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

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zipcodes.pro — STATE/KS/COUNTY/OSAGE

Osage County, KS ZIP codes

There are 9 ZIP codes in Osage County, KS, in 9 towns, from 66413 to 66543. The largest are 66523 (Osage City), 66414 (Carbondale) and 66524 (Overbrook). 1 more crosses into it from a neighbouring county: 66856.

The county seat is Lyndon.

ZIP codes
9
Partly in it
1 more
Towns
9
County seat
Lyndon
County FIPS
20139
State
Kansas
Population
15,744
Median household income
$74,467
Land area
706 sq mi
Metro area
Topeka

Osage County ZIP codes by town

Lyndon (county seat)
66451

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Osage County

This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Osage County.

Map of Osage County ZIP codes

664136641466451665106652366524665286653766543

The ZIP codes of Osage County, 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.

Osage County in numbers

About 15,744 people live in Osage County, in 6,432 households, the 32nd most populous of Kansas's 105 counties. The median household income is $74,467 a year, about the same as the Kansas median of $74,275 (US: $80,734). The median owner-occupied home is valued at $156,800 (28% below the Kansas median), and median gross rent is $785 a month. The median age is 42.9; 21.6% of adults 25 and over hold a bachelor's degree or higher (35.6% across Kansas); the average commute takes 29 minutes.

Population15,744Osage15,744
Households6,432Osage6,432
Median age42.9Osage42.9Kansas37.4US 38.9
Median household income$74,467Osage$74,467Kansas$74,275US $80,734
Median home value$156,800Osage$156,800Kansas$217,200US $332,700
Median gross rent$785Osage$785Kansas$1,060US $1,413
Bachelor's degree or higher21.6%Osage21.6%Kansas35.6%US 35.7%
Mean commute28.5 minOsage28.5 minKansas19.7 minUS 26.4 min
Population density22 / sq miOsage22 / sq mi

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

Largest towns in Osage County

Largest towns in Osage County
TownZIP codesPopulation
Osage City 1 2,828
Carbondale 1 1,341
Overbrook 1 1,113
Burlingame 1 1,046
Lyndon 1 1,023
Scranton 1 911
Vassar 1 832
Quenemo 1 353
Melvern 1 352

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Osage County.

Not sure you are in Osage County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Osage County, with figures

ZIP codes in Osage County
ZIP City Type Population Median income Median home
66413 Burlingame , KS Standard 1,721 $65,179 $124,000
66414 Carbondale , KS Standard 2,360 $74,063 $162,300
66451 Lyndon , KS Standard 1,671 $76,908 $158,500
66510 Melvern , KS Standard 684 $57,262 $178,300
66523 Osage City , KS Standard 3,941 $74,716 $167,200
66524 Overbrook , KS Standard 2,473 $84,375 $173,100
66528 Quenemo , KS Standard 761 $73,472 —
66537 Scranton , KS Standard 1,475 $70,000 $99,800
66543 Vassar , KS Standard 980 $75,288 $172,200

Cite this page

zipcodes.pro. “Osage County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ks/county/osage

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