37921 ZIP Code
Knoxville, Tennessee
December 15, 2025
| ZIP Code: | 37921 |
| City/Town: | Knoxville |
| County: | Knox |
| State: | Tennessee |
| ZIP Type: | Standard |
| Population: | 28,571 |
| Median Household Income: | $55,517 |
| Per Capita Income: | $37,129 |
| Total Housing Units: | 12,507 |
| Median Home Value: | $172,300 |
| Land Area: | 15.9 sq miles
41.2 sq km |
| Water Area: | 0.0 sq miles
0.0 sq km |
| Coordinates: | 35.9783, -84.0019 |
Population Information (37921 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total Population: | 28,571 | -- | -- |
| Male: | 13,855 | 48.5% | 49.6% |
| Female: | 14,716 | 51.5% | 50.4% |
| Median Age: | 34.8 yrs | -- | 38.5 yrs |
| Under 5 years: | 1,881 | 6.6% | 5.7% |
| 5 to 9 years: | 1,837 | 6.4% | 6.0% |
| 10 to 14 years: | 2,097 | 7.3% | 6.5% |
| 15 to 19 years: | 1,863 | 6.5% | 6.6% |
| 20 to 24 years: | 1,677 | 5.9% | 6.7% |
| 25 to 34 years: | 5,006 | 17.5% | 13.7% |
| 35 to 44 years: | 3,525 | 12.3% | 12.9% |
| 45 to 54 years: | 3,677 | 12.9% | 12.4% |
| 55 to 59 years: | 1,654 | 5.8% | 6.5% |
| 60 to 64 years: | 1,545 | 5.4% | 6.4% |
| 65 to 74 years: | 2,426 | 8.5% | 9.7% |
| 75 to 84 years: | 1,128 | 3.9% | 4.8% |
| 85 years and over: | 255 | 0.9% | 2.0% |
Housing Information (37921 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Median home value: | $172,300 | -- | $281,900 |
| Median rooms: | 5.4 | -- | 5.5 |
| Median rent: | $1,083 / mo. | -- | $1,268 / mo. |
| Total housing units: | 12,507 | -- | -- |
| Occupied housing units: | 11,256 | 90.0% | 38.0% |
| Vacant housing units: | 1,251 | 10.0% | 4.6% |
| Housing tenure: | -- | -- | -- |
| Owner-occupied: | 6,947 | 61.7% | 64.8% |
| Renter-occupied: | 4,309 | 38.3% | 35.2% |
Educational Attainment (37921 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Population 25 years and over: | 19,216 | -- | -- |
| Less than 9th grade: | 1,042 | 5.4% | 4.7% |
| 9th to 12th grade, no diploma: | 1,440 | 7.5% | 6.1% |
| High school graduate: | 5,653 | 29.4% | 26.4% |
| Some college, no degree: | 3,927 | 20.4% | 19.7% |
| Associate degree: | 1,991 | 10.4% | 8.7% |
| Bachelor's degree: | 3,522 | 18.3% | 20.9% |
| Graduate or professional degree: | 1,641 | 8.5% | 13.7% |
| Percent high school graduate or higher: | -- | 87.1% | 89.1% |
| Percent bachelor's degree or higher: | -- | 26.9% | 34.3% |
Income Information (37921 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median household income: | $55,517 / yr. | $75,149 / yr. |
| Mean household income: | $71,151 / yr. | $105,833 / yr. |
| Median family income: | $67,012 / yr. | $92,646 / yr. |
| Per capita income: | $37,129 / yr. | $41,261 / yr. |
Employment (37921 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| In labor force: | 14,646 | -- | 63.5% |
| Employed: | 14,021 | 95.9% | 96.4% |
| Unemployed: | 607 | 4.1% | 5.3% |
| Not in labor force: | 7,847 | -- | -- |
| Class of Worker: | -- | -- | -- |
| Private wage and salary: | 11,509 | 82.1% | 79.7% |
| Government workers: | 1,965 | 14.0% | 14.2% |
| Self-employed: | 480 | 3.4% | 5.9% |
| Unpaid family workers: | 67 | 0.5% | 0.1% |
Race & Ethnicity (37921 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Race (one race): | -- | -- | -- |
| White: | 19,137 | 67.0% | 61.6% |
| Black or African American: | 5,932 | 20.8% | 12.4% |
| American Indian/Alaska Native: | 80 | 0.3% | 1.1% |
| Asian: | 239 | 0.8% | 6.0% |
| Native Hawaiian/Pacific Islander: | 0 | 0.0% | 0.2% |
| Some other race: | 791 | 2.8% | 8.4% |
| Two or more races: | 2,392 | 8.4% | 10.2% |
| Hispanic or Latino (any race): | 2,024 | 7.1% | 18.7% |
| Mexican: | 2,403 | 8.4% | 11.2% |
| Puerto Rican: | 1,477 | 5.2% | 1.8% |
| Cuban: | 99 | 0.3% | 0.7% |
| Other Hispanic or Latino: | 22 | 0.1% | 5.0% |
| Not Hispanic or Latino: | 805 | 2.8% | 81.1% |
Income Distribution (37921 zip code)
| Household Income | Households | Percent% | US AvgUS |
|---|---|---|---|
| Less than $10,000: | 860 | 7.6% | 4.9% |
| $10,000 to $14,999: | 383 | 3.4% | 3.8% |
| $15,000 to $24,999: | 1,038 | 9.2% | 7.0% |
| $25,000 to $34,999: | 1,075 | 9.6% | 7.4% |
| $35,000 to $49,999: | 1,709 | 15.2% | 10.7% |
| $50,000 to $74,999: | 2,190 | 19.5% | 16.1% |
| $75,000 to $99,999: | 1,235 | 11.0% | 12.8% |
| $100,000 to $149,999: | 1,873 | 16.6% | 17.1% |
| $150,000 to $199,999: | 512 | 4.5% | 8.8% |
| $200,000 or more: | 381 | 3.4% | 11.4% |
Commute to Work (37921 zip code)
| Commute Method | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Drove alone: | 10,623 | 75.8% | 67.8% |
| Carpooled: | 1,524 | 10.9% | 8.7% |
| Public transportation: | 162 | 1.2% | 4.2% |
| Walked: | 104 | 0.7% | 2.5% |
| Other means: | 117 | 0.8% | 0.9% |
| Worked from home: | 1,129 | 8.1% | 13.8% |
| Mean travel time to work: | 21.6 min | -- | 26.7 min |
Industry (37921 zip code)
| Industry Sector | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Agriculture, forestry, fishing, mining: | 29 | 0.2% | 1.6% |
| Construction: | 1,117 | 8.0% | 6.9% |
| Manufacturing: | 1,418 | 10.1% | 10.0% |
| Wholesale trade: | 398 | 2.8% | 2.4% |
| Retail trade: | 1,360 | 9.7% | 11.0% |
| Transportation, warehousing, utilities: | 988 | 7.0% | 5.8% |
| Information: | 341 | 2.4% | 1.9% |
| Finance, insurance, real estate: | 769 | 5.5% | 6.7% |
| Professional, scientific, management: | 1,723 | 12.3% | 12.1% |
| Education, health care, social services: | 3,079 | 22.0% | 23.3% |
| Arts, entertainment, food services: | 1,918 | 13.7% | 9.0% |
| Other services: | 462 | 3.3% | 4.7% |
| Public administration: | 419 | 3.0% | 4.7% |
Poverty Status (37921 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Poverty Rate: | -- | 16.9% | 8.8% |
| All people below poverty level: | -- | -- | -- |
| Under 18 years: | -- | -- | 16.3% |
| 18 to 64 years: | -- | -- | 11.0% |
| 65 years and over: | -- | -- | 10.3% |
Health Insurance (37921 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| With health insurance: | 25,945 | 90.8% | 91.3% |
| Private health insurance: | 18,115 | 63.4% | 67.6% |
| Public health coverage: | 10,897 | 38.1% | 35.9% |
| Without health insurance: | 2,574 | 9.0% | 8.7% |
Benefits & Assistance (37921 zip code)
| Households with: | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Earnings: | 8,516 | 75.7% | 77.4% |
| Social Security income: | 3,327 | 29.6% | 31.0% |
| Retirement income: | 2,133 | 18.9% | 21.8% |
| Supplemental Security Income (SSI): | 737 | 6.5% | 4.5% |
| Cash public assistance income: | 406 | 3.6% | 1.8% |
| SNAP (food stamps) benefits: | 1,904 | 16.9% | 11.4% |
Housing Types (37921 zip code)
| Structure Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| 1-unit, detached: | 8,759 | 70.0% | 61.4% |
| 1-unit, attached: | 658 | 5.3% | 6.1% |
| 2 units: | 204 | 1.6% | 3.4% |
| 3 or 4 units: | 678 | 5.4% | 4.3% |
| 5 to 9 units: | 746 | 6.0% | 4.6% |
| 10 to 19 units: | 739 | 5.9% | 4.3% |
| 20 or more units: | 305 | 2.4% | 9.9% |
| Mobile home: | 413 | 3.3% | 5.8% |
| Boat, RV, van, etc.: | 5 | 0.0% | 0.1% |
Year Structure Built (37921 zip code)
| Year Built | Units | Percent% | US AvgUS |
|---|---|---|---|
| Built 2020 or later: | 143 | 1.1% | 0.6% |
| Built 2010 to 2019: | 451 | 3.6% | 8.2% |
| Built 2000 to 2009: | 1,702 | 13.6% | 13.5% |
| Built 1990 to 1999: | 1,909 | 15.3% | 13.2% |
| Built 1980 to 1989: | 1,556 | 12.4% | 13.2% |
| Built 1970 to 1979: | 1,933 | 15.5% | 14.6% |
| Built 1960 to 1969: | 1,334 | 10.7% | 10.2% |
| Built 1950 to 1959: | 1,280 | 10.2% | 9.9% |
| Built 1940 to 1949: | 1,045 | 8.4% | 4.6% |
| Built 1939 or earlier: | 1,154 | 9.2% | 12.0% |
Bedrooms (37921 zip code)
| Number of Bedrooms | Units | Percent% | US AvgUS |
|---|---|---|---|
| No bedroom (studio): | 188 | 1.5% | 2.4% |
| 1 bedroom: | 445 | 3.6% | 3.0% |
| 2 bedrooms: | 4,047 | 32.4% | 9.1% |
| 3 bedrooms: | 6,136 | 49.1% | 15.9% |
| 4 bedrooms: | 1,440 | 11.5% | 18.8% |
| 5 or more bedrooms: | 251 | 2.0% | 17.6% |
Heating Fuel (37921 zip code)
| Fuel Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| Utility gas: | 2,683 | 23.8% | 47.1% |
| Bottled, tank, or LP gas: | 70 | 0.6% | 4.9% |
| Electricity: | 8,461 | 75.2% | 40.2% |
| Fuel oil, kerosene, etc.: | 11 | 0.1% | 4.2% |
| Coal or coke: | 0 | 0.0% | 0.1% |
| Wood: | 0 | 0.0% | 1.5% |
| Solar energy: | 0 | 0.0% | 0.1% |
| Other fuel: | 8 | 0.1% | 0.5% |
| No fuel used: | 23 | 0.2% | 0.2% |
Vehicles Available (37921 zip code)
| Vehicles | Households | Percent% | US AvgUS |
|---|---|---|---|
| No vehicle available: | 664 | 5.9% | 8.3% |
| 1 vehicle available: | 3,865 | 34.3% | 32.6% |
| 2 vehicles available: | 4,287 | 38.1% | 37.0% |
| 3 or more vehicles available: | 2,440 | 21.7% | 22.1% |
Home Value Distribution (37921 zip code)
| Value Range | Owner Units | Percent% | US AvgUS |
|---|---|---|---|
| Less than $50,000: | 421 | 6.1% | 5.7% |
| $50,000 to $99,999: | 592 | 8.5% | 7.8% |
| $100,000 to $149,999: | 1,288 | 18.5% | 9.2% |
| $150,000 to $199,999: | 2,095 | 30.2% | 10.8% |
| $200,000 to $299,999: | 1,762 | 25.4% | 19.9% |
| $300,000 to $499,999: | 659 | 9.5% | 24.1% |
| $500,000 to $999,999: | 91 | 1.3% | 17.0% |
| $1,000,000 or more: | 39 | 0.6% | 5.6% |
Housing Costs (37921 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median owner costs (with mortgage): | $1,214 / mo. | $1,828 / mo. |
| Median owner costs (no mortgage): | $453 / mo. | $584 / mo. |
| Median gross rent: | $1,083 / mo. | $1,268 / mo. |
| Average household size (owner-occupied): | 2.60 | 2.53 |
| Average household size (renter-occupied): | 2.41 | 2.38 |
Households (37921 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total households: | 11,256 | -- | -- |
| Married-couple households: | 4,760 | 42.3% | 47.5% |
| Cohabiting couple households: | 2,029 | 18.0% | 7.0% |
| Male householder, no spouse: | 2,018 | 17.9% | 5.4% |
| Female householder, no spouse: | 3,669 | 32.6% | 12.7% |
| Householder living alone: | 3,900 | 34.6% | 28.6% |
| 65 years and over living alone: | 3,096 | 27.5% | 11.8% |
| Average household size: | 2.53 | -- | 2.53 |
| Average family size: | 3.16 | -- | -- |
Marital Status (37921 zip code)
| Population 15 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 10,746 | -- | -- |
| Never married: | 3,783 | 35.2% | 37.0% |
| Now married: | 5,141 | 47.8% | 49.5% |
| Separated: | 314 | 2.9% | 1.5% |
| Widowed: | 1,341 | 12.5% | 2.6% |
| Divorced: | 3,634 | 33.8% | 9.3% |
School Enrollment (37921 zip code)
| Population 3 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Enrolled in school: | 7,319 | -- | -- |
| Nursery school, preschool: | 414 | 5.7% | 5.8% |
| Kindergarten: | 355 | 4.9% | 5.0% |
| Elementary school (grades 1-8): | 3,157 | 43.1% | 40.5% |
| High school (grades 9-12): | 1,702 | 23.3% | 21.4% |
| College or graduate school: | 1,691 | 23.1% | 27.3% |
Veterans & Disability (37921 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Civilian population 18 years and over: | 21,517 | -- | -- |
| Veterans: | 1,790 | 8.3% | 6.3% |
| Civilian noninstitutionalized population: | 28,519 | -- | -- |
| With a disability: | 4,493 | 15.8% | 13.4% |
| Under 18 with disability: | 513 | 11.4% | 5.8% |
| 18 to 64 with disability: | 2,380 | 53.0% | 10.4% |
| 65 and over with disability: | 1,600 | 35.6% | 33.4% |
Mobility (Residence 1 Year Ago) (37921 zip code)
| Population 1 year and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Same house: | 24,033 | 84.1% | 86.9% |
| Different house: | 4,139 | 14.5% | 13.1% |
| Same county: | 2,342 | 56.6% | 7.0% |
| Different county: | 1,685 | 40.7% | 3.2% |
| Different state: | 913 | 22.1% | 2.5% |
| Abroad: | 112 | 2.7% | 0.4% |
Place of Birth (37921 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Native born: | 26,740 | 93.6% | 86.2% |
| Foreign born: | 343 | 1.2% | 13.9% |
| Naturalized citizen: | 1,831 | 533.8% | 52.7% |
| Not a citizen: | 1,831 | 533.8% | 47.3% |
| Foreign-born by region: | -- | -- | -- |
| Europe: | 1,831 | 533.8% | 10.5% |
| Asia: | 237 | 69.1% | 31.3% |
| Africa: | 338 | 98.5% | 5.5% |
| Oceania: | 0 | 0.0% | 0.5% |
| Latin America: | 1,055 | 307.6% | 50.0% |
| Northern America: | 40 | 11.7% | 2.2% |
Language Spoken at Home (37921 zip code)
| Population 5 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 26,690 | -- | -- |
| English only: | 23,996 | 89.9% | 78.3% |
| Language other than English: | 2,694 | 10.1% | 21.5% |
| By language: | -- | -- | -- |
| Spanish: | 1,655 | 6.2% | 13.3% |
| Other Indo-European languages: | 399 | 1.5% | 3.5% |
| Asian/Pacific Island languages: | 68 | 0.3% | 3.5% |
| Other languages: | 572 | 2.1% | 1.0% |
Computers & Internet (37921 zip code)
| Households | Percent% | US AvgUS | |
|---|---|---|---|
| Households with a computer: | 11,256 | 100.0% | 93.1% |
| Households with broadband internet: | 10,618 | 94.3% | 89.4% |
Knoxville, TN37921