Jefferson County · Kentucky
ZIP code 40204
- Population
- 14,018
- Median income
- $70,706
- Median home
- $314,700
- Sales tax
- 6%
ZCTA residents
Household, past 12 months
Owner-occupied value
Combined state + local
Quick answer
ZIP 40204 sits in Jefferson County, Kentucky and is home to 14,018 people. Median household income is $70,706, the median home is worth $314,700 and median gross rent is $1,225. 51.4% of households own their home, and purchases are taxed at 6% combined.
- County
- Jefferson County
- State
- Kentucky (KY)
- Area codes
- 502, 812, 930
FIPS 21111
779 ZIPs covered
NANPA codes serving this area
The numbers for 40204
American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.
- Population
- 14,018ZIP 40204 residents
- Median household income
- $70,706Past 12 months, inflation adjusted
- Median home value
- $314,700Owner-occupied units
- Median gross rent
- $1,225Rent plus utilities, monthly
- Median age
- 38.8 yrsAll residents
- Homeownership rate
- 51.4%Owner-occupied households
Sales tax in 40204
What a purchase inside this ZIP costs at checkout.
This ZIP falls inside the Louisville rate area, so state, county, city and district levies are published here as a full stack.
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 40204 compares
ZIP 40204 against the median ZIP in Jefferson County and across Kentucky.
| Measure | ZIP 40204 | County median | State median | vs state |
|---|---|---|---|---|
| Median household income | $70,706 | $69,640 | $53,906 | +31% |
| Median home value | $314,700 | $220,700 | $130,850 | +141% |
| Median gross rent | $1,225 | $1,144 | $791 | +55% |
| Population | 14,018 | 18,968 | 1,457 | +862% |
Medians are computed across the 38 ZIP areas in Jefferson County and the 779 ZIP areas in Kentucky.
Statewide rank
Where this ZIP places among all 779 Kentucky ZIP areas.
- Income
- #133
- Home value
- #31
- Population
- #108
richer than 79% of 641 state ZIPs
above 95% of 654 state ZIPs
larger than 86% of 779 state ZIPs
Comparable ZIP codes
Kentucky ZIP areas with almost the same household income.
Nearby ZIP codes
Other ZIP codes filed under Jefferson County.
ZIP 40204 questions
Common questions about this ZIP code.
- Where is ZIP code 40204?
- ZIP 40204 lies mostly in Jefferson 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 40204?
- Purchases are taxed at 6% combined, built from the Louisville jurisdiction stack.
- Is 40204 expensive to live in?
- Median rent runs $1,225 a month, about 21% of median household income, and the median home is worth $314,700 — +141% 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.