Butler County · Kansas
ZIP code 66840
- Population
- 554
- Median income
- $55,469
- Median home
- $88,400
- Sales tax
- 6.5%
ZCTA residents
Household, past 12 months
Owner-occupied value
Kansas state rate
Quick answer
ZIP 66840 sits in Butler County, Kansas and is home to 554 people. Median household income is $55,469, the median home is worth $88,400 and median gross rent is $763. 83.3% of households own their home, and purchases are taxed at 6.5% (Kansas state rate).
- County
- Butler County
- State
- Kansas (KS)
- Area codes
- Not published
- Metro area
- Outside covered metros
FIPS 20015
704 ZIPs covered
No NANPA match for this ZIP
Rate jurisdiction used for tax
The numbers for 66840
American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.
- Population
- 554ZIP 66840 residents
- Median household income
- $55,469Past 12 months, inflation adjusted
- Median home value
- $88,400Owner-occupied units
- Median gross rent
- $763Rent plus utilities, monthly
- Median age
- 37.8 yrsAll residents
- Homeownership rate
- 83.3%Owner-occupied households
Sales tax in 66840
What a purchase inside this ZIP costs at checkout.
Kansas levies 6.5% statewide, and counties, cities and special districts inside this ZIP can add their own local rate on top. Check the county page for the local component before you quote a price.
Affordability in this ZIP
Derived from the Census medians above — indicative, not an offer.
A rent burden above 30% is the federal threshold for cost-burdened households, and a price-to-income multiple above 4× is generally considered a stretched housing market. The mortgage figure is principal and interest only — taxes, insurance and HOA dues are extra.
How 66840 compares
ZIP 66840 against the median ZIP in Butler County and across Kansas.
| Measure | ZIP 66840 | County median | State median | vs state |
|---|---|---|---|---|
| Median household income | $55,469 | $75,417 | $66,250 | -16% |
| Median home value | $88,400 | $151,600 | $125,000 | -29% |
| Median gross rent | $763 | $906 | $825 | -8% |
| Population | 554 | 1,435 | 917 | -40% |
Medians are computed across the 16 ZIP areas in Butler County and the 704 ZIP areas in Kansas.
Statewide rank
Where this ZIP places among all 704 Kansas ZIP areas.
- Income
- #505
- Home value
- #486
- Population
- #446
richer than 23% of 658 state ZIPs
above 24% of 637 state ZIPs
larger than 37% of 704 state ZIPs
Comparable ZIP codes
Kansas ZIP areas with almost the same household income.
Nearby ZIP codes
Other ZIP codes filed under Butler County.
ZIP 66840 questions
Common questions about this ZIP code.
- Where is ZIP code 66840?
- ZIP 66840 lies mostly in Butler County, Kansas. County assignment follows the largest share of land area, so a ZIP straddling a county line is filed under its dominant county.
- What sales tax do I pay in 66840?
- Kansas charges 6.5% statewide, plus any county, city or district rate that applies locally.
- Is 66840 expensive to live in?
- Median rent runs $763 a month, about 17% of median household income, and the median home is worth $88,400 — -29% against the typical Kansas ZIP.
- Is a ZCTA the same as a postal ZIP code?
- Not exactly. The Census builds ZIP Code Tabulation Areas from the ZIP codes of addresses inside each census block, so a ZCTA can differ slightly from the USPS delivery route of the same number, and PO-box-only ZIPs have no ZCTA at all.
Keep going
Related pages for this area.
Sources & transparency
- US Census Bureau, ACS 2019-2023 5-year estimates — 2019-2023 ACS 5-year — population, income, housing
- Census 2020 ZCTA-to-county relationship file — County assignment by largest land-area overlap
- Kansas Department of Revenue — Sales tax rates and local add-ons
Last reviewed December 2024. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.