Postal Codes

37923 ZIP Code

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ZIP code 37923 covers Knoxville, Tennessee, with a population of about 30,874 and a median household income of $70,046.

Population
30,8742,785 per square mile
Median age
36.42.3 points below the US average
Median household income
$70,046about the Tennessee median
Poverty rate
11.8%0.6 points below the US average
Typical home value
$408,144up 44.8% in five years
Median rent
$1,3031.2× the Tennessee median
Degree or higher
46.7%11.7 points above the US average
Homeownership
59.8%5.2 points below the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
906

Where 37923 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

Population30,874
Median age36.4
Family households61.2%
Born outside the US12.5%
Speaks a language other than English at home15%
White (non-Hispanic)75.9%
Black (non-Hispanic)6.7%
Asian (non-Hispanic)3.4%
Hispanic or Latino9.8%
Veterans5.5%
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$70,046
Income per person$39,411
Poverty rate11.8%
Households on SNAP or cash assistance6.8%

Household income distribution

Under $10k4.3%
$10–15k2.7%
$15–20k1.0%
$20–25k3.4%
$25–30k3.8%
$30–35k5.3%
$35–40k5.9%
$40–45k2.4%
$45–50k3.4%
$50–60k8.0%
$60–75k13.1%
$75–100k12.3%
$100–125k11.3%
$125–150k8.2%
$150–200k8.4%
$200k or more6.5%

Income as declared to the IRS

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

Tax returns filed14,990
Mean adjusted gross income$75,741
Returns declaring $200,000 or more5.4%
Returns, under $25k24.9%
Returns, $25k–$50k25.4%
Returns, $50k–$75k15.7%
Returns, $75k–$100k10.8%
Returns, $100k–$200k17.7%
Returns, $200k or more5.4%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$292,500
Median gross rent$1,303
Rent as a share of household income30.7%
Owner-occupied59.8%
Vacant homes8.8%
Median year built1985

What the homes are

Detached house49.3%
Attached house9.2%
2 to 4 units8.9%
5 to 19 units20.8%
20 or more units8.4%
Mobile home3.4%
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$408,144as of 2026-07
Typical home value, 1 yearup 0.8%
Typical home value, 5 yearsup 44.8%
Typical home value, 10 yearsup 119.6%
Typical asking rent$1,639as of 2026-07
Typical asking rent, 1 yeardown 0.5%
Typical asking rent, 5 yearsup 22.3%
Typical home value since 2000
200020132026$408,144$125,720

$125,720 in 2000 to $408,144 in 2026.

Typical asking rent
202120232026$1,647$1,341

$1,341 in 2021 to $1,639 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.5%
Bachelor's degree or higher46.7%
High school diploma or higher93.3%
Works from home15.5%
Drives to work alone75.5%
Takes public transport0.1%
Commutes 45 minutes or more5.5%
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 diabetes11.4% 0.6 pts below the national average of 12%
Currently smokes13.9% 0.7 pts above the national average of 13.2%
High blood pressure35.4% 1.3 pts above the national average of 34.1%
Fair or poor general health18.4% 1.9 pts below the national average of 20.3%
No health insurance (18–64)10.1% 1.2 pts below the national average of 11.3%
Depression30.2% 8.3 pts above the national average of 21.9%
No leisure-time physical activity22.3% 3.1 pts below the national average of 25.4%
Arthritis27.9% 2.8 pts above the national average of 25.1%
Binge drinking16.3% same as the national average of 16%
Taking blood pressure medication74.3% same as the national average of 74.7%
Cancer (non-skin)8.4% 0.7 pts above the national average of 7.7%
Current asthma10.4% same as the national average of 10.4%
Coronary heart disease5.9% same as the national average of 6.2%
Routine check-up in past year77.8% 1.1 pts above the national average of 76.7%
Cholesterol screening86.8% 0.9 pts above the national average of 85.9%
Cognitive disability15.9% 1.1 pts above the national average of 14.8%
Colorectal screening69.2% 4.9 pts above the national average of 64.3%
COPD6.8% same as the national average of 6.6%
Visited a dentist63.9% 2.6 pts above the national average of 61.3%
Any disability31.5% 0.8 pts above the national average of 30.7%
Hearing disability6.9% same as the national average of 6.7%
High cholesterol35.7% 0.5 pts below the national average of 36.2%
Independent living disability8.1% same as the national average of 8.4%
Mammography use77.4% 1.5 pts above the national average of 75.9%
Poor mental health (14+ days)18.4% 1.6 pts above the national average of 16.8%
Mobility disability13.2% 0.8 pts below the national average of 14%
Poor physical health (14+ days)12.8% 0.7 pts below the national average of 13.5%
Self-care disability3.2% 0.8 pts below the national average of 4%
Sleeps under 7 hours33.6% 2.8 pts below the national average of 36.4%
Stroke3% same as the national average of 3.4%
All natural teeth lost10.5% 2.5 pts below the national average of 13%
Vision disability4.5% 1.1 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments906
People employed16,128
Annual payroll$905,822,000
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 49.3% of US census tracts
FEMA ratingVery Low to Relatively Moderate across the 13 census tracts this ZIP code covers
Expected annual loss49.7 out of 100
Community resilience49.2 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.

Lightning84.9Relatively High at its worst in this ZIP code
Earthquake83Relatively High at its worst in this ZIP code
Landslide82.5Relatively Low at its worst in this ZIP code
Winter weather78.8Relatively High at its worst in this ZIP code
Ice storm78.6Relatively Moderate at its worst in this ZIP code
Tornado77.6Relatively High at its worst in this ZIP code
Cold wave67.7Relatively Moderate at its worst in this ZIP code
Strong wind59.5Relatively Moderate at its worst in this ZIP code
River flooding47Relatively Moderate at its worst in this ZIP code
Hurricane46.4Very Low at its worst in this ZIP code
Hail42.3Relatively Low at its worst in this ZIP code
Wildfire33.4Relatively Low at its worst in this ZIP code
Heat wave17.4Relatively 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$70,046$67,097$78,538
Income per person$39,411$37,866$43,289
Poverty rate11.8%13.8%12.4%
Median home value$292,500$256,800$303,400
Median gross rent$1,303$1,122$1,348
Homeownership59.8%67%65%
Bachelor's degree or higher46.7%30.4%35%
Unemployment rate4.5%4.7%5.2%
Works from home15.5%11.4%13.5%
Born outside the US12.5%5.9%13.9%
Median age36.438.938.7
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 stationKNOXVILLE EXP STN, TN US11.4 km away
Rain in a year56 in

Average high and low by month

January47.9°F / 26.4°F5.23 in rain
February52.5°F / 29.3°F5.12 in rain
March61.3°F / 35.7°F5.28 in rain
April70.8°F / 43.8°F5.25 in rain
May78.5°F / 53.8°F4.53 in rain
June85.5°F / 62°F3.96 in rain
July88.3°F / 66.2°F5.82 in rain
August87.9°F / 64.8°F3.42 in rain
September82.9°F / 58.6°F4.13 in rain
October72.3°F / 45.7°F3.05 in rain
November60.6°F / 34.7°F4.1 in rain
December51.1°F / 29.7°F5.91 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 supermarket97% of this ZIP code's area
No vehicle and far from a supermarket15% of this ZIP code's area
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%.

Knox County School District100% 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 vulnerability35more vulnerable than 35% of US census tracts
Socioeconomic status40more vulnerable than 40% of US census tracts
Household characteristics41more vulnerable than 41% of US census tracts
Racial and ethnic minority status33more vulnerable than 33% of US census tracts
Housing type and transport33more vulnerable than 33% of US census tracts
Walkability7.7 out of 20Below average
Nearby ZIP codes

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

37909 Knoxville, TN4.9 km away
37932 Knoxville, TN6.5 km away
37919 Knoxville, TN6.8 km away
37931 Knoxville, TN7.7 km away
37921 Knoxville, TN8.3 km away
37922 Knoxville, TN9.2 km away
37934 Knoxville, TN10.9 km away
37930 Knoxville, TN11.5 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 County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area11.09 sq mi
Water area0.01 sq mi
Population density2,785 people per sq mi
Latitude, longitude35.9331, -84.0761

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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