Postal Codes

37931 ZIP Code

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ZIP code 37931 covers Knoxville, Tennessee, with a population of about 31,149 and a median household income of $91,284.

Population
31,1491,098 per square mile
Median age
38.20.5 points below the US average
Median household income
$91,2841.4× the Tennessee median
Poverty rate
6.5%5.9 points below the US average
Typical home value
$438,568up 41.1% in five years
Median rent
$1,4501.3× the Tennessee median
Degree or higher
44.8%9.8 points above the US average
Homeownership
71%6 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
402

Where 37931 is

Knoxville, Tennessee — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population31,149
Median age38.2
Family households68.9%
Born outside the US4.7%
Speaks a language other than English at home7%
White (non-Hispanic)83.4%
Black (non-Hispanic)3.9%
Asian (non-Hispanic)1.9%
Hispanic or Latino6.2%
Veterans9%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$91,284
Income per person$45,016
Poverty rate6.5%
Households on SNAP or cash assistance5.6%

Household income distribution

Under $10k2.8%
$10–15k2.1%
$15–20k2.5%
$20–25k2.4%
$25–30k2.6%
$30–35k1.6%
$35–40k3.3%
$40–45k1.5%
$45–50k3.4%
$50–60k6.8%
$60–75k11.0%
$75–100k15.9%
$100–125k13.7%
$125–150k8.1%
$150–200k10.4%
$200k or more12.1%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed15,550
Mean adjusted gross income$84,784
Returns declaring $200,000 or more6.4%
Returns, under $25k22.4%
Returns, $25k–$50k20.6%
Returns, $50k–$75k15.0%
Returns, $75k–$100k11.6%
Returns, $100k–$200k24.0%
Returns, $200k or more6.4%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$317,100
Median gross rent$1,450
Rent as a share of household income24.1%
Owner-occupied71%
Vacant homes4.7%
Median year built1997

What the homes are

Detached house69.6%
Attached house7.4%
2 to 4 units2.8%
5 to 19 units9.9%
20 or more units4.4%
Mobile home5.9%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$438,568as of 2026-07
Typical home value, 1 yearup 1.4%
Typical home value, 5 yearsup 41.1%
Typical home value, 10 yearsup 107.1%
Typical asking rent$1,715as of 2026-07
Typical asking rent, 1 yeardown 1.9%
Typical home value since 2000
200020132026$438,568$140,587

$140,587 in 2000 to $438,568 in 2026.

Typical asking rent
202220242026$1,756$1,668

$1,668 in 2022 to $1,715 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.8%
Bachelor's degree or higher44.8%
High school diploma or higher93.6%
Works from home15.8%
Drives to work alone78.6%
Takes public transport0.2%
Commutes 45 minutes or more7.3%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity32.9% 0.5 pts below the national average of 33.4%
Diagnosed diabetes11% 1 pts below the national average of 12%
Currently smokes14.4% 1.2 pts above the national average of 13.2%
High blood pressure35.3% 1.2 pts above the national average of 34.1%
Fair or poor general health17.5% 2.8 pts below the national average of 20.3%
No health insurance (18–64)9% 2.3 pts below the national average of 11.3%
Depression30.4% 8.5 pts above the national average of 21.9%
No leisure-time physical activity21.4% 4 pts below the national average of 25.4%
Arthritis28.5% 3.4 pts above the national average of 25.1%
Binge drinking16.8% 0.8 pts above the national average of 16%
Taking blood pressure medication74.6% same as the national average of 74.7%
Cancer (non-skin)8.5% 0.8 pts above the national average of 7.7%
Current asthma10.4% same as the national average of 10.4%
Coronary heart disease5.7% 0.5 pts below the national average of 6.2%
Routine check-up in past year77.8% 1.1 pts above the national average of 76.7%
Cholesterol screening88% 2.1 pts above the national average of 85.9%
Cognitive disability15.4% 0.6 pts above the national average of 14.8%
Colorectal screening68.1% 3.8 pts above the national average of 64.3%
COPD6.7% same as the national average of 6.6%
Visited a dentist63.8% 2.5 pts above the national average of 61.3%
Any disability30.3% same as the national average of 30.7%
Hearing disability6.7% same as the national average of 6.7%
High cholesterol36.2% same as the national average of 36.2%
Independent living disability7.5% 0.9 pts below the national average of 8.4%
Mammography use77.9% 2 pts above the national average of 75.9%
Poor mental health (14+ days)18.2% 1.4 pts above the national average of 16.8%
Mobility disability12.8% 1.2 pts below the national average of 14%
Poor physical health (14+ days)12.7% 0.8 pts below the national average of 13.5%
Self-care disability3% 1 pts below the national average of 4%
Sleeps under 7 hours34% 2.4 pts below the national average of 36.4%
Stroke2.9% 0.5 pts below the national average of 3.4%
All natural teeth lost9.9% 3.1 pts below the national average of 13%
Vision disability4% 1.6 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments402
People employed6,642
Annual payroll$334,921,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 40.2% of US census tracts
FEMA ratingVery Low to Relatively Moderate across the 11 census tracts this ZIP code covers
Expected annual loss51 out of 100
Community resilience48.5 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Landslide93Relatively Low at its worst in this ZIP code
Lightning82.2Relatively High at its worst in this ZIP code
Earthquake76.5Relatively Moderate at its worst in this ZIP code
Winter weather75.6Relatively High at its worst in this ZIP code
Ice storm74.3Relatively Moderate at its worst in this ZIP code
Tornado73.4Relatively High at its worst in this ZIP code
Cold wave65.8Relatively High at its worst in this ZIP code
Strong wind57.6Relatively Moderate at its worst in this ZIP code
Wildfire57.6Relatively Low at its worst in this ZIP code
River flooding49.9Relatively Moderate at its worst in this ZIP code
Hurricane44.7Very Low at its worst in this ZIP code
Hail41.7Relatively Low at its worst in this ZIP code
Heat wave14.1Relatively Low at its worst in this ZIP code
Compared with Tennessee and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPTennesseeUnited States
Median household income$91,284$67,097$78,538
Income per person$45,016$37,866$43,289
Poverty rate6.5%13.8%12.4%
Median home value$317,100$256,800$303,400
Median gross rent$1,450$1,122$1,348
Homeownership71%67%65%
Bachelor's degree or higher44.8%30.4%35%
Unemployment rate2.8%4.7%5.2%
Works from home15.8%11.4%13.5%
Born outside the US4.7%5.9%13.9%
Median age38.238.938.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationOAK RIDGE ASOS, TN US11.1 km away
Rain in a year56 in

Average high and low by month

January48.1°F / 30°F5.07 in rain
February53°F / 33°F5.59 in rain
March62.2°F / 40°F5.12 in rain
April72.1°F / 47.9°F5.2 in rain
May79.7°F / 56.9°F4.07 in rain
June86.1°F / 65.2°F4.55 in rain
July89.1°F / 69°F5.54 in rain
August88.4°F / 67.7°F3.46 in rain
September82.8°F / 61.2°F3.83 in rain
October72.1°F / 49°F3.12 in rain
November60.1°F / 38.3°F4.62 in rain
December50.8°F / 33.2°F5.36 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket75% of this ZIP code's area
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 2 school districts, so the address decides which one, not the ZIP code.

Knox County School District91.3% of this ZIP code's land area
Anderson County School District8.7% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability32more vulnerable than 32% of US census tracts
Socioeconomic status31more vulnerable than 31% of US census tracts
Household characteristics33more vulnerable than 33% of US census tracts
Racial and ethnic minority status23more vulnerable than 23% of US census tracts
Housing type and transport48more vulnerable than 48% of US census tracts
Walkability5.8 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

37932 Knoxville, TN7 km away
37923 Knoxville, TN7.7 km away
37849 Powell, TN9.2 km away
37909 Knoxville, TN10.1 km away
37921 Knoxville, TN10.6 km away
37716 Clinton, TN12.2 km away
37912 Knoxville, TN12.9 km away
37830 Oak Ridge, TN13.1 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Knox County91.3% of this ZIP code's land area
Anderson County8.7% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area28.37 sq mi
Water area0.56 sq mi
Population density1,098 people per sq mi
Latitude, longitude35.9924, -84.1201

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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