37377 ZIP Code — Signal Mountain, TN

Hamilton County, Tennessee

ZIP code 37377 is located in Signal Mountain, Tennessee, within Hamilton County. It covers approximately 80.46 square miles and serves a population of 16,508 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 423.

About ZIP code 37377

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 $438,200. Owner-occupancy is high at 86%, well above the national average.

The gap between median ($111,228) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 6% is below the national average. 38% 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 28 minutes is near the national average.

Educational attainment is high — 59% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 37377 reflects a community defined by a highly educated population, high homeownership, and a significant Social Security-dependent population.

16,508

population

80.46

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

37377 ZIP code map

Cities in ZIP code 37377

Below are the cities the US Postal Service accepts for ZIP code 37377. Using any city not on this list may result in mail delivery delays.

City	Status
Signal Mountain	Acceptable
Signal Mountain	Preferred

Nearby ZIP codes

37405 Chattanooga (5.1 mi) 37415 Chattanooga (5.5 mi) 37343 Hixson (7.1 mi) 37406 Chattanooga (9.1 mi) 37402 Chattanooga (9.6 mi) 37416 Chattanooga (9.7 mi) 37450 Chattanooga (9.7 mi) 37403 Chattanooga (9.8 mi) 37396 Whiteside (10 mi) 37397 Whitwell (10.6 mi) 37419 Chattanooga (10.6 mi) 37408 Chattanooga (10.8 mi)

Demographics updated 05/2026

Population
Total population	16,508
Population density	205 / sq mi
State FIPS	47
County FIPS	065

Geography
Land area	80.46 sq mi
Water area	0.06 sq mi
Latitude	35.1858
Longitude	-85.3280
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	26.4%	44.3%	45.7%
$50k – $100k	22.6%	30.0%	30.9%
$100k – $200k	32.5%	19.5%	18.3%
Over $200k	18.4%	6.2%	5.1%

Demographics & statistics

16,508

Population

205

People per sq mi

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

Income range	This ZIP	County avg	State avg
Under $50k	26.4%	44.3%	45.7%
$50k – $100k	22.6%	30.0%	30.9%
$100k – $200k	32.5%	19.5%	18.3%
Over $200k	18.4%	6.2%	5.1%

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%
Work from home	15.5%
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	%
Obesity	26.0%
High blood pressure	35.1%
High cholesterol	38.6%
Diabetes	9.8%
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	%
Smoking	12.6%
Binge drinking	13.9%
No physical activity	16.7%
Less than 7 hrs sleep	28.8%
Depression	22.7%
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%
No insurance	4.3%
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 about ZIP code 37377

What city is ZIP code 37377 in?

ZIP code 37377 is primarily assigned to Signal Mountain, Tennessee.

What county is ZIP code 37377 in?

ZIP code 37377 falls within Hamilton County, Tennessee.

How educated is the population of ZIP code 37377?

59% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Is ZIP code 37377 mostly owner-occupied?

86% of occupied units in ZIP code 37377 are owner-occupied, well above the national average.

Does ZIP code 37377 have a large retiree population?

38% of households in ZIP code 37377 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 37377?

The median home value in ZIP code 37377 is $438,200.

What timezone is ZIP code 37377 in?

ZIP code 37377 observes the EST timezone.