Housing data for Karns, TN
Karns, TN has an estimated 4,115 residents and 1,519 homes (US Census Bureau, 2020–2024 American Community Survey).
It is an unincorporated community in Knox County.
22.6% of households rent.
The median gross rent is $1,765 a month.
Figures last updated on .
- Residents
- 4,115 (±743)
- Housing units
- 1,519 (±273)
- Households that rent
- 22.6%
- Median gross rent
- $1,765
What stands out in Karns
Renters paying 30% or more of income: 10.7% (±18.1 points) in Karns, lower than in Knox County (50.1%).
Homes in buildings of 5 or more units: 2.3% (±4.9 points) in Karns, lower than in Knox County (19.9%).
Median gross rent: $1,765 (±$225) in Karns, higher than in Knox County ($1,261).
Median household income: $100,043 (±$10,659) in Karns, higher than in Knox County ($74,222).
Housing in Karns at a glance
- Median rent: $1,765 median gross rent a month
- Rent by bedrooms
- Rent burden: 10.7% of renters pay 30% or more of income (Small sample: wide margin of error)
- Renters and owners: 22.6% of households rent (Small sample: wide margin of error)
- Income and affordability: $100,043 median household income
- Home values: $328,600 median home value
- Homeowner costs: $1,814 median monthly cost with a mortgage
- Property taxes: $1,182 median real estate taxes a year
- Types of homes: 2.3% of homes are in buildings of 5 or more units
- Bedrooms: 83.4% of homes have 3 or more bedrooms (Small sample: wide margin of error)
- Age of homes: 39.4% of homes were built before 1980
- Vacancy rate: 0.0% rental vacancy rate (Small sample: wide margin of error)
- Heating fuel: 57.6% heat with electricity
- Commute and cars: 26.2 minutes average trip to work
- How long people stay: 24.4% moved in since 2020 (Small sample: wide margin of error)
- Crowding and facilities: 0.0% of homes have more than 1 person per room (Small sample: wide margin of error)
Karns against Knox County, its state and the nation
| Karns | Knox County | Tennessee | United States | |
|---|---|---|---|---|
| Residents | 4,115 (±743) | 494,148 (exact) | 7,066,383 (exact) | 334,922,499 |
| Housing units | 1,519 (±273) | 218,661 (±151) | 3,143,670 (±903) | 143,775,355 |
| Households that rent | 22.6% (±11.6 points) | 34.8% (±0.7 points) | 33.1% (±0.3 points) | 34.8% |
| Median gross rent | $1,765 (±$225) | $1,261 (±$26) | $1,189 (±$7) | $1,413 |
| Median household income | $100,043 (±$10,659) | $74,222 (±$1,390) | $69,595 (±$429) | $80,734 |
| Median home value | $328,600 (±$19,977) | $320,900 (±$5,524) | $286,700 (±$1,492) | $332,700 |
| Median real estate taxes (a year) | $1,182 (±$121) | $1,367 (±$17) | $1,442 (±$8) | $3,119 |
| Built before 1980 | 39.4% (±14.0 points) | 43.2% (±1.2 points) | 40.7% (±0.3 points) | 49.7% |
| Average commute | 26.2 minutes (±3.1) | 22.2 minutes (±0.3) | 25.7 minutes (±0.1) | 26.4 minutes |
| Households with broadband | 92.6% (±6.0 points) | 89.5% (±0.6 points) | 89.2% (±0.2 points) | 91.0% |
| Median age of residents | 33.6 years (±6.7) | 37.4 years (±0.2) | 38.9 years (±0.1) | 38.9 years |
Karns covers 3.0 square miles of land, about 1,379 residents per square mile (Census Bureau Gazetteer).
Crime reported to police in Knox County
Karns has no police department of its own in the FBI’s figures, so this is the figure for Knox County as a whole.
In 2025, the police departments that report for Knox County recorded 370 violent and 1,360 property crimes per 100,000 residents.
A county-wide figure describes the whole county, not this place; crime varies from one community to the next.
ZIP codes in Karns
| ZIP code | Share of the ZIP’s land in this place | Residents | Median gross rent | Median home value | Median household income |
|---|---|---|---|---|---|
| 37931 | 11% | 31,842 | $1,542 | $359,600 | $92,150 |
A ZIP code is a mail route rather than a boundary, so the Census Bureau publishes figures for ZIP Code Tabulation Areas built from census blocks; the share column says how much of each one’s land lies in this place.
Places near Karns
| Place | Distance | Median gross rent | Median home value | Households that rent |
|---|---|---|---|---|
| Powell | 6.0 mi | $1,276 | $299,400 | 21.1% |
| Farragut | 8.1 mi | $1,966 | $583,400 | 15.3% |
| Clinton | 8.3 mi | $962 | $225,000 | 37.0% |
| Knoxville | 9.0 mi | $1,191 | $239,700 | 53.4% |
| Oak Ridge | 10 mi | $1,131 | $270,200 | 34.2% |
| Louisville | 11 mi | $950 | $379,900 | 6.1% |
| Halls (community) | 12 mi | $1,178 | $321,300 | 13.3% |
| Oliver Springs | 13 mi | $523 | $180,900 | 30.6% |
Places in Tennessee most like Karns
| Place | Median gross rent | Median home value | Median household income | Households that rent |
|---|---|---|---|---|
| Bartlett | $1,638 | $310,400 | $102,070 | 14.4% |
| Seymour | $1,515 | $308,100 | $82,855 | 22.5% |
| Hopewell | $1,296 | $305,600 | $87,842 | 18.3% |
| New Union | $1,584 | $312,100 | $81,367 | 19.1% |
| Pegram | $1,671 | $387,100 | $111,172 | 8.6% |
| Fairmount | $1,675 | $464,500 | $137,317 | 11.1% |
Matched on rent, home value, income, the share who rent, the age of the homes, the share in apartment buildings and the commute, each measured against the spread across Tennessee.
HUD Fair Market Rent for Karns, fiscal year 2027
| Studio | 1 bedroom | 2 bedrooms | 3 bedrooms | 4 bedrooms |
|---|---|---|---|---|
| $1,171 | $1,178 | $1,475 | $1,844 | $2,122 |
HUD income limits for Karns, fiscal year 2026
| Household size | Extremely low (30%) | Very low (50%) | Low (80%) |
|---|---|---|---|
| 1 person | $21,800 | $36,300 | $58,100 |
| 2 people | $24,900 | $41,500 | $66,400 |
| 3 people | $28,000 | $46,700 | $74,700 |
| 4 people | $33,000 | $51,850 | $82,950 |
| 5 people | $38,680 | $56,000 | $89,600 |
| 6 people | $44,360 | $60,150 | $96,250 |
| 7 people | $50,040 | $64,300 | $102,900 |
| 8 people | $55,720 | $68,450 | $109,500 |
These are the limits HUD sets for its housing programs in the Knoxville, TN HUD Metro FMR Area, where HUD’s median family income for fiscal year 2026 is $103,700.
A program can use its own limits; tax-credit and local programs often do.
Karns is a census-designated place: an unincorporated community the Census Bureau draws for statistics, with no municipal government of its own.
Survey years: 2020–2024 (American Community Survey 5-year estimates), compared with 2015–2019.
Margins of error are at the 90% confidence level.
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Questions about Karns
What is the average rent in Karns, TN?
The Census Bureau publishes the median rather than the average: the median gross rent in Karns is $1,765 (±$225) a month (2020–2024 American Community Survey), so half of renting households pay less and half pay more.
How much is a one-bedroom apartment in Karns?
The median gross rent for a one-bedroom home in Karns, TN is $3,500 or more a month (2020–2024 American Community Survey).
What is the median household income in Karns?
The median household income in Karns is $100,043 (±$10,659) a year (2020–2024 American Community Survey).
What is the average home value in Karns, TN?
The Census Bureau publishes the median: $328,600 (±$19,977) for owner-occupied homes in Karns (2020–2024 American Community Survey).
What is the average mortgage payment in Karns?
The Census Bureau publishes total owner costs rather than the mortgage alone: the median for owners with a mortgage in Karns, TN is $1,814 (±$131) a month, including taxes, insurance and utilities.
How much are property taxes in Karns?
The median real estate tax paid by homeowners in Karns, TN is $1,182 (±$121) a year (2020–2024 American Community Survey).
What ZIP codes are in Karns?
The ZIP code that covers Karns is 37931.
What is the median rent in ZIP code 37931?
The median gross rent in ZIP Code Tabulation Area 37931 is $1,542 (±$78) a month (2020–2024 American Community Survey).
Sources
- Demographic and Housing Estimates (DP05), 2020–2024 ACS 5-year estimates — Karns CDP, Tennessee
- Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Karns CDP, Tennessee
- Selected Economic Characteristics (DP03), 2020–2024 ACS 5-year estimates — Karns CDP, Tennessee
- Median Real Estate Taxes Paid by Mortgage Status (B25103), 2020–2024 ACS 5-year estimates — Karns CDP, Tennessee
- Selected Social Characteristics (DP02), 2020–2024 ACS 5-year estimates — Karns CDP, Tennessee
- Total Population (B01003), 2015–2019 ACS 5-year estimates — Karns CDP, Tennessee
- Median Gross Rent (B25064), 2015–2019 ACS 5-year estimates — Karns CDP, Tennessee
- HUD Fair Market Rents, fiscal year 2027: Knoxville, TN HUD Metro FMR Area
- HUD Small Area Fair Market Rents, fiscal year 2027
- HUD Income Limits, fiscal year 2026: Knoxville, TN HUD Metro FMR Area
- US Census Bureau, American Community Survey 2020–2024 5-year estimates for ZIP Code Tabulation Areas
- Consumer Price Index for All Urban Consumers (CPI-U), US city average, all items, US Bureau of Labor Statistics: annual averages 2019 and 2024
- US Census Bureau, 2024 Gazetteer Files
To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Karns CDP, Tennessee (place:38800, in state:47).
Each estimate (E or PE) has a margin of error beside it (M or PM).
The 2015–2019 figures are B01003_001E, B01003_001M, B25064_001E, B25064_001M from the 2019 release.
The API needs a free key.
DP05_0001E, DP05_0001M, DP04_0001E, DP04_0001M, DP04_0047PE, DP04_0047PM, DP04_0134E, DP04_0134M, DP03_0062E, DP03_0062M, DP04_0089E, DP04_0089M
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.
Figures last updated on .