code 66428	11 mi	Goff, KS
ZIP code 66436	12 mi	Holton, KS
ZIP code 66550	12 mi	Wetmore, KS
ZIP code 66422	15 mi	Emmett, KS

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 66540, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 66540. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.