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Eureka Kansas ZIP Codes

Eureka holds a single ZIP code.

Every ZIP code in Eureka

The complete list of Eureka, Kansas ZIP codes with the county each falls in.
ZIP codeCounty
67045Greenwood County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Eureka codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Eureka. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Eureka ZIP code begins 670. Those first three digits identify the sectional center facility that processes mail for this part of Kansas. Statewide that range covers 58 ZIP codes, so Eureka accounts for 2% of it.

Every Kansas ZIP prefix and the region it covers →

Area codes covering Eureka

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Eureka occupies.

Eureka Kansas area codes in full →

Where Eureka's ZIP codes sit

Each point is one Eureka ZIP code, plotted from its record coordinates.
  • Reference points and footprint
  • Not an official NANPA boundary
  • Not a USPS delivery area

Cities near Eureka

The closest places to Eureka with their own ZIP code list, nearest first.
CityDistanceZIP codes
Hamilton Kansas ZIP codes13 mi1 ZIP code
Severy Kansas ZIP codes15 mi1 ZIP code
Virgil Kansas ZIP codes19 mi1 ZIP code
Toronto Kansas ZIP codes19 mi1 ZIP code
Fall River Kansas ZIP codes21 mi1 ZIP code
Madison Kansas ZIP codes23 mi1 ZIP code
Cassoday Kansas ZIP codes24 mi1 ZIP code
Howard Kansas ZIP codes25 mi1 ZIP code

Straight-line distance between place reference points, not driving distance.