Signal Mountain ZIP Codes — Hamilton County, TN

There is one unique ZIP code in Signal Mountain, Tennessee and it is 37377. Area code: 423.

ZIP codes

80.46

sq mi land

0.06

sq mi water

423

area code

Signal Mountain, TN ZIP code map

About Signal Mountain, TN

Signal Mountain is a charming town located in Hamilton County, Tennessee. Nestled atop a mountain, it offers stunning views of the surrounding area and a delightful small-town atmosphere. Residents and visitors alike enjoy the peaceful environment, making it a popular place for families and outdoor enthusiasts.

Location & geography

Situated just a short drive from downtown Chattanooga, Signal Mountain is located approximately 10 miles north of the city center. The area is characterized by its hilly terrain and beautiful landscapes, with 80.46 square miles of land and a small water area of 0.06 square miles. Nearby cities include Lookout Mountain, TN, approximately 6 miles to the southwest, Red Bank, TN, about 9 miles to the south, and Hixson, TN, roughly 8 miles to the southeast.

Community & economy

The community of Signal Mountain is known for its friendly, close-knit environment, where residents often engage in local events and activities. The primary industries in the area include education, retail, and small businesses, all contributing to a thriving local economy. Daily life is enriched by the town's scenic parks, hiking trails, and family-friendly events that encourage outdoor activities and community involvement.

Transportation

Signal Mountain is accessible primarily via State Route 127, which connects to larger highways leading to Chattanooga and beyond. The nearest major airport is Chattanooga Metropolitan Airport, located approximately 15 miles south of the town. Public transit options are limited due to the town's small size, but many residents rely on private vehicles for commuting.

History

Signal Mountain was established in the late 19th century, originally as a summer resort destination for visitors seeking cooler temperatures and scenic views. Originally, the area drew tourists due to its natural beauty and outdoor recreational opportunities. Over time, it has evolved into a residential community while still maintaining its historic charm.

Did you know?

One surprising fact about Signal Mountain is that it was named for the signal stations that were used during the Civil War to communicate important information. Additionally, the town is known for its well-preserved natural landscapes, including various hiking trails that attract both locals and tourists.

ZIP codes for Signal Mountain, TN (1)

ZIP code	City	County	Map
37377	Signal Mountain	Hamilton	View map

Demographics & statistics

16,508

Population

43.7

Median age

$111,228

Median household income

$61,591

Per capita income

$438,200

Median home value

$1,302

Median monthly rent

85.9%

Home ownership

5.8%

Poverty rate

2.1%

Unemployment

5,878

Housing units

58.8%

Bachelor's or higher

Age distribution

Male Female

364

Under 5

390

677

5–9

725

686

10–14

735

491

15–19

526

162

20–24

173

570

25–34

611

1,145

35–44

1,227

1,093

45–54

1,172

475

55–59

509

446

60–64

478

983

65–74

1,053

544

75–84

583

333

85+

357

← Male

Female →

Age summary

Group	Count	%
Under 18	4,300	26.0%
18 and over	12,208	74.0%
65 and over	3,853	23.3%
Median age	43.7 years

Race & ethnicity

White 93.1%

Two or more races 3.3%

Hispanic or Latino 1.2%

Asian 0.9%

Black or African American 0.7%

Native Hawaiian / Pacific Islander 0.5%

Other race 0.3%

American Indian / Alaska Native 0.1%

Group	Count	%
White	15,545	93.1%
Two or more races	553	3.3%
Hispanic or Latino	197	1.2%
Asian	148	0.9%
Black or African American	109	0.7%
Native Hawaiian / Pacific Islander	91	0.5%
Other race	47	0.3%
American Indian / Alaska Native	15	0.1%

Household income

Under $10k 2.7%

$10k–$15k 0.8%

$15k–$25k 6.1%

$25k–$35k 5.0%

$35k–$50k 7.0%

$50k–$75k 11.3%

$75k–$100k 11.0%

$100k–$150k 19.3%

$150k–$200k 11.6%

$200k+ 25.1%

Range	% of households
Under $10k	2.7%
$10k–$15k	0.8%
$15k–$25k	6.1%
$25k–$35k	5.0%
$35k–$50k	7.0%
$50k–$75k	11.3%
$75k–$100k	11.0%
$100k–$150k	19.3%
$150k–$200k	11.6%
$200k+	25.1%
Median income	$111,228

Housing

Home values

Under $50k 0.8%

$50k–$100k 2.0%

$100k–$150k 1.9%

$150k–$200k 5.5%

$200k–$300k 18.1%

$300k–$500k 33.6%

$500k–$1M 30.9%

$1M+ 7.1%

Housing overview

Metric	Value
Median home value	$438,200
Median rent / month	$1,302
Owner occupied	85.9%
Renter occupied	14.1%
Vacant	7.4%
Single-family detached	86.4%
Large apartment buildings	4.0%
Mobile homes	4.0%
Median rooms	7.5
Avg household size (owned)	2.69

Year built

Era	%
2020 or later	0.5%
2010–2019	10.8%
2000–2009	9.1%
1990–1999	11.6%
1980–1989	23.4%
1970–1979	13.3%
1960–1969	11.1%
1950–1959	10.2%
1940–1949	3.0%
1939 or earlier	7.0%

Bedrooms

Size	% of units
No bedroom (studio)	1.3%
1 bedroom	3.2%
2 bedrooms	14.1%
3 bedrooms	33.6%
4 bedrooms	36.6%
5+ bedrooms	11.2%

Vehicles per household

Vehicles	% of households
No vehicle	2.7%
1 vehicle	21.3%
2 vehicles	45.6%
3 or more	30.4%

Heating fuel

Fuel type	%
Utility gas	43.6%
Electricity	48.5%
Propane / LP gas	5.1%
Wood	2.7%

Households & families

Household type	Count	%
Married-couple family	4,185	66.9%
Cohabiting couple	150	2.4%
Male householder, no spouse	590	9.4%
Female householder, no spouse	1,331	21.3%
Households with children under 18	2,200	35.2%
Households with seniors (65+)	2,546	40.7%
Average household size	2.61

Marital status

Status	Male	Female
Never married	18.9%	14.8%
Married	72.4%	63.8%
Separated	0.3%	1.6%
Widowed	4.1%	10.0%
Divorced	4.2%	9.7%

Education

Less than 9th grade 1.2%

Some HS, no diploma 4.2%

HS graduate 12.7%

Some college, no degree 15.5%

Associate's degree 7.7%

Bachelor's degree 31.7%

Graduate / professional 27.1%

Metric	%
HS diploma or higher	94.7%
Bachelor's or higher	58.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	475	11.0%
Kindergarten	260	6.0%
Elementary school	2,162	49.9%
High school	926	21.4%
College / grad school	511	11.8%

Employment

Industry of employment

Education & healthcare 23.5%

Professional & management 14.4%

Finance & real estate 12.9%

Manufacturing 9.9%

Transportation & utilities 6.4%

Public administration 6.2%

Other services 6.1%

Retail trade 5.9%

Construction 5.5%

Arts, food & hospitality 5.5%

Wholesale trade 2.5%

Agriculture & mining 0.6%

Information 0.6%

Occupation

Category	%
Management, business & arts	60.5%
Service	15.4%
Sales & office	16.1%
Natural resources & construction	2.8%
Production & transportation	5.2%

Employment type

Type	%
Private sector	72.2%
Government	17.8%
Self-employed	8.9%
Unpaid family workers	1.2%

Commute

Method	%
Drive alone	77.9%
Carpool	5.1%
Public transit	0.0%
Walk	1.1%
Other means	0.3%
Avg commute (minutes)	27.9

Poverty

All people 5.8%

Under 18 years 6.1%

18 and over 5.6%

Married-couple families 2.3%

Female-led households 29.4%

Income support

Source	% of households
Social Security	38.3%
Retirement income	29.0%
Supplemental Security	3.5%
Cash public assistance	0.4%
Food stamps / SNAP	1.7%

Health indicators

Condition	%
High blood pressure	35.1%
High cholesterol	38.6%
Heart disease	6.4%
Stroke	2.6%
Asthma	8.8%
Arthritis	27.3%
Kidney disease	2.7%
Pulmonary disease	5.9%
Cancer	8.5%

Behavior / access	%
Binge drinking	13.9%
No physical activity	16.7%
Less than 7 hrs sleep	28.8%
Fair or poor health	10.1%
Poor mental health	12.7%
Poor physical health	8.2%
No health insurance	9.5%
Visited doctor (checkup)	76.1%
Visited dentist	74.0%
Cholesterol screening	94.3%
Teeth loss	7.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	942	7.7%

Disability	%
Any disability	11.1%
Under 18	2.1%
18–64 years	6.2%
65 and over	32.1%

Health insurance coverage

Type	%
Private insurance	84.5%
Public insurance	28.0%
Uninsured under 19	0.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	15,754	95.4%
Spanish	77	0.5%
Other Indo-European	30	0.2%
Asian & Pacific Islander	24	0.2%
Other languages	23	0.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	16,220	98.3%
Born in same state	16,008	97.0%
Born in different state	8,329	50.5%
Foreign born	212	1.3%
Naturalized citizen	288	1.7%
Not a US citizen	191	66.3%

Ancestry

Ancestry	Count	%
French	3,889	23.6%
Italian	2,617	15.9%
Arab	751	4.5%
English	240	1.5%
Polish	59	0.4%

Ancestry	Count	%
Irish	55	0.3%
Norwegian	35	0.2%
Dutch	21	0.1%
German	13	0.1%

Technology access

Metric	% of households
Computer access	37.9%
Internet access	94.5%

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

Frequently asked questions

What ZIP codes does Signal Mountain, TN have?

Signal Mountain, TN has one ZIP code: 37377. Each ZIP code serves a distinct delivery area within the city and surrounding region.