Residential delivery area · Kansas
ZIP Code 66604: Topeka, KS
ZIP code 66604 is in Topeka, Kansas, entirely in Shawnee County (Census 2020 ZIP-county file). About 23,000 people live there (Census Bureau, ACS 2020-2024), the 2nd most populous of Topeka's 18 residential ZIP codes. Median household income is $60,874 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Topeka · 18 residential ZIPs
- County
- Shawnee County
- Census places
- Topeka
- Metro area
- Topeka, KS
- House district
- KS-2 119th Congress
- State
- Kansas
- Time zone
- Central
- Land area
- 6.8 sq mi · 3,404 people per sq mi
- PO Box ZIPs
- 13 more ZIP codes use the name Topeka for PO boxes or single organizations
Where is ZIP code 66604?
66604 centers on 39.039°, -95.726° and covers 6.8 square miles of land plus 0.0 of water. It borders 7 ZIP codes: 66622, 66621, 66606, 66611, 66612, 66614, 66615.
The map draws ZIP code areas only. For the streets inside 66604, 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 66604 compare with the rest of Topeka?
| Measure | 66604 | In Topeka | In Shawnee County | In KS |
|---|---|---|---|---|
| People (ACS 2020-2024) | 23,006 | 2nd of 18 | 2nd of 28 | 35th of 704 |
| Median household income | $61k | 7th of 16 | 13th of 22 | 204th of 286 |
| Median home value | $139k | 8th of 14 | 16th of 22 | 191st of 282 |
Its median household income is higher than in 31% of U.S. residential ZIP codes, and it is denser than 90% 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 66604?
The 2020 Census counted 22,933 people in 66604; the ACS, which samples households over 2020-2024, estimates 23,006. Between the 2010 and 2020 censuses its population fell 1.8% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 23,006
- 2020 Census count
- 22,933−1.8% since 2010 (23,344)
- Households
- 9,806
- Median age
- 37.3
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 66604?
Of the 23,006 people the ACS estimates in 66604, 22.6% are under 18 and 17.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (70.2%), then Hispanic or Latino (15.3%).
- Under 1822.6%
- 18 to 6459.9%
- 65 and older17.5%
- White, not Hispanic70.2%
- Hispanic or Latino15.3%
- Other or two or more9.2%
- Black, not Hispanic4.3%
- Asian, not Hispanic0.9%
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 66604 earn?
Median household income is $60,874 (ACS 2020-2024), the 13th highest of the 22 ranked ZIP codes in Shawnee County. It is not measurably different from 2015-2019 ($58,567 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $60,874
- Income per person
- $33,333
- Below the poverty line
- 16.7%
- Unemployed (of the labor force)
- 4.7%
- Adults 25+ with a bachelor's degree
- 35.6%
- Adjusted gross income per tax return, 2022
- $56,98010,940 returns; wages 70% 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 66604?
FHFA's house price index for 66604, built from repeat sales and appraisals of the same homes, rose 87% from 2015 to 2025 and rose 53% from 2020 to 2025, and moved +4.6% in 2025.
- Median home value (owners' estimate)
- $139,100
- Median gross rent
- $1,082
- Homes owned by their occupants
- 54.5%
- Housing units
- 10,699
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 66604?
668 business establishments had a location in this ZIP code in 2023, 48 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade156
- Accommodation and food services113
- Health care and social assistance97
- Other services (except public administration)93
- Finance and insurance52
- Professional, scientific, and technical services47
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 66604?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 66622 | Topeka | 56 | – | 0.9 mi |
| 66621 | Topeka | 442 | – | 1.3 mi |
| 66606 | Topeka | 9,842 | $57k | 1.6 mi |
| 66611 | Topeka | 9,828 | $56k | 2.1 mi |
| 66612 | Topeka | 1,754 | $26k | 2.5 mi |
| 66614 | Topeka | 32,538 | $71k | 6.3 mi |
| 66615 | Topeka | 2,943 | $108k | 9.2 mi |
| 66603 | Topeka | 1,830 | $45k | 3.0 mi (near) |
| 66608 | Topeka | 4,216 | $49k | 4.4 mi (near) |
| 66607 | Topeka | 9,965 | $30k | 4.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.