37656 ZIP Code — Fall Branch, TN

Washington County, Tennessee

ZIP code 37656 is located in Fall Branch, Tennessee, within Washington County. It covers approximately 29.11 square miles and serves a population of 3,652 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 423.

About ZIP code 37656

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $209,400. Owner-occupancy is high at 92%, well above the national average.

The gap between median ($58,542) and mean household income suggests income inequality — a small number of higher earners pull the average up. 47% 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. The average commute of 25 minutes is near the national average.

College attainment at 19% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of smoking (22%) compared to national benchmarks.

Overall, ZIP code 37656 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

3,652

population

29.11

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

37656 ZIP code map

Cities in ZIP code 37656

Below are the cities the US Postal Service accepts for ZIP code 37656. Using any city not on this list may result in mail delivery delays.

City	Status
Fall Branch	Preferred

Nearby ZIP codes

37642 Church Hill (8.7 mi) 37660 Kingsport (9.6 mi) 37681 Limestone (9.7 mi) 37663 Kingsport (9.9 mi) 37645 Mount Carmel (10 mi) 37615 Johnson City (10.3 mi) 37664 Kingsport (10.3 mi) 37641 Chuckey (11.6 mi) 37690 Telford (11.6 mi) 37669 Kingsport (11.6 mi) 37659 Jonesborough (11.7 mi) 37616 Afton (12.9 mi)

Demographics updated 05/2026

Population
Total population	3,652
Population density	125 / sq mi
State FIPS	47
County FIPS	179

Geography
Land area	29.11 sq mi
Water area	0.00 sq mi
Latitude	36.3923
Longitude	-82.6372
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	49.0%	51.8%	45.7%
$50k – $100k	25.8%	28.6%	30.9%
$100k – $200k	18.6%	15.8%	18.3%
Over $200k	6.6%	3.9%	5.1%

Demographics & statistics

3,652

Population

125

People per sq mi

52.0

Median age

$58,542

Median household income

$35,676

Per capita income

$209,400

Median home value

$892

Median monthly rent

92.1%

Home ownership

8.7%

Poverty rate

4.5%

Unemployment

1,615

Housing units

19.0%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

142

15–19

131

166

20–24

153

122

25–34

111

195

35–44

178

302

45–54

278

192

55–59

177

205

60–64

189

299

65–74

275

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	497	13.6%
18 and over	3,155	86.4%
65 and over	781	21.4%
Median age	52.0 years

Race & ethnicity

White 95.2%

Hispanic or Latino 1.6%

Asian 1.5%

Other race 0.9%

Two or more races 0.8%

Group	Count	%
White	3,532	95.2%
Hispanic or Latino	60	1.6%
Asian	56	1.5%
Other race	35	0.9%
Two or more races	28	0.8%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	49.0%	51.8%	45.7%
$50k – $100k	25.8%	28.6%	30.9%
$100k – $200k	18.6%	15.8%	18.3%
Over $200k	6.6%	3.9%	5.1%

Under $10k 1.4%

$10k–$15k 2.2%

$15k–$25k 5.6%

$25k–$35k 14.6%

$35k–$50k 23.8%

$50k–$75k 17.8%

$75k–$100k 6.8%

$100k–$150k 13.6%

$150k–$200k 7.0%

$200k+ 7.2%

Range	% of households
Under $10k	1.4%
$10k–$15k	2.2%
$15k–$25k	5.6%
$25k–$35k	14.6%
$35k–$50k	23.8%
$50k–$75k	17.8%
$75k–$100k	6.8%
$100k–$150k	13.6%
$150k–$200k	7.0%
$200k+	7.2%
Median income	$58,542

Housing

Home values

Under $50k 5.6%

$50k–$100k 7.0%

$100k–$150k 12.3%

$150k–$200k 21.4%

$200k–$300k 35.2%

$300k–$500k 11.2%

$500k–$1M 7.3%

Housing overview

Metric	Value
Median home value	$209,400
Median rent / month	$892
Owner occupied	92.1%
Renter occupied	7.9%
Vacant	13.3%
Single-family detached	83.9%
Large apartment buildings	0.0%
Mobile homes	16.1%
Median rooms	5.8
Avg household size (owned)	2.43

Year built

Era	%
2020 or later	0.0%
2010–2019	11.7%
2000–2009	18.0%
1990–1999	11.2%
1980–1989	6.1%
1970–1979	18.1%
1960–1969	7.7%
1950–1959	16.5%
1940–1949	3.8%
1939 or earlier	6.9%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	13.4%
3 bedrooms	66.8%
4 bedrooms	17.8%
5+ bedrooms	2.1%

Vehicles per household

Vehicles	% of households
No vehicle	3.3%
1 vehicle	20.3%
2 vehicles	28.1%
3 or more	48.3%

Heating fuel

Fuel type	%
Electricity	88.4%
Propane / LP gas	10.5%

Households & families

Household type	Count	%
Married-couple family	1,006	66.9%
Cohabiting couple	75	5.0%
Male householder, no spouse	202	13.4%
Female householder, no spouse	221	14.7%
Households with children under 18	343	22.8%
Households with seniors (65+)	560	37.2%
Average household size	2.43

Marital status

Status	Male	Female
Never married	23.3%	16.4%
Married	65.0%	64.2%
Separated	0.0%	3.9%
Widowed	2.5%	7.8%
Divorced	9.1%	7.8%

Education

Less than 9th grade 5.3%

Some HS, no diploma 3.9%

HS graduate 43.2%

Some college, no degree 22.5%

Associate's degree 6.2%

Bachelor's degree 12.9%

Graduate / professional 6.2%

Metric	%
HS diploma or higher	90.8%
Bachelor's or higher	19.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	37	5.9%
Kindergarten	0	0.0%
Elementary school	236	37.9%
High school	217	34.9%
College / grad school	132	21.2%

Employment

Industry of employment

Education & healthcare 24.3%

Manufacturing 16.1%

Retail trade 9.8%

Other services 9.8%

Finance & real estate 9.5%

Professional & management 7.4%

Transportation & utilities 6.5%

Construction 5.5%

Arts, food & hospitality 4.4%

Public administration 4.4%

Information 2.2%

Occupation

Category	%
Management, business & arts	36.6%
Service	18.0%
Sales & office	20.8%
Natural resources & construction	8.5%
Production & transportation	16.1%

Employment type

Type	%
Private sector	71.4%
Government	14.6%
Self-employed	14.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	86.9%
Carpool	4.4%
Public transit	0.0%
Walk	0.0%
Work from home	8.6%
Other means	0.0%
Avg commute (minutes)	25.1

Poverty

All people 8.7%

Under 18 years 10.1%

18 and over 8.5%

Married-couple families 3.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	47.2%
Retirement income	31.8%
Supplemental Security	7.5%
Cash public assistance	2.3%
Food stamps / SNAP	9.0%

Health indicators

Condition	%
Obesity	34.8%
High blood pressure	39.6%
High cholesterol	39.7%
Diabetes	12.3%
Heart disease	7.6%
Stroke	3.3%
Asthma	10.3%
Arthritis	32.5%
Kidney disease	3.0%
Pulmonary disease	8.9%
Cancer	7.7%

Behavior / access	%
Smoking	22.0%
Binge drinking	13.9%
No physical activity	23.6%
Less than 7 hrs sleep	34.5%
Depression	26.0%
Fair or poor health	15.6%
Poor mental health	15.8%
Poor physical health	11.6%
No health insurance	14.3%
Visited doctor (checkup)	75.8%
Visited dentist	61.1%
Cholesterol screening	92.1%
Teeth loss	15.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	183	5.8%

Disability	%
Any disability	19.6%
Under 18	1.4%
18–64 years	17.9%
65 and over	36.1%

Health insurance coverage

Type	%
Private insurance	70.6%
Public insurance	33.7%
No insurance	5.6%
Uninsured under 19	8.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	3,550	97.2%
Spanish	49	1.4%
Other Indo-European	10	0.3%
Asian & Pacific Islander	29	0.8%
Other languages	10	0.3%

Place of birth & citizenship

Origin	Count	%
Native born (US)	3,581	98.1%
Born in same state	3,574	97.9%
Born in different state	2,413	66.1%
Foreign born	7	0.2%
Naturalized citizen	71	1.9%
Not a US citizen	4	5.6%

Ancestry

Ancestry	Count	%
French	569	15.6%
Italian	421	11.5%
Arab	387	10.6%

Ancestry	Count	%
English	32	0.9%
German	7	0.2%

Technology access

Metric	% of households
Computer access	41.2%
Internet access	86.2%

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

Frequently asked questions about ZIP code 37656

What city is ZIP code 37656 in?

ZIP code 37656 is primarily assigned to Fall Branch, Tennessee.

What county is ZIP code 37656 in?

ZIP code 37656 falls within Washington County, Tennessee.

Is ZIP code 37656 mostly owner-occupied?

92% of occupied units in ZIP code 37656 are owner-occupied, well above the national average.

Does ZIP code 37656 have a large retiree population?

47% of households in ZIP code 37656 receive Social Security income, suggesting a significant retiree or disability population.

What is the population of ZIP code 37656?

ZIP code 37656 has an estimated population of 3,652 residents, with a density of 125 people per square mile.

What is the typical home value in ZIP code 37656?

The median home value in ZIP code 37656 is $209,400.

What timezone is ZIP code 37656 in?

ZIP code 37656 observes the EST timezone.