Residential delivery area · Kansas
ZIP Code 66021: Edgerton, KS
ZIP code 66021 uses the postal name Edgerton, Kansas and lies mostly in Johnson County (64% of its land), reaching into Miami County and Douglas County (Census 2020 ZIP-county file). About 2,800 people live there (Census Bureau, ACS 2020-2024). Median household income is $88,125 (Census Bureau, ACS 2020-2024). By Census place, 11% of its land lies in Edgerton; 89% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Edgerton · its only residential ZIP
- County
- Johnson County (64%); Miami County (27%); Douglas County (9%)
- Census places
- Edgerton
- Metro area
- Kansas City, MO-KS
- House districts
- KS-3 (91%), KS-2 (9%) 119th Congress, by share of land
- State
- Kansas
- Time zone
- Central
- Land area
- 51.2 sq mi · 55 people per sq mi
Where is ZIP code 66021?
66021 centers on 38.757°, -95.005° and covers 51.2 square miles of land plus 4.0 of water. It borders 5 ZIP codes: 66030, 66092, 66083, 66025, 66071.
The map draws ZIP code areas only. For the streets inside 66021, 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 66021 compare with the rest of Johnson County?
| Measure | 66021 | In Johnson County | In KS |
|---|---|---|---|
| People (ACS 2020-2024) | 2,819 | 32nd of 35 | 187th of 704 |
| Median household income | $88k | 27th of 32 | 64th of 286 |
| Median home value | $242k | 31st of 31 | 67th of 282 |
Its median household income is higher than in 71% of U.S. residential ZIP codes, and it is denser than 44% 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 66021?
The 2020 Census counted 2,730 people in 66021; the ACS, which samples households over 2020-2024, estimates 2,819. Between the 2010 and 2020 censuses its population grew 4.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 2,819±544 (90% margin)
- 2020 Census count
- 2,730+4.5% since 2010 (2,612)
- Households
- 930
- Median age
- 38.4
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 66021?
Of the 2,819 people the ACS estimates in 66021, 27.5% are under 18 and 18.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (90.9%).
- Under 1827.5%
- 18 to 6454.0%
- 65 and older18.5%
- White, not Hispanic90.9%
- Hispanic or Latino5.8%
- Other or two or more2.5%
- Asian, not Hispanic0.5%
- Black, not Hispanic0.3%
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 66021 earn?
Median household income is $88,125 (ACS 2020-2024), the 27th highest of the 32 ranked ZIP codes in Johnson County. It is not measurably different from 2015-2019 ($84,540 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $88,125±$9,768
- Income per person
- $44,216
- Below the poverty line
- 3.1%
- Unemployed (of the labor force)
- 2.8%
- Adults 25+ with a bachelor's degree
- 21.3%
- Adjusted gross income per tax return, 2022
- $79,4201,230 returns; wages 72% 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 66021?
FHFA's house price index for 66021, built from repeat sales and appraisals of the same homes, rose 120% from 2015 to 2025 and rose 66% from 2020 to 2025, and moved +14.8% in 2025.
- Median home value (owners' estimate)
- $242,300
- Median gross rent
- $1,288
- Homes owned by their occupants
- 89.8%
- Housing units
- 985
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 66021?
65 business establishments had a location in this ZIP code in 2023, 6 more than in 2018; the most are in transportation and warehousing (ZIP Code Business Patterns).
- Transportation and warehousing20
- Construction10
- Wholesale trade5
- Other services (except public administration)5
- Manufacturing4
- Retail trade4
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 66021?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 66030 | Gardner | 26,328 | $98k | 5.3 mi |
| 66092 | Wellsville | 4,351 | $88k | 7.2 mi |
| 66083 | Spring Hill | 13,011 | $117k | 9.6 mi |
| 66025 | Eudora | 8,083 | $115k | 10.3 mi |
| 66071 | Paola | 12,400 | $84k | 14.6 mi |
| 66031 | New Century | 655 | – | 8.1 mi (near) |
| 66061 | Olathe | 67,967 | $110k | 11.6 mi (near) |
| 66006 | Baldwin City | 8,013 | $81k | 12.7 mi (near) |
| 66062 | Olathe | 78,841 | $118k | 13.2 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.