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Knox County · Kentucky

ZIP code 40734

Population, income, housing costs and the sales tax rate charged on purchases inside ZIP 40734 — Census 2019-2023 ACS 5-year, no modelled estimates.
Population
3,633

ZCTA residents

Median income
$40,270

Household, past 12 months

Median home
$112,400

Owner-occupied value

Sales tax
6%

Kentucky state rate

Quick answer

ZIP 40734 sits in Knox County, Kentucky and is home to 3,633 people. Median household income is $40,270, the median home is worth $112,400 and median gross rent is $674. 78.2% of households own their home, and purchases are taxed at 6% (Kentucky state rate).

County
Knox County

FIPS 21121

State
Kentucky (KY)

779 ZIPs covered

Area codes
Not published

No NANPA match for this ZIP

Metro area
Outside covered metros

Rate jurisdiction used for tax

The numbers for 40734

American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.

Population
3,633ZIP 40734 residents
Median household income
$40,270Past 12 months, inflation adjusted
Median home value
$112,400Owner-occupied units
Median gross rent
$674Rent plus utilities, monthly
Median age
42 yrsAll residents
Homeownership rate
78.2%Owner-occupied households

ZIP 40734 in context

How this area compares with national benchmarks.

ZIP 40734 is a small town in Knox County, Kentucky, with 3,633 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #246 of 779 ranked by population — larger than 68% of them. The median age here is 42 years against 39.1 nationally, a slightly older profile than the country as a whole. 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 40734 earn a median of $40,270 a year, 48.7% below the national figure of $78,538. Household income here is measured before tax and pooled across everyone at the address, which is why it reads higher than typical individual earnings in the same area. Poverty reaches 30.7% 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 40734 is valued at $112,400, 63% below the national figure, while median gross rent runs $674 a month, 52.1% below the national figure, or roughly $8,088 across a full year. A household on the local median income would put about 20.1% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is within the standard affordability guideline. The home-price-to-income ratio works out to 2.8×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 78.2% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

Every value on this page is published directly by the Census for this area — nothing is modelled or interpolated. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

Reading ZIP 40734 in context

How 40734 sits inside Knox County and Kentucky.

ZIP 40734 is tabulated inside Knox County, Kentucky, one of 15 ZIP areas the Census publishes for that county and 779 across Kentucky. Population sits in the small-town band, typically one main street plus the addresses that feed into it. 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 40734 can be handled by a post office in a neighbouring county even though the tabulation area is filed here.

Against its own county, 40734 reports a median household income of $40,270, 7% below the $43,472 county median, and 25% below the $53,906 typical KY ZIP. Owner-occupied homes are valued at a median of $112,400, 36% above the county figure and 14% below the statewide ZIP median. Rent is reported gross — the contract amount plus tenant-paid utilities — at $674 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 40734.

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 40734 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 40734

What a purchase inside this ZIP costs at checkout.

Rate applied
6%State base rate only
Tax on $100
$6Rounded to the dollar
Tax on $1,000
$60Before any exemptions

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.

Rent burden
20%Median rent ÷ median income
Price-to-income
2.8×Home value ÷ household income
Est. mortgage
$583/mo20% down, 30-yr at 6.75%
Poverty rate
30.7%Residents below poverty line

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 40734 compares

ZIP 40734 against the median ZIP in Knox County and across Kentucky.

MeasureZIP 40734County medianState medianvs state
Median household income$40,270$43,472$53,906-25%
Median home value$112,400$82,400$130,850-14%
Median gross rent$674$667$791-15%
Population3,6336751,457+149%

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

richer than 20% of 641 state ZIPs

#514
Home value

above 36% of 654 state ZIPs

#416
Population

larger than 68% of 779 state ZIPs

#246

Comparable ZIP codes

Kentucky ZIP areas with almost the same household income.

ZIPCountyIncomeHome valueRent
41557Pike County$40,313$141,700—
41124Lawrence County$40,208$83,400$709
41425Morgan County$40,208$78,400$1,278
41132Carter County$40,405$101,600—
41222Johnson County$40,446$115,200$623
40144Breckinridge County$40,496$204,200—

Nearby ZIP codes

Other ZIP codes filed under Knox County.

Adjacent ZIP Codes

Other ZIP codes in Knox County, Kentucky.

ZIP 40734 questions

Common questions about this ZIP code.

Where is ZIP code 40734?
ZIP 40734 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 40734?
Kentucky charges 6% statewide.
Is 40734 expensive to live in?
Median rent runs $674 a month, about 20% of median household income, and the median home is worth $112,400 — -14% 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.

Related pages for this area.

Sources & transparency

Every figure on this page is a published estimate for ZIP Code Tabulation Area 40734, except the affordability ratios and mortgage estimate, which we derive from those medians and label as estimates.

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.