Christian County · Kentucky
ZIP code 42240
- Population
- 41,510
- Median income
- $49,872
- Median home
- $147,400
- Sales tax
- 6%
ZCTA residents
Household, past 12 months
Owner-occupied value
Kentucky state rate
Quick answer
ZIP 42240 sits in Christian County, Kentucky and is home to 41,510 people. Median household income is $49,872, the median home is worth $147,400 and median gross rent is $866. 55.6% of households own their home, and purchases are taxed at 6% (Kentucky state rate).
- County
- Christian County
- State
- Kentucky (KY)
- Area codes
- Not published
- Metro area
- Outside covered metros
FIPS 21047
779 ZIPs covered
No NANPA match for this ZIP
Rate jurisdiction used for tax
The numbers for 42240
American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.
- Population
- 41,510ZIP 42240 residents
- Median household income
- $49,872Past 12 months, inflation adjusted
- Median home value
- $147,400Owner-occupied units
- Median gross rent
- $866Rent plus utilities, monthly
- Median age
- 35.4 yrsAll residents
- Homeownership rate
- 55.6%Owner-occupied households
Sales tax in 42240
What a purchase inside this ZIP costs at checkout.
Kentucky levies 6% statewide with no local add-ons. 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 42240 compares
ZIP 42240 against the median ZIP in Christian County and across Kentucky.
| Measure | ZIP 42240 | County median | State median | vs state |
|---|---|---|---|---|
| Median household income | $49,872 | $64,362 | $53,906 | -7% |
| Median home value | $147,400 | $146,950 | $130,850 | +13% |
| Median gross rent | $866 | $866 | $791 | +9% |
| Population | 41,510 | 2,448 | 1,457 | +2749% |
Medians are computed across the 8 ZIP areas in Christian County and the 779 ZIP areas in Kentucky.
Statewide rank
Where this ZIP places among all 779 Kentucky ZIP areas.
- Income
- #388
- Home value
- #275
- Population
- #14
richer than 39% of 641 state ZIPs
above 58% of 654 state ZIPs
larger than 98% of 779 state ZIPs
Comparable ZIP codes
Kentucky ZIP areas with almost the same household income.
Nearby ZIP codes
Other ZIP codes filed under Christian County.
ZIP 42240 questions
Common questions about this ZIP code.
- Where is ZIP code 42240?
- ZIP 42240 lies mostly in Christian County, Kentucky. 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 42240?
- Kentucky charges 6% statewide.
- Is 42240 expensive to live in?
- Median rent runs $866 a month, about 21% of median household income, and the median home is worth $147,400 — +13% against the typical Kentucky 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
- Kentucky 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.