
Knox County · Kentucky
ZIP code 40997
- Population
- 361
- Median income
- —
- Median home
- $47,700
- Sales tax
- 6%
ZCTA residents
Household, past 12 months
Owner-occupied value
Kentucky state rate
Quick answer
ZIP 40997 sits in Knox County, Kentucky and is home to 361 people. Median household income is —, the median home is worth $47,700 and median gross rent is —. 77% of households own their home, and purchases are taxed at 6% (Kentucky state rate).
- County
- Knox County
- State
- Kentucky (KY)
- Area codes
- Not published
- Metro area
- Outside covered metros
FIPS 21121
779 ZIPs covered
No NANPA match for this ZIP
Rate jurisdiction used for tax
The numbers for 40997
American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.
- Population
- 361ZIP 40997 residents
- Median household income
- —Past 12 months, inflation adjusted
- Median home value
- $47,700Owner-occupied units
- Median gross rent
- —Rent plus utilities, monthly
- Median age
- 28.4 yrsAll residents
- Homeownership rate
- 77%Owner-occupied households
ZIP 40997 in context
How this area compares with national benchmarks.
ZIP 40997 is a very small community in Knox County, Kentucky, with 361 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #628 of 779 ranked by population — larger than 19% of them. The median age here is 28.4 years against 39.1 nationally, a distinctly younger profile, typical of places with students, military posts or a fast-growing family population. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.
Households in ZIP 40997 earn a median of not published a year. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 24.4% of residents here, well above the 12.4% national rate, which is the single clearest signal in this dataset that median income here is carried by a narrow band of households.
The typical owner-occupied home in ZIP 40997 is valued at $47,700, 84.3% below the national figure, while median gross rent runs not published a month. 77% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.
A median age of 28.4 means a large student or early-career population; income medians in places like this understate household resources, since many residents are supported from outside the address. With 361 residents, a handful of survey responses moves every median on this page. Compare ZIP 40997 against its county rather than against national figures.
The Census withheld household income, gross rent for ZIP 40997 because the sample was too thin to publish at this geography. Those values were suppressed at the source, not lost in our dataset, and we do not model a replacement. Everything else on this page comes straight from the ACS 2019-2023 ACS 5-year tables.
Reading ZIP 40997 in context
How 40997 sits inside Knox County and Kentucky.
ZIP 40997 is tabulated inside Knox County, Kentucky, one of 15 ZIP areas the Census publishes for that county and 779 across Kentucky. This is one of the smallest tabulated ZIP areas in the state, the kind of rural route where a single subdivision or farm cluster accounts for most addresses. County assignment on this page follows the largest share of the ZIP's land area, which matters where a delivery route crosses a county line: mail addressed to 40997 can be handled by a post office in a neighbouring county even though the tabulation area is filed here.
Against its own county, 40997 reports a median household income of not published. Owner-occupied homes are valued at a median of $47,700, 42% below the county figure and 64% below the statewide ZIP median. Rent is reported gross — the contract amount plus tenant-paid utilities — at not published a month, which is why it reads higher than the advertised rent on a listing for the same unit.
Kentucky charges 6% statewide, and no local sales tax is layered on top, so the state rate is the full amount collected in 40997.
Everything above comes from the Census Bureau American Community Survey 2019-2023 ACS 5-year estimates for this ZIP Code Tabulation Area, with sales tax rates traced to the state revenue agency. Five-year estimates pool sixty months of responses, so they are stable enough to compare 40997 with its neighbours but always trail the current year, and any value the Census suppressed for sample size is shown as unpublished rather than filled in with a model.
Sales tax in 40997
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 40997 compares
ZIP 40997 against the median ZIP in Knox County and across Kentucky.
| Measure | ZIP 40997 | County median | State median | vs state |
|---|---|---|---|---|
| Median household income | — | $43,472 | $53,906 | — |
| Median home value | $47,700 | $82,400 | $130,850 | -64% |
| Median gross rent | — | $667 | $791 | — |
| Population | 361 | 675 | 1,457 | -75% |
Medians are computed across the 15 ZIP areas in Knox County and the 779 ZIP areas in Kentucky.
Statewide rank
Where this ZIP places among all 779 Kentucky ZIP areas.
- Income
- —
- Home value
- #634
- Population
- #628
Not published
above 3% of 654 state ZIPs
larger than 19% of 779 state ZIPs
Nearby ZIP codes
Other ZIP codes filed under Knox County.
Adjacent ZIP Codes
Other ZIP codes in Knox County, Kentucky.
ZIP 40997 questions
Common questions about this ZIP code.
- Where is ZIP code 40997?
- ZIP 40997 lies mostly in Knox 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 40997?
- Kentucky charges 6% statewide.
- Is 40997 expensive to live in?
- Median rent runs — a month, and the median home is worth $47,700 — -64% 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.