HousingHandbookReference data

U.S. ZIP Code · TN37721

Knox County · Knoxville, TN

Typical home value

$330,342[1]

Zillow Home Value Index, as of April 2026

Appreciation

1-year
+3.0%
5-year / yr
+9.6%
10-year / yr
+8.6%

Relative price

vs U.S.
+16.3%
vs metro
+2.2%
vs state
+24.8%
ZIP 37721 location in TN
Location of ZIP 37721 in TN

Price history

Zillow Home Value Index — monthly, smoothed and seasonally adjusted.

The typical home in 37721 is worth $330,342 — 2.2% above the Knoxville, TN median. Over the past year, values have risen 3.0%. Homes here rent for a typical $1,923 a month — a 7.0% gross rental yield. The effective property tax rate is 0.3%.

#Rent & investment

Typical asking rent, and the returns it implies at the current home value.

Monthly rent
$1,923[2]
Gross yield
7.0%[2]
Cap rate
4.2%[2]

#Property tax

Effective rate — total real estate taxes paid relative to total home value.

Effective tax rate
0.3%[3]
Typical annual tax
$1,118[3]

#Climate risk

FEMA National Risk Index ratings for Knox County. "Not Applicable" means the hazard does not threaten the county.

Overall risk
Relatively Moderate[4]
Riverine flood
Relatively Moderate
Coastal flood
Not Applicable
Wildfire
Very Low
Drought
Relatively Low
Heat wave
Relatively Low
Hurricane
Relatively Low
Tornado
Relatively High
Earthquake
Relatively Moderate
Winter weather
Relatively High

#Who lives here

Population
14,306[3]
Median household income
$64,892[3]

#Migration

Household moves in and out of Knox County over a year, from IRS tax-return data.

Net migration
+1,491[5]
Moved in
14,671
Moved out
13,180

Schools

Open public schools in this ZIP, from the NCES Common Core of Data.

Public schools
4
Elementary
2
Middle
1
High
1
  • Gibbs High School

    High · Grades 9–12 · Knox County

    1,047 students

  • Gibbs Elementary

    Elementary · Grades PK–5 · Knox County

    951 students

  • Gibbs Middle School

    Middle · Grades 6–8 · Knox County

    614 students

  • Corryton Elementary

    Elementary · Grades K–5 · Knox County

    195 students

Run the numbers

Interactive calculators pre-filled with this ZIP's typical home value, rent, and property-tax rate. Edit any field to recompute.

Gross yield7.0%
Net yield (after ~40% expenses)4.2%
Annual rent$23,070

Gross and net yield are estimates based on the inputs and the selected expense ratio. Actual income and expenses will vary by property and market. Not investment advice.

Monthly payment$1,670
Loan principal$264,274
Down payment$66,068
Total interest paid$337,067

Estimated monthly payments include principal and interest only. Actual costs will include property tax, insurance, possibly PMI, and HOA fees not modeled here. Loan terms shown are estimates; consult a licensed lender for current rates and qualification.

Own : rent ratio1.06
Monthly cost to own$2,039
Monthly rent$1,923

Owning and renting are roughly even.

This calculator projects multi-year scenarios based on assumptions about appreciation, rent growth, and investment returns — none of which are guaranteed. Actual outcomes depend on variables this tool cannot know. Not financial or real estate advice.

#Metro ranking

Where this ZIP sits among others in its metro area.

Appreciation
84th percentile[1]
Rental yield
83rd percentile[2]
Property tax
17th percentile[3]

Frequently asked

How much is a home worth in ZIP code 37721?
The typical home in 37721 is worth $330,342, based on the Zillow Home Value Index.
Are home values rising in 37721?
Home values in 37721 are up 3.0% over the past year, and up 9.6% a year over five years.
What is the typical rent in 37721?
A typical home in 37721 rents for about $1,923 a month, a gross rental yield of 7.0%.
What is the property tax rate in 37721?
The effective property tax rate in 37721 is 0.3% — roughly $1,118 a year on a typical home.
Who lives in 37721?
ZIP code 37721 has a population of 14,306 and a median household income of $64,892.

#Comparable ZIPs

Same metro, nearest typical home value. Each card shows the comparable ZIP's headline numbers so you can scan at a glance.

  • Kingston, TN

    Typical home
    $330,882
    Gross yield
    3.8%
  • Blaine, TN

    Typical home
    $328,046
    Gross yield
  • Knoxville, TN

    Typical home
    $333,439
    Gross yield
    5.6%
  • Oak Ridge, TN

    Typical home
    $326,860
    Gross yield
    6.4%
  • TN

    Typical home
    $326,747
    Gross yield
  • Lenoir City, TN

    Typical home
    $335,064
    Gross yield
    5.9%

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