Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/KS/EUREKA

Eureka ZIP code, Kansas

The ZIP code for Eureka, KS is 67045, and its area code is 620.

USPS city name
1 ZIP code
Population
2,223
Area code
620
State
Kansas

Eureka in numbers

About 2,223 people live in Eureka, in 940 households. The median household income is $48,828 a year, 34% below the Kansas median of $74,275 (US: $80,734). The median owner-occupied home is valued at $79,200 (64% below the Kansas median), and median gross rent is $703 a month. The median age is 42.5; 11.3% of adults 25 and over hold a bachelor's degree or higher (35.6% across Kansas); the average commute takes 22 minutes.

Population2,223Eureka2,223
Households940Eureka940
Median age42.5Eureka42.5Kansas37.4US 38.9
Median household income$48,828Eureka$48,828Kansas$74,275US $80,734
Median home value$79,200Eureka$79,200Kansas$217,200US $332,700
Median gross rent$703Eureka$703Kansas$1,060US $1,413
Bachelor's degree or higher11.3%Eureka11.3%Kansas35.6%US 35.7%
Mean commute21.5 minEureka21.5 minKansas19.7 minUS 26.4 min
Population density971 / sq miEureka971 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Eureka city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Eureka

ZIP codes with the USPS city name Eureka
ZIP City Type Population Median income Median home
67045 Eureka , KS Standard 3,406 $62,629 $110,100

Map of Eureka ZIP codes

67045

The ZIP codes of Eureka, KS, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Eureka

The nearest larger towns are El Dorado (12,769 people, 31 mi), Augusta (9,216 people, 38 mi) and Burlington (2,605 people, 39 mi).

More nearby: every ZIP code in Greenwood County · Kansas ZIP codes

Cite this page

zipcodes.pro. “Eureka, KS ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ks/eureka

Underlying data is public domain or openly licensed — sources, vintages and licences.