Postal Codes

37742 ZIP Code

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ZIP code 37742 covers Greenback, Tennessee, with a population of about 7,568 and a median household income of $87,516.

Population
7,568153 per square mile
Median age
38.3about the US average
Median household income
$87,5161.3× the Tennessee median
Poverty rate
9.4%3 points below the US average
Typical home value
$445,536up 41.7% in five years
Median rent
$1,0516% below the Tennessee median
Degree or higher
17.2%17.8 points below the US average
Homeownership
90.8%25.8 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
54

Where 37742 is

Greenback, 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

Population7,568
Median age38.3
Family households74.2%
Born outside the US0.8%
Speaks a language other than English at home0.9%
White (non-Hispanic)97.3%
Black (non-Hispanic)0.4%
Asian (non-Hispanic)0.6%
Hispanic or Latino0.5%
Veterans8.6%
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$87,516
Income per person$37,025
Poverty rate9.4%
Households on SNAP or cash assistance4.9%

Household income distribution

Under $10k4.3%
$10–15k1.0%
$15–20k3.9%
$20–25k1.2%
$25–30k1.2%
$30–35k3.0%
$35–40k0.0%
$40–45k9.2%
$45–50k1.8%
$50–60k7.2%
$60–75k8.5%
$75–100k15.4%
$100–125k13.2%
$125–150k16.9%
$150–200k5.4%
$200k or more7.9%

Income as declared to the IRS

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

Tax returns filed3,060
Mean adjusted gross income$79,273
Returns declaring $200,000 or more5.9%
Returns, under $25k23.9%
Returns, $25k–$50k23.2%
Returns, $50k–$75k16.0%
Returns, $75k–$100k11.1%
Returns, $100k–$200k19.9%
Returns, $200k or more5.9%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$270,000
Median gross rent$1,051
Rent as a share of household income22.3%
Owner-occupied90.8%
Vacant homes9.5%
Median year built1994

What the homes are

Detached house79.1%
Attached house0.6%
Mobile home20.2%
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$445,536as of 2026-07
Typical home value, 1 yearup 3.5%
Typical home value, 5 yearsup 41.7%
Typical home value, 10 yearsup 122.6%
Typical home value since 2000
200020132026$445,536$110,048

$110,048 in 2000 to $445,536 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate3.4%
Bachelor's degree or higher17.2%
High school diploma or higher91.8%
Works from home5.9%
Drives to work alone89.4%
Takes public transport0%
Commutes 45 minutes or more22.4%
Health

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

Obesity36.7% 3.3 pts above the national average of 33.4%
Diagnosed diabetes13.9% 1.9 pts above the national average of 12%
Currently smokes17.2% 4 pts above the national average of 13.2%
High blood pressure42.5% 8.4 pts above the national average of 34.1%
Fair or poor general health21.7% 1.4 pts above the national average of 20.3%
No health insurance (18–64)9.7% 1.6 pts below the national average of 11.3%
Depression28.7% 6.8 pts above the national average of 21.9%
No leisure-time physical activity25.7% same as the national average of 25.4%
Arthritis34.8% 9.7 pts above the national average of 25.1%
Binge drinking14.1% 1.9 pts below the national average of 16%
Taking blood pressure medication79% 4.3 pts above the national average of 74.7%
Cancer (non-skin)10.4% 2.7 pts above the national average of 7.7%
Current asthma10.7% same as the national average of 10.4%
Coronary heart disease8.1% 1.9 pts above the national average of 6.2%
Routine check-up in past year79.7% 3 pts above the national average of 76.7%
Cholesterol screening88.6% 2.7 pts above the national average of 85.9%
Cognitive disability16.5% 1.7 pts above the national average of 14.8%
Colorectal screening65.3% 1 pts above the national average of 64.3%
COPD9.4% 2.8 pts above the national average of 6.6%
Visited a dentist62.5% 1.2 pts above the national average of 61.3%
Any disability36.2% 5.5 pts above the national average of 30.7%
Hearing disability9% 2.3 pts above the national average of 6.7%
High cholesterol41.9% 5.7 pts above the national average of 36.2%
Independent living disability8.8% same as the national average of 8.4%
Mammography use74.6% 1.3 pts below the national average of 75.9%
Poor mental health (14+ days)18.3% 1.5 pts above the national average of 16.8%
Mobility disability16.7% 2.7 pts above the national average of 14%
Poor physical health (14+ days)15.6% 2.1 pts above the national average of 13.5%
Self-care disability3.9% same as the national average of 4%
Sleeps under 7 hours36.8% same as the national average of 36.4%
Stroke3.9% 0.5 pts above the national average of 3.4%
All natural teeth lost10.1% 2.9 pts below the national average of 13%
Vision disability4.9% 0.7 pts below the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments54
People employed274
Annual payroll$9,051,000
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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 64.6% of US census tracts
FEMA ratingRelatively Low to Relatively Moderate across the 4 census tracts this ZIP code covers
Expected annual loss66.8 out of 100
Community resilience51.3 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.

Landslide96.4Relatively Moderate at its worst in this ZIP code
Drought92.8Relatively Moderate at its worst in this ZIP code
Lightning89.9Very High at its worst in this ZIP code
Strong wind87Relatively High at its worst in this ZIP code
Earthquake83.5Relatively Moderate at its worst in this ZIP code
Cold wave79.1Relatively High at its worst in this ZIP code
Winter weather77.4Relatively High at its worst in this ZIP code
Wildfire74.6Relatively Low at its worst in this ZIP code
Ice storm72.6Relatively Moderate at its worst in this ZIP code
River flooding70.9Relatively Moderate at its worst in this ZIP code
Tornado68.3Relatively Moderate at its worst in this ZIP code
Hail59.8Relatively Low at its worst in this ZIP code
Hurricane52Relatively Low at its worst in this ZIP code
Heat wave15Relatively 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$87,516$67,097$78,538
Income per person$37,025$37,866$43,289
Poverty rate9.4%13.8%12.4%
Median home value$270,000$256,800$303,400
Median gross rent$1,051$1,122$1,348
Homeownership90.8%67%65%
Bachelor's degree or higher17.2%30.4%35%
Unemployment rate3.4%4.7%5.2%
Works from home5.9%11.4%13.5%
Born outside the US0.8%5.9%13.9%
Median age38.338.938.7
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 stationLENOIR CITY, TN US16.7 km away
Rain in a year55 in
Snow in a year4 in

Average high and low by month

January48.6°F / 28°F4.99 in rain, 1.6 in snow
February53.1°F / 30.7°F5.22 in rain, 1.3 in snow
March62°F / 37.4°F5.09 in rain, 0.6 in snow
April71.4°F / 45.5°F5.16 in rain
May79°F / 55.2°F4.29 in rain
June85.9°F / 64.1°F4.24 in rain
July89°F / 68.1°F5.12 in rain
August88.4°F / 66.8°F3.82 in rain
September83.5°F / 60.2°F4.25 in rain
October72.9°F / 47.6°F3.02 in rain
November61.2°F / 36.6°F4.14 in rain, 0.1 in snow
December52°F / 31.3°F5.86 in rain, 0.4 in snow
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 supermarket19% 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.

Loudon County School District67.6% of this ZIP code's land area
Blount County School District32.4% 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 vulnerability18more vulnerable than 18% of US census tracts
Socioeconomic status23more vulnerable than 23% of US census tracts
Household characteristics43more vulnerable than 43% of US census tracts
Racial and ethnic minority status6more vulnerable than 6% of US census tracts
Housing type and transport23more vulnerable than 23% of US census tracts
Walkability4.7 out of 20Least walkable
Nearby ZIP codes

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

37801 Maryville, TN9.2 km away
37737 Friendsville, TN12.1 km away
37885 Vonore, TN13.5 km away
37772 Lenoir City, TN15.3 km away
37803 Maryville, TN15.9 km away
37774 Loudon, TN17.5 km away
37878 Tallassee, TN18 km away
37771 Lenoir City, TN19.1 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.

Loudon County67.6% of this ZIP code's land area
Blount County32.4% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area49.41 sq mi
Water area2.88 sq mi
Population density153 people per sq mi
Latitude, longitude35.6567, -84.1710

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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