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/OSKALOOSA

Oskaloosa ZIP code, Kansas

The ZIP code for Oskaloosa, KS is 66066, and its area code is 785.

USPS city name
1 ZIP code
Population
1,113
Area code
785
State
Kansas

Oskaloosa in numbers

About 1,113 people live in Oskaloosa, in 428 households. The median household income is $83,750 a year, 13% above the Kansas median of $74,275 (US: $80,734). The median owner-occupied home is valued at $183,100 (16% below the Kansas median), and median gross rent is $846 a month. The median age is 38.9; 23.0% of adults 25 and over hold a bachelor's degree or higher (35.6% across Kansas); the average commute takes 22 minutes.

Population1,113Oskaloosa1,113
Households428Oskaloosa428
Median age38.9Oskaloosa38.9Kansas37.4US 38.9
Median household income$83,750Oskaloosa$83,750Kansas$74,275US $80,734
Median home value$183,100Oskaloosa$183,100Kansas$217,200US $332,700
Median gross rent$846Oskaloosa$846Kansas$1,060US $1,413
Bachelor's degree or higher23.0%Oskaloosa23.0%Kansas35.6%US 35.7%
Mean commute22.3 minOskaloosa22.3 minKansas19.7 minUS 26.4 min
Population density1,120 / sq miOskaloosa1,120 / sq mi

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

ZIP codes addressed as Oskaloosa

ZIP codes with the USPS city name Oskaloosa
ZIP City Type Population Median income Median home
66066 Oskaloosa , KS Standard 2,432 $79,990 $225,700

Map of Oskaloosa ZIP codes

66066

The ZIP codes of Oskaloosa, 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 Oskaloosa

The nearest larger towns are Valley Falls (1,382 people, 12 mi), Tonganoxie (5,891 people, 15 mi) and Lawrence (96,051 people, 18 mi).

Towns near Oskaloosa
TownPopulationDistance
Tonganoxie 5,891 14.7 mi
Lawrence 96,051 17.9 mi
Basehor 7,491 21.4 mi
Leavenworth 37,195 22.1 mi
Lansing 11,246 22.4 mi
Eudora 6,119 22.8 mi
Topeka 125,786 24.0 mi
Bonner Springs 7,839 25.6 mi
Atchison 10,785 25.8 mi
De Soto 6,414 26.4 mi
Edwardsville 4,724 28.2 mi
Holton 3,387 28.4 mi

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

Cite this page

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

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