37657 ZIP Code — Flag Pond, TN

Unicoi County, Tennessee

ZIP code 37657 is located in Flag Pond, Tennessee, within Unicoi County. It covers approximately 36.73 square miles and serves a population of 1,057 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 423.

About ZIP code 37657

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1980s, giving the area an established character. Median home value is $210,900. Owner-occupancy is high at 83%, well above the national average.

Median household income is $67,951. 57% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is sales and office, with education and healthcare as the leading industry. The average commute of 34 minutes is near the national average. Remote work is prevalent — 23% of workers work from home.

Educational attainment is near the national average, with 23% of residents holding a bachelor's degree or higher.

Health indicators show elevated rates of smoking (26%) compared to national benchmarks.

Notable community characteristics include a notable veteran presence at 18% of civilians, above the national average of 7%.

Overall, ZIP code 37657 reflects a community defined by a strong veteran community, high homeownership, a high rate of remote workers, and a significant Social Security-dependent population.

1,057

population

36.73

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

37657 ZIP code map

Cities in ZIP code 37657

Below are the cities the US Postal Service accepts for ZIP code 37657. Using any city not on this list may result in mail delivery delays.

City	Status
Flag Pond	Preferred

Nearby ZIP codes

37650 Erwin (6.6 mi) 28754 Mars Hill (10 mi) 28753 Marshall (13 mi) 37690 Telford (14.8 mi) 37641 Chuckey (15.1 mi) 28740 Green Mountain (15.9 mi) 28714 Burnsville (16.3 mi) 37681 Limestone (16.3 mi) 37743 Greeneville (17.2 mi) 37616 Afton (17.4 mi) 37692 Unicoi (17.6 mi) 28705 Bakersville (18 mi)

Demographics updated 05/2026

Population
Total population	1,057
Population density	29 / sq mi
State FIPS	47
County FIPS	171

Geography
Land area	36.73 sq mi
Water area	0.00 sq mi
Latitude	36.0234
Longitude	-82.5530
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	43.5%	57.1%	45.7%
$50k – $100k	47.2%	31.2%	30.9%
$100k – $200k	7.9%	10.2%	18.3%
Over $200k	1.4%	1.4%	5.1%

Demographics & statistics

1,057

Population

People per sq mi

41.3

Median age

$67,951

Median household income

$24,701

Per capita income

$210,900

Median home value

$681

Median monthly rent

83.4%

Home ownership

15.6%

Poverty rate

0.0%

Unemployment

454

Housing units

22.7%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

103

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	361	34.2%
18 and over	696	65.8%
65 and over	244	23.1%
Median age	41.3 years

Race & ethnicity

White 92.9%

American Indian / Alaska Native 5.5%

Two or more races 1.6%

Group	Count	%
White	982	92.9%
American Indian / Alaska Native	58	5.5%
Two or more races	17	1.6%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	43.5%	57.1%	45.7%
$50k – $100k	47.2%	31.2%	30.9%
$100k – $200k	7.9%	10.2%	18.3%
Over $200k	1.4%	1.4%	5.1%

Under $10k 3.1%

$10k–$15k 2.8%

$15k–$25k 7.7%

$25k–$35k 10.0%

$35k–$50k 9.0%

$50k–$75k 33.0%

$75k–$100k 18.9%

$100k–$150k 10.2%

$150k–$200k 4.3%

$200k+ 1.0%

Range	% of households
Under $10k	3.1%
$10k–$15k	2.8%
$15k–$25k	7.7%
$25k–$35k	10.0%
$35k–$50k	9.0%
$50k–$75k	33.0%
$75k–$100k	18.9%
$100k–$150k	10.2%
$150k–$200k	4.3%
$200k+	1.0%
Median income	$67,951

Housing

Home values

Under $50k 14.1%

$50k–$100k 8.3%

$100k–$150k 8.9%

$150k–$200k 12.6%

$200k–$300k 29.8%

$300k–$500k 25.2%

$1M+ 1.2%

Housing overview

Metric	Value
Median home value	$210,900
Median rent / month	$681
Owner occupied	83.4%
Renter occupied	16.6%
Vacant	24.7%
Single-family detached	77.3%
Large apartment buildings	0.0%
Mobile homes	21.2%
Median rooms	6.4
Avg household size (owned)	2.56

Year built

Era	%
2020 or later	0.0%
2010–2019	2.1%
2000–2009	13.1%
1990–1999	11.9%
1980–1989	19.5%
1970–1979	17.1%
1960–1969	11.2%
1950–1959	6.0%
1940–1949	4.4%
1939 or earlier	14.6%

Bedrooms

Size	% of units
No bedroom (studio)	3.5%
1 bedroom	0.0%
2 bedrooms	27.2%
3 bedrooms	54.7%
4 bedrooms	7.9%
5+ bedrooms	6.7%

Vehicles per household

Vehicles	% of households
No vehicle	2.8%
1 vehicle	28.4%
2 vehicles	30.4%
3 or more	38.4%

Heating fuel

Fuel type	%
Utility gas	2.3%
Electricity	39.4%
Propane / LP gas	16.6%
Fuel oil	4.9%
Wood	30.7%

Households & families

Household type	Count	%
Married-couple family	226	57.8%
Cohabiting couple	32	8.2%
Male householder, no spouse	93	23.8%
Female householder, no spouse	40	10.2%
Households with children under 18	113	28.9%
Households with seniors (65+)	156	39.9%
Average household size	2.70

Marital status

Status	Male	Female
Never married	33.2%	34.4%
Married	56.1%	53.0%
Separated	3.4%	0.0%
Widowed	1.6%	1.9%
Divorced	5.7%	10.7%

Education

Less than 9th grade 8.2%

Some HS, no diploma 5.0%

HS graduate 40.8%

Some college, no degree 20.0%

Associate's degree 3.3%

Bachelor's degree 20.3%

Graduate / professional 2.4%

Metric	%
HS diploma or higher	86.8%
Bachelor's or higher	22.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	29	9.2%
Kindergarten	14	4.5%
Elementary school	129	41.1%
High school	120	38.2%
College / grad school	22	7.0%

Employment

Industry of employment

Education & healthcare 40.2%

Retail trade 23.6%

Construction 10.7%

Transportation & utilities 8.9%

Manufacturing 5.2%

Arts, food & hospitality 3.4%

Professional & management 3.1%

Finance & real estate 2.1%

Other services 1.8%

Wholesale trade 0.9%

Occupation

Category	%
Management, business & arts	31.9%
Service	9.8%
Sales & office	34.0%
Natural resources & construction	19.0%
Production & transportation	5.2%

Employment type

Type	%
Private sector	72.4%
Government	19.0%
Self-employed	8.6%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	71.2%
Carpool	4.9%
Public transit	0.0%
Walk	0.0%
Work from home	23.3%
Other means	0.6%
Avg commute (minutes)	34.1

Poverty

All people 15.6%

Under 18 years 33.3%

18 and over 7.9%

Married-couple families 0.0%

Female-led households 100.0%

Income support

Source	% of households
Social Security	56.5%
Retirement income	31.5%
Supplemental Security	4.3%
Cash public assistance	0.0%
Food stamps / SNAP	13.3%

Health indicators

Condition	%
Obesity	34.7%
High blood pressure	42.9%
High cholesterol	38.3%
Diabetes	13.8%
Heart disease	9.1%
Stroke	4.2%
Asthma	10.8%
Arthritis	34.5%
Kidney disease	3.5%
Pulmonary disease	11.3%
Cancer	7.8%

Behavior / access	%
Smoking	25.5%
Binge drinking	13.5%
No physical activity	27.9%
Less than 7 hrs sleep	35.5%
Depression	27.8%
Fair or poor health	19.4%
Poor mental health	17.2%
Poor physical health	13.7%
No health insurance	16.9%
Visited doctor (checkup)	76.0%
Visited dentist	54.4%
Cholesterol screening	90.7%
Teeth loss	19.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	124	17.8%

Disability	%
Any disability	13.8%
Under 18	0.0%
18–64 years	21.5%
65 and over	20.1%

Health insurance coverage

Type	%
Private insurance	44.2%
Public insurance	57.5%
No insurance	9.0%
Uninsured under 19	16.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	947	89.6%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,057	100.0%
Born in same state	1,057	100.0%
Born in different state	597	56.5%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
French	228	21.6%
Arab	152	14.4%
Italian	68	6.4%

Ancestry	Count	%
German	10	0.9%
English	7	0.7%

Technology access

Metric	% of households
Computer access	37.0%
Internet access	89.0%

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

Frequently asked questions about ZIP code 37657

What city is ZIP code 37657 in?

ZIP code 37657 is primarily assigned to Flag Pond, Tennessee.

What county is ZIP code 37657 in?

ZIP code 37657 falls within Unicoi County, Tennessee.

Is ZIP code 37657 family-oriented?

34% of residents in ZIP code 37657 are under 18, reflecting a younger, family-oriented community.

Does ZIP code 37657 have a large retiree population?

57% of households in ZIP code 37657 receive Social Security income, suggesting a significant retiree or disability population.

Does ZIP code 37657 have a large veteran population?

18% of civilians in ZIP code 37657 are veterans, above the national average of ~7%.

Is ZIP code 37657 mostly owner-occupied?

83% of occupied units in ZIP code 37657 are owner-occupied, well above the national average.

What timezone is ZIP code 37657 in?

ZIP code 37657 observes the EST timezone.