
Knox County · Indiana
ZIP code 47591
- Population
- 25,191
- Median income
- $57,862
- Median home
- $140,800
- Sales tax
- 7%
ZCTA residents
Household, past 12 months
Owner-occupied value
Indiana state rate
Quick answer
ZIP 47591 sits in Knox County, Indiana and is home to 25,191 people. Median household income is $57,862, the median home is worth $140,800 and median gross rent is $794. 61.8% of households own their home, and purchases are taxed at 7% (Indiana state rate).
- County
- Knox County
- State
- Indiana (IN)
- Area codes
- Not published
- Metro area
- Outside covered metros
FIPS 18083
807 ZIPs covered
No NANPA match for this ZIP
Rate jurisdiction used for tax
The numbers for 47591
American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.
- Population
- 25,191ZIP 47591 residents
- Median household income
- $57,862Past 12 months, inflation adjusted
- Median home value
- $140,800Owner-occupied units
- Median gross rent
- $794Rent plus utilities, monthly
- Median age
- 38.6 yrsAll residents
- Homeownership rate
- 61.8%Owner-occupied households
ZIP 47591 in context
How this area compares with national benchmarks.
ZIP 47591 is a small city in Knox County, Indiana, with 25,191 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #90 of 807 ranked by population — larger than 88% of them. The median age here is 38.6 years against 39.1 nationally, a slightly younger profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.
Households in ZIP 47591 earn a median of $57,862 a year, 26.3% below the national figure of $78,538. Median household income counts every pre-tax dollar arriving at an address — wages, self-employment, Social Security, pensions, interest and public assistance — for everyone living there, so multi-earner households pull the figure up even where individual pay is modest. Poverty reaches 13.7% of residents here, above the 12.4% national rate.
The typical owner-occupied home in ZIP 47591 is valued at $140,800, 53.6% below the national figure, while median gross rent runs $794 a month, 43.5% below the national figure, or roughly $9,528 across a full year. A household on the local median income would put about 16.5% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 2.4×, against roughly 3.9× nationally, so purchase prices are unusually low against local pay, the pattern in places where supply is plentiful and wage growth has been flat. 61.8% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.
All values below were released by the Census for this exact geography, with no gap-filling on our side. 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 47591 in context
How 47591 sits inside Knox County and Indiana.
ZIP 47591 is tabulated inside Knox County, Indiana, one of 12 ZIP areas the Census publishes for that county and 807 across Indiana. This is a mid-sized ZIP that covers a large share of its county's 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 47591 can be handled by a post office in a neighbouring county even though the tabulation area is filed here.
Against its own county, 47591 reports a median household income of $57,862, close to the $58,654 county median, and 16% below the $68,990 typical IN ZIP. Owner-occupied homes are valued at a median of $140,800, 51% above the county figure and 16% below the statewide ZIP median. Rent is reported gross — the contract amount plus tenant-paid utilities — at $794 a month, which is why it reads higher than the advertised rent on a listing for the same unit.
Indiana charges 7% statewide, and no local sales tax is layered on top, so the state rate is the full amount collected in 47591.
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 47591 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 47591
What a purchase inside this ZIP costs at checkout.
Indiana levies 7% 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 47591 compares
ZIP 47591 against the median ZIP in Knox County and across Indiana.
| Measure | ZIP 47591 | County median | State median | vs state |
|---|---|---|---|---|
| Median household income | $57,862 | $58,654 | $68,990 | -16% |
| Median home value | $140,800 | $93,200 | $168,100 | -16% |
| Median gross rent | $794 | $705 | $895 | -11% |
| Population | 25,191 | 813 | 2,793 | +802% |
Medians are computed across the 12 ZIP areas in Knox County and the 807 ZIP areas in Indiana.
Statewide rank
Where this ZIP places among all 807 Indiana ZIP areas.
- Income
- #571
- Home value
- #491
- Population
- #90
richer than 22% of 734 state ZIPs
above 33% of 733 state ZIPs
larger than 89% of 807 state ZIPs
Comparable ZIP codes
Indiana ZIP areas with almost the same household income.
Nearby ZIP codes
Other ZIP codes filed under Knox County.
Adjacent ZIP Codes
Other ZIP codes in Knox County, Indiana.
ZIP 47591 questions
Common questions about this ZIP code.
- Where is ZIP code 47591?
- ZIP 47591 lies mostly in Knox County, Indiana. 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 47591?
- Indiana charges 7% statewide.
- Is 47591 expensive to live in?
- Median rent runs $794 a month, about 16% of median household income, and the median home is worth $140,800 — -16% against the typical Indiana 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
- Indiana 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.