37729 ZIP Code — Duff, TN

Campbell County, Tennessee

ZIP code 37729 is located in Duff, Tennessee, within Campbell County. It covers approximately 49.25 square miles and serves a population of 1,547 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 423.

About ZIP code 37729

The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $77,300. Owner-occupancy is high at 83%, well above the national average.

Median household income is $55,568. Poverty affects 19% of residents, above the national average. SNAP benefit usage at 21% of households reflects economic stress in the area. 52% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 41 minutes suggests many residents work outside the immediate area.

Educational attainment is near the national average, with 30% of residents holding a bachelor's degree or higher.

Health indicators show elevated rates of diabetes (15%), smoking (34%) compared to national benchmarks.

Overall, ZIP code 37729 reflects a community defined by economic challenges above the national average, high homeownership, a significant Social Security-dependent population, and elevated reliance on food assistance.

1,547

population

49.25

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

37729 ZIP code map

Cities in ZIP code 37729

Below are the cities the US Postal Service accepts for ZIP code 37729. Using any city not on this list may result in mail delivery delays.

City	Status
Duff	Acceptable
Duff	Preferred

Nearby ZIP codes

37762 Jellico (7.4 mi) 37766 La Follette (8.9 mi) 37715 Clairfield (9.1 mi) 40940 Frakes (10.2 mi) 37870 Speedwell (10.8 mi) 40763 Siler (13 mi) 37866 Sharps Chapel (13.8 mi) 40769 Williamsburg (16.4 mi) 37757 Jacksboro (16.8 mi) 37724 Cumberland Gap (17.7 mi) 40921 Bryants Store (17.9 mi) 37847 Pioneer (18.2 mi)

Demographics updated 05/2026

Population
Total population	1,547
Population density	31 / sq mi
State FIPS	47
County FIPS	013

Geography
Land area	49.25 sq mi
Water area	0.00 sq mi
Latitude	36.5116
Longitude	-84.0139
Timezone	Eastern (ET)
Area code	423

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	48.9%	57.2%	45.7%
$50k – $100k	46.0%	29.8%	30.9%
$100k – $200k	3.2%	11.6%	18.3%
Over $200k	2.0%	1.5%	5.1%

Demographics & statistics

1,547

Population

People per sq mi

45.2

Median age

$55,568

Median household income

$20,263

Per capita income

$77,300

Median home value

Median monthly rent

82.9%

Home ownership

19.2%

Poverty rate

15.6%

Unemployment

592

Housing units

30.2%

Bachelor's or higher

Age distribution

Male Female

123

Under 5

106

5–9

10–14

15–19

20–24

102

25–34

35–44

190

45–54

164

55–59

60–64

113

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	369	23.9%
18 and over	1,178	76.1%
65 and over	280	18.1%
Median age	45.2 years

Race & ethnicity

White 99.8%

Two or more races 0.2%

Group	Count	%
White	1,544	99.8%
Two or more races	3	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	48.9%	57.2%	45.7%
$50k – $100k	46.0%	29.8%	30.9%
$100k – $200k	3.2%	11.6%	18.3%
Over $200k	2.0%	1.5%	5.1%

Under $10k 3.1%

$10k–$15k 0.6%

$15k–$25k 15.4%

$25k–$35k 10.4%

$35k–$50k 17.1%

$50k–$75k 24.0%

$75k–$100k 10.4%

$100k–$150k 17.5%

$150k–$200k 1.7%

Range	% of households
Under $10k	3.1%
$10k–$15k	0.6%
$15k–$25k	15.4%
$25k–$35k	10.4%
$35k–$50k	17.1%
$50k–$75k	24.0%
$75k–$100k	10.4%
$100k–$150k	17.5%
$150k–$200k	1.7%
Median income	$55,568

Housing

Home values

Under $50k 28.7%

$50k–$100k 40.5%

$100k–$150k 28.5%

$150k–$200k 2.3%

Housing overview

Metric	Value
Median home value	$77,300
Median rent / month	$0
Owner occupied	82.9%
Renter occupied	17.1%
Vacant	23.5%
Single-family detached	47.6%
Large apartment buildings	0.0%
Mobile homes	52.4%
Median rooms	6.1
Avg household size (owned)	2.89

Year built

Era	%
2020 or later	0.0%
2010–2019	10.9%
2000–2009	8.2%
1990–1999	25.3%
1980–1989	7.8%
1970–1979	8.2%
1960–1969	6.2%
1950–1959	23.8%
1940–1949	4.0%
1939 or earlier	5.7%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	4.7%
2 bedrooms	40.5%
3 bedrooms	33.8%
4 bedrooms	19.5%
5+ bedrooms	1.5%

Vehicles per household

Vehicles	% of households
No vehicle	6.3%
1 vehicle	16.5%
2 vehicles	40.9%
3 or more	36.3%

Heating fuel

Fuel type	%
Utility gas	4.2%
Electricity	61.2%
Propane / LP gas	25.5%
Fuel oil	3.5%
Wood	5.6%

Households & families

Household type	Count	%
Married-couple family	237	45.5%
Cohabiting couple	26	5.0%
Male householder, no spouse	60	11.5%
Female householder, no spouse	198	38.0%
Households with children under 18	181	34.7%
Households with seniors (65+)	244	46.8%
Average household size	2.97

Marital status

Status	Male	Female
Never married	43.7%	31.0%
Married	47.4%	47.0%
Separated	2.5%	0.0%
Widowed	1.6%	12.8%
Divorced	4.8%	9.2%

Education

Less than 9th grade 9.6%

Some HS, no diploma 21.4%

HS graduate 29.8%

Some college, no degree 6.9%

Associate's degree 2.1%

Bachelor's degree 1.5%

Graduate / professional 28.7%

Metric	%
HS diploma or higher	69.0%
Bachelor's or higher	30.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	8	5.3%
Elementary school	77	51.3%
High school	42	28.0%
College / grad school	23	15.3%

Employment

Industry of employment

Education & healthcare 47.0%

Construction 17.9%

Agriculture & mining 8.1%

Manufacturing 6.8%

Professional & management 5.8%

Other services 5.1%

Wholesale trade 2.5%

Public administration 2.5%

Information 2.3%

Arts, food & hospitality 2.0%

Occupation

Category	%
Management, business & arts	43.4%
Service	11.6%
Sales & office	6.6%
Natural resources & construction	25.8%
Production & transportation	12.6%

Employment type

Type	%
Private sector	66.4%
Government	33.6%
Self-employed	0.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	59.8%
Carpool	31.3%
Public transit	0.0%
Walk	0.0%
Work from home	6.7%
Other means	2.1%
Avg commute (minutes)	40.7

Poverty

All people 19.2%

Under 18 years 31.2%

18 and over 15.4%

Married-couple families 6.8%

Female-led households 16.0%

Income support

Source	% of households
Social Security	52.4%
Retirement income	29.8%
Supplemental Security	7.7%
Cash public assistance	10.4%
Food stamps / SNAP	21.1%

Health indicators

Condition	%
Obesity	40.0%
High blood pressure	43.7%
High cholesterol	37.7%
Diabetes	15.4%
Heart disease	9.6%
Stroke	4.8%
Asthma	12.1%
Arthritis	34.2%
Kidney disease	3.9%
Pulmonary disease	14.5%
Cancer	6.8%

Behavior / access	%
Smoking	33.8%
Binge drinking	13.5%
No physical activity	36.0%
Less than 7 hrs sleep	37.1%
Depression	30.1%
Fair or poor health	26.0%
Poor mental health	20.5%
Poor physical health	17.2%
No health insurance	22.9%
Visited doctor (checkup)	74.4%
Visited dentist	40.4%
Cholesterol screening	86.8%
Teeth loss	29.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	14	1.2%

Disability	%
Any disability	20.1%
Under 18	8.1%
18–64 years	10.0%
65 and over	68.2%

Health insurance coverage

Type	%
Private insurance	48.6%
Public insurance	55.7%
No insurance	11.2%
Uninsured under 19	3.8%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,318	85.2%
Spanish	28	2.1%
Other Indo-European	0	0.0%
Asian & Pacific Islander	28	2.1%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,519	98.2%
Born in same state	1,519	98.2%
Born in different state	1,266	81.8%
Foreign born	0	0.0%
Naturalized citizen	28	1.8%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
French	139	9%
Arab	88	5.7%

Ancestry	Count	%
Italian	47	3%

Technology access

Metric	% of households
Computer access	33.7%
Internet access	82.3%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 37729

What city is ZIP code 37729 in?

ZIP code 37729 is primarily assigned to Duff, Tennessee.

What county is ZIP code 37729 in?

ZIP code 37729 falls within Campbell County, Tennessee.

Does ZIP code 37729 have a large retiree population?

52% of households in ZIP code 37729 receive Social Security income, suggesting a significant retiree or disability population.

What is the poverty rate in ZIP code 37729?

19% of residents in ZIP code 37729 live below the poverty line, above the national average.

Is ZIP code 37729 mostly owner-occupied?

83% of occupied units in ZIP code 37729 are owner-occupied, well above the national average.

What is the typical home value in ZIP code 37729?

The median home value in ZIP code 37729 is $77,300.

What timezone is ZIP code 37729 in?

ZIP code 37729 observes the EST timezone.