Residential delivery area · Kansas
ZIP Code 66523: Osage City, KS
ZIP code 66523 uses the postal name Osage City, Kansas and lies mostly in Osage County (96% of its land) with the rest in Lyon County (Census 2020 ZIP-county file). About 3,900 people live there (Census Bureau, ACS 2020-2024). Median household income is $74,716 (Census Bureau, ACS 2020-2024). By Census place, 2% of its land lies in Osage City; 98% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Osage City · its only residential ZIP
- County
- Osage County (96%); Lyon County (4%)
- Census places
- Osage City
- Metro area
- Topeka, KS
- House district
- KS-2 119th Congress
- State
- Kansas
- Time zone
- Central
- Land area
- 153.1 sq mi · 26 people per sq mi
Where is ZIP code 66523?
66523 centers on 38.616°, -95.834° and covers 153.1 square miles of land plus 7.7 of water. It borders 5 ZIP codes: 66451, 66868, 66413, 66537, 66856.
The map draws ZIP code areas only. For the streets inside 66523, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 66523 compare with the rest of Osage County?
| Measure | 66523 | In Osage County | In KS |
|---|---|---|---|
| People (ACS 2020-2024) | 3,941 | 1st of 15 | 152nd of 704 |
| Median household income | $75k | 6th of 10 | 121st of 286 |
| Median home value | $167k | 6th of 8 | 150th of 282 |
Its median household income is higher than in 54% of U.S. residential ZIP codes, and it is denser than 30% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 66523?
The 2020 Census counted 3,722 people in 66523; the ACS, which samples households over 2020-2024, estimates 3,941. Between the 2010 and 2020 censuses its population fell 2.9% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 3,941
- 2020 Census count
- 3,722−2.9% since 2010 (3,833)
- Households
- 1,672
- Median age
- 42.7
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 66523?
Of the 3,941 people the ACS estimates in 66523, 22.3% are under 18 and 19.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (98.1%).
- Under 1822.3%
- 18 to 6458.6%
- 65 and older19.1%
- White, not Hispanic98.1%
- Other or two or more0.9%
- Hispanic or Latino0.8%
- Black, not Hispanic0.2%
- Asian, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 66523 earn?
Median household income is $74,716 (ACS 2020-2024), the 6th highest of the 10 ranked ZIP codes in Osage County. It rose from $52,796 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $74,716±$12,162
- Income per person
- $33,750
- Below the poverty line
- 6.6%
- Unemployed (of the labor force)
- 1.0%
- Adults 25+ with a bachelor's degree
- 20.9%
- Adjusted gross income per tax return, 2022
- $60,7651,700 returns; wages 67% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 66523?
FHFA's house price index for 66523, built from repeat sales and appraisals of the same homes, rose 99% from 2015 to 2025 and rose 54% from 2020 to 2025, and moved −3.5% in 2025.
- Median home value (owners' estimate)
- $167,200
- Median gross rent
- $798
- Homes owned by their occupants
- 78.5%
- Housing units
- 1,869
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 66523?
93 business establishments had a location in this ZIP code in 2023, 2 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade19
- Health care and social assistance14
- Construction12
- Other services (except public administration)12
- Accommodation and food services10
- Finance and insurance8
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 66523?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 66451 | Lyndon | 1,671 | $77k | 8.7 mi |
| 66868 | Reading | 620 | $103k | 9.3 mi |
| 66413 | Burlingame | 1,721 | $65k | 10.9 mi |
| 66537 | Scranton | 1,475 | $70k | 11.2 mi |
| 66856 | Lebo | 1,583 | $76k | 15.1 mi |
| 66543 | Vassar | 980 | $75k | 12.8 mi (near) |
| 66830 | Admire | 203 | $57k | 13.9 mi (near) |
| 66510 | Melvern | 684 | $57k | 14.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.