Residential delivery area · Kansas
ZIP Code 66503: Manhattan, KS
ZIP code 66503 uses the postal name Manhattan, Kansas and lies entirely in Riley County (Census 2020 ZIP-county file). About 17,000 people live there (Census Bureau, ACS 2020-2024), the 2nd most populous of Manhattan's 3 residential ZIP codes. Median household income is $97,846 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Manhattan (10%) and Keats (under 1%); 89% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Manhattan · 3 residential ZIPs
- County
- Riley County
- Census places
- Manhattan (10%); Keats (under 1%) census-designated place
- Metro area
- Manhattan, KS
- House district
- KS-1 119th Congress
- State
- Kansas
- Time zone
- Central
- Land area
- 83.2 sq mi · 208 people per sq mi
- PO Box ZIPs
- 66505 also use the name Manhattan
Where is ZIP code 66503?
66503 centers on 39.265°, -96.695° and covers 83.2 square miles of land plus 4.7 of water. It borders 7 ZIP codes: 66531, 66517, 66520, 66449, 66502, 66442, 66554.
The map draws ZIP code areas only. For the streets inside 66503, 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 66503 compare with the rest of Manhattan?
| Measure | 66503 | In Manhattan | In Riley County | In KS |
|---|---|---|---|---|
| People (ACS 2020-2024) | 17,273 | 2nd of 3 | 3rd of 13 | 55th of 704 |
| Median household income | $98k | 1st of 2 | 1st of 6 | 46th of 286 |
| Median home value | $339k | 1st of 2 | 1st of 5 | 35th of 282 |
Its median household income is higher than in 80% of U.S. residential ZIP codes, and it is denser than 63% 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 66503?
The 2020 Census counted 16,565 people in 66503; the ACS, which samples households over 2020-2024, estimates 17,273. Between the 2010 and 2020 censuses its population grew 23.4% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 17,273
- 2020 Census count
- 16,565+23.4% since 2010 (13,428)
- Households
- 7,071
- Median age
- 38.0
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 66503?
Of the 17,273 people the ACS estimates in 66503, 21.6% are under 18 and 14.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (74.0%).
- Under 1821.6%
- 18 to 6463.9%
- 65 and older14.5%
- White, not Hispanic74.0%
- Other or two or more8.7%
- Black, not Hispanic6.6%
- Hispanic or Latino6.2%
- Asian, not Hispanic4.5%
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 66503 earn?
Median household income is $97,846 (ACS 2020-2024), the highest of the 6 ranked ZIP codes in Riley County. It is not measurably different from 2015-2019 ($98,619 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $97,846
- Income per person
- $55,575
- Below the poverty line
- 7.4%
- Unemployed (of the labor force)
- 2.5%
- Adults 25+ with a bachelor's degree
- 61.8%
- Adjusted gross income per tax return, 2022
- $114,4847,760 returns; wages 59% 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 66503?
FHFA's house price index for 66503, built from repeat sales and appraisals of the same homes, rose 42% from 2015 to 2025 and rose 32% from 2020 to 2025, and moved −0.4% in 2025.
- Median home value (owners' estimate)
- $339,100
- Median gross rent
- $1,225
- Homes owned by their occupants
- 59.5%
- Housing units
- 7,779
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 66503?
320 business establishments had a location in this ZIP code in 2023, 21 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance50
- Professional, scientific, and technical services43
- Construction37
- Real estate and rental and leasing35
- Other services (except public administration)30
- Finance and insurance23
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 66503?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 66531 | Riley | 1,256 | $79k | 8.3 mi |
| 66517 | Ogden | 1,696 | $68k | 10.7 mi |
| 66520 | Olsburg | 635 | $95k | 11.1 mi |
| 66449 | Leonardville | 937 | $90k | 12.2 mi |
| 66502 | Manhattan | 43,693 | $55k | 12.4 mi |
| 66442 | Fort Riley | 16,890 | $52k | 13.0 mi |
| 66554 | Randolph | 770 | $97k | 16.7 mi |
| 66506 | Manhattan | 3,155 | – | 7.7 mi (near) |
| 66514 | Milford | 1,350 | $94k | 13.6 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.