ZIP Code 66088

66088 is one of Kansas's ZIP codes, delivering to addresses in Valley Falls, Jefferson County.

City: Valley Falls
County: Jefferson County
State: Kansas
Prefix: 660xx

Where this code sits

66088 is part of the 660xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Valley Falls.

Valley Falls Kansas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 66088 delivers to without sharing its boundary.

785 Area code 785

ZIP codes nearest 66088

The ZIP codes whose reference points sit closest to 66088.
ZIP code	Distance	Delivers to
ZIP code 66419	7.8 mi	Denison, KS
ZIP code 66060	8.7 mi	Nortonville, KS
ZIP code 66070	9.4 mi	Ozawkie, KS
ZIP code 66097	11 mi	Winchester, KS
ZIP code 66512	11 mi	Meriden, KS
ZIP code 66509	12 mi	Mayetta, KS
ZIP code 66066	12 mi	Oskaloosa, KS
ZIP code 66023	13 mi	Effingham, 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 66088, plotted from its record coordinates.

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

Scope ZIP code 66088. 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.