Zip code 37921: Knoxville, Tennessee

Q: What city is zip code 37921?

37921 is assigned to Knoxville, Tennessee. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 37921 in?

37921 is in Knox County, Tennessee.

Q: What is the population of 37921?

About 28,717 people live in 37921, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 37921?

The median household income in 37921 is $60,013.

Q: What zip codes are near 37921?

The closest zip codes to 37921 are 37912, 37909, 37927, 37928, 37933.

Residential delivery areaKnox CountyEastern Time

Population

28,717

Median household income

$60K

U.S. $81K

Median home value

$226K

U.S. $333K

Median rent

$1,233/mo

U.S. $1,413

Median age

34.6

U.S. 38.9

Land area

16 sq mi

1,806 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 37921

37921 is a suburban zip code in Knoxville, Tennessee (Knox County), covering 16 sq mi of land. About 28,717 people live here, or 1,806 per square mile. The median resident is 34.6 years old, compared with 38.9 nationally.

The median household earns $60,013 a year, 26% below the national median of $80,734. 17.2% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $226,300, or 3.8 years of median household income (U.S.: 4.1 years), which makes homes about as affordable as the national average for local earners. 60% of occupied homes are lived in by their owners, and renters pay a median of $1,233 a month.

26% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 20 minutes each way, and 12% of workers work from home. The most common jobs among working residents are in management; office and administrative support; and food service.

How 37921 compares

Sorted from highest to lowest national percentile

Uninsured rate11.5%
78th
U.S. 8.4% · TN 10%181st of 607 in TN
Poverty rate17.2%
77th
U.S. 12.5% · TN 13.8%205th of 600 in TN
Housing vacancy10.2%
72nd
U.S. 10.1% · TN 10.2%341st of 602 in TN
Veterans6.6%
61st
U.S. 6.2% · TN 7.3%353rd of 607 in TN
Residents under 1823.3%
61st
U.S. 22% · TN 22.2%190th of 608 in TN
Rent-burdened renters53.2%
60th
U.S. 51.1% · TN 48.8%148th of 584 in TN
Diversity index54
59th
U.S. 61.4 · TN 46.456th of 608 in TN
Population density1,806/sq mi
55th
U.S. 95/sq mi · TN 171/sq mi57th of 608 in TN
Population28,717
47th
U.S. 334,922,499 · TN 7,066,38375th of 608 in TN
Work from home11.5%
43rd
U.S. 15.1% · TN 12.9%216th of 608 in TN
Tech workers2.4%
41st
U.S. 3.8% · TN 2.8%191st of 607 in TN
Government workers12.5%
40th
U.S. 14.5% · TN 13.7%385th of 607 in TN
Median gross rent$1,233
39th
U.S. $1,413 · TN $1,189111th of 515 in TN
Foreign-born residents7%
38th
U.S. 14.1% · TN 6.1%81st of 608 in TN
Income inequality (Gini)0.422
38th
U.S. 0.483 · TN 0.476351st of 600 in TN
Bachelor's degree or higher26.3%
37th
U.S. 35.7% · TN 31.1%171st of 604 in TN
Homeownership rate59.8%
32nd
U.S. 65.2% · TN 66.9%519th of 600 in TN
Unemployment rate3.9%
32nd
U.S. 5.2% · TN 4.7%319th of 607 in TN
Healthcare workers8.3%
32nd
U.S. 9.7% · TN 9.6%368th of 607 in TN
Median home value$226,300
27th
U.S. $332,700 · TN $286,700261st of 590 in TN
Residents 65 and older12.9%
23rd
U.S. 17.2% · TN 17.1%527th of 608 in TN
Per capita income$30,928
21st
U.S. $44,673 · TN $39,437348th of 608 in TN
Median household income$60,013
20th
WeaknessU.S. $80,734 · TN $69,595319th of 590 in TN
Median age34.6
19th
U.S. 38.9 · TN 38.9535th of 608 in TN
Median earnings per worker$39,054
19th
WeaknessU.S. $49,666 · TN $45,229414th of 606 in TN
Average commute20 min
13th
StrengthU.S. 26.4 min · TN 25.7 min534th of 597 in TN
Broadband access85.2%
13th
WeaknessU.S. 91% · TN 89.2%355th of 600 in TN
Self-employed workers6.3%
12th
U.S. 10% · TN 9.8%497th of 607 in TN

Measure	37921	Knox	TN	U.S.	National percentile	Rank in TN
Uninsured rate	11.5%	8.3%	10%	8.4%	78th	181st of 607
Poverty rate	17.2%	12.2%	13.8%	12.5%	77th	205th of 600
Housing vacancy	10.2%	8%	10.2%	10.1%	72nd	341st of 602
Veterans	6.6%	6.7%	7.3%	6.2%	61st	353rd of 607
Residents under 18	23.3%	20.9%	22.2%	22%	61st	190th of 608
Rent-burdened renters	53.2%	50.1%	48.8%	51.1%	60th	148th of 584
Diversity index	54	36.2	46.4	61.4	59th	56th of 608
Population density	1,806/sq mi	972/sq mi	171/sq mi	95/sq mi	55th	57th of 608
Population	28,717	494,148	7,066,383	334,922,499	47th	75th of 608
Work from home	11.5%	14.4%	12.9%	15.1%	43rd	216th of 608
Tech workers	2.4%	3.4%	2.8%	3.8%	41st	191st of 607
Government workers	12.5%	14.4%	13.7%	14.5%	40th	385th of 607
Median gross rent	$1,233	$1,261	$1,189	$1,413	39th	111th of 515
Foreign-born residents	7%	6.5%	6.1%	14.1%	38th	81st of 608
Income inequality (Gini)	0.422	0.480	0.476	0.483	38th	351st of 600
Bachelor's degree or higher	26.3%	41%	31.1%	35.7%	37th	171st of 604
Homeownership rate	59.8%	65.2%	66.9%	65.2%	32nd	519th of 600
Unemployment rate	3.9%	3.5%	4.7%	5.2%	32nd	319th of 607
Healthcare workers	8.3%	9.9%	9.6%	9.7%	32nd	368th of 607
Median home value	$226,300	$320,900	$286,700	$332,700	27th	261st of 590
Residents 65 and older	12.9%	16.3%	17.1%	17.2%	23rd	527th of 608
Per capita income	$30,928	$43,351	$39,437	$44,673	21st	348th of 608
Median household incomeWeakness	$60,013	$74,222	$69,595	$80,734	20th	319th of 590
Median age	34.6	37.4	38.9	38.9	19th	535th of 608
Median earnings per workerWeakness	$39,054	$45,855	$45,229	$49,666	19th	414th of 606
Average commuteStrength	20 min	22.2 min	25.7 min	26.4 min	13th	534th of 597
Broadband accessWeakness	85.2%	89.5%	89.2%	91%	13th	355th of 600
Self-employed workers	6.3%	8.3%	9.8%	10%	12th	497th of 607

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

17%

5–17

10%

18–24

17%

25–34

12%

35–44

13%

45–54

11%

55–64

65–74

75+

Median age

34.6

Under 18

23.3%

65 and over

12.9%

Race and ethnicity

White64%
Black20%
Hispanic10%
Asian0.9%
Native American0.0%
Pacific Islander0.0%
Other0.1%
Multiracial5%

Diversity index

U.S. 61.4

Foreign-born

U.S. 14.1%

Born in state

64.4%

Language spoken at home (households)

English only

88%

Spanish

Other Indo-European

Asian / Pacific

Other

Households

Households: 11,634
Average household size: 2.5
Family households: 59.5%
Married couples: 36.5%
Living alone: 30.7%
Veterans (of adults): 6.6%
Male / female: 47% / 53%

Income and poverty

Household income distribution

<$25k

19%

$25–50k

24%

$50–75k

19%

$75–100k

11%

$100–150k

20%

$150–200k

$200k+

Median household income

37921

$60,013

Knox Co.

$74,222

Tennessee

$69,595

United States

$80,734

Per capita income

$30,928

U.S. $44,673

Poverty rate

17.2%

U.S. 12.5%

Households earning $150K+

8.1%

U.S. 23%

Income inequality (Gini)

0.422

U.S. 0.483

Housing

Median home value

37921

$226,300

Knox Co.

$320,900

Tennessee

$286,700

United States

$332,700

Median gross rent

37921

$1,233

Knox Co.

$1,261

Tennessee

$1,189

United States

$1,413

Types of housing

Single-family

75%

2–4 units

5–19 units

11%

20+ units

Mobile home

Boat, RV, van

0.1%

Housing units: 12,957
Owner-occupied: 59.8%
Vacant: 10.2%
Median year built: 1978
Median rooms: 5.4
Renters paying 30%+ of income: 53.2%
Renters paying 50%+ of income: 26.5%
Home value to income: 3.8× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

73%

Carpooled

12%

Transit

0.9%

Walked

Bicycle

Worked from home

11%

Other

0.9%

Commute time (one way)

<10 min

12%

10–19

34%

20–29

36%

30–44

14%

45–59

60+

Average commute

20 min

U.S. 26.4 min

Unemployment

3.9%

U.S. 5.2%

In labor force

67%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Management

11%

Office and admin

11%

Food service

10%

Construction and repair

Healthcare

Sales

Transportation and moving

Cleaning and personal care

Production

Education

Business and finance

Engineering and science

Legal and social services

Computer and math

Arts, media and sports

Police and fire

0.8%

Farming, fishing and forestry

Industries

Health care and social assistance

13%

Restaurants and hotels

13%

Manufacturing

11%

Construction

Retail

Education

Transportation, warehousing and utilities

Other services

Finance, insurance and real estate

Admin, support and management

Professional and technical services

Wholesale

Public administration

Information

Arts and recreation

Agriculture and mining

Median earnings per worker

$39,054

U.S. $49,666

Self-employed

6.3%

U.S. 10%

Government workers

12.5%

U.S. 14.5%

Nonprofit workers

8.9%

U.S. 8.8%

Median earnings by type of work

Type of work	37921	U.S.
Management, business, science and arts	$59,071	$74,888
Service	$21,167	$26,804
Sales and office	$36,671	$40,476
Construction and maintenance	$37,921	$49,199
Production and transportation	$36,317	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

14%

High school

30%

Some college

20%

Associate's

10%

Bachelor's

18%

Graduate

High school graduate or higher: 85.9%
Bachelor's degree or higher: 26.3%
Graduate or professional degree: 8.3%
Households with broadband: 85.2%
Cable, fiber or DSL: 68.7%
No internet access: 11.8%
Without health insurance: 11.5%
Limited-English households: 3.1%

Geography

City (USPS): Knoxville
State: Tennessee
County: Knox County
Center point: 35.9783° N, 84.0019° W
Land area: 16 sq mi
Water area: under 0.1 sq mi
Time zone: Eastern Time (UTC-5, UTC-4 in summer)
Zip type: Residential delivery area

Cities and towns within this zip

Knoxville78% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 37921

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
37912	Knoxville, TN	2.3 mi	21,505	$47,416	$210,900
37909	Knoxville, TN	2.4 mi	16,774	$66,984	$312,500
37927	Knoxville, TN · PO box	2.4 mi	—	—	—
37928	Knoxville, TN · PO box	2.4 mi	—	—	—
37933	Knoxville, TN · PO box	2.4 mi	—	—	—
37939	Knoxville, TN · PO box	2.4 mi	—	—	—
37940	Knoxville, TN · PO box	2.4 mi	—	—	—
37950	Knoxville, TN · PO box	2.4 mi	—	—	—
37996	Knoxville, TN · PO box	2.4 mi	—	—	—
37997	Knoxville, TN · PO box	2.4 mi	—	—	—
37916	Knoxville, TN	4.2 mi	15,583	$14,925	$269,800
37919	Knoxville, TN	4.4 mi	31,754	$72,645	$526,800

Zip codes like 37921 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 37921

What city is zip code 37921?

37921 is assigned to Knoxville, Tennessee. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 37921 in?

37921 is in Knox County, Tennessee.

What is the population of 37921?

About 28,717 people live in 37921, according to the Census Bureau's American Community Survey.

What time zone is 37921 in?

37921 is in Eastern Time.

What is the median household income in 37921?

The median household income in 37921 is $60,013.

What zip codes are near 37921?

The closest zip codes to 37921 are 37912, 37909, 37927, 37928, 37933.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 37921, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.