37403 ZIP Code — Chattanooga, TN

Hamilton County, Tennessee

ZIP code 37403 is located in Chattanooga, Tennessee, within Hamilton County. It covers approximately 1.71 square miles and serves a population of 6,494 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 423.

About ZIP code 37403

The housing stock consists of a significant share of large multi-unit buildings. Most homes were built in the pre-1940, giving the area an established character. Median home value is $434,500. Renters make up the majority at 75%, typical of denser urban areas.

The gap between median ($64,583) and mean household income suggests income inequality — a small number of higher earners pull the average up. Poverty affects 28% of residents, above the national average.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 15 minutes is near the national average.

Educational attainment is high — 47% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Health indicators show elevated rates of poor mental health (23%) compared to national benchmarks.

6,494

population

1.71

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

37403 ZIP code map

Cities in ZIP code 37403

Below are the cities the US Postal Service accepts for ZIP code 37403. Using any city not on this list may result in mail delivery delays.

City	Status
Chattanooga	Preferred

Nearby ZIP codes

37450 Chattanooga (0.9 mi) 37402 Chattanooga (1.2 mi) 37408 Chattanooga (1.5 mi) 37404 Chattanooga (2 mi) 37407 Chattanooga (3 mi) 37406 Chattanooga (3.1 mi) 37410 Chattanooga (3.2 mi) 37411 Chattanooga (3.8 mi) 37409 Chattanooga (4.4 mi) 37350 Lookout Mountain (4.8 mi) 37412 Chattanooga (5 mi) 37415 Chattanooga (6 mi)

Demographics updated 05/2026

Population
Total population	6,494
Population density	3,798 / sq mi
State FIPS	47
County FIPS	065

Geography
Land area	1.71 sq mi
Water area	0.15 sq mi
Latitude	35.0470
Longitude	-85.2931
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	47.1%	44.3%	45.7%
$50k – $100k	16.2%	30.0%	30.9%
$100k – $200k	28.1%	19.5%	18.3%
Over $200k	8.5%	6.2%	5.1%

Demographics & statistics

6,494

Population

3,798

People per sq mi

20.9

Median age

$64,583

Median household income

$29,048

Per capita income

$434,500

Median home value

$1,169

Median monthly rent

25.4%

Home ownership

28.4%

Poverty rate

6.2%

Unemployment

821

Housing units

46.6%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

1,069

15–19

1,141

939

20–24

1,002

313

25–34

335

294

35–44

314

45–54

55–59

117

60–64

125

111

65–74

118

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	161	2.5%
18 and over	6,333	97.5%
65 and over	427	6.6%
Median age	20.9 years

Race & ethnicity

White 72.8%

Black or African American 16%

Two or more races 5.6%

Hispanic or Latino 2.8%

Asian 2.3%

Native Hawaiian / Pacific Islander 0.3%

Other race 0.3%

Group	Count	%
White	4,862	72.8%
Black or African American	1,069	16%
Two or more races	371	5.6%
Hispanic or Latino	189	2.8%
Asian	152	2.3%
Native Hawaiian / Pacific Islander	21	0.3%
Other race	19	0.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	47.1%	44.3%	45.7%
$50k – $100k	16.2%	30.0%	30.9%
$100k – $200k	28.1%	19.5%	18.3%
Over $200k	8.5%	6.2%	5.1%

Under $10k 5.1%

$10k–$15k 9.9%

$15k–$25k 9.2%

$25k–$35k 7.5%

$35k–$50k 6.2%

$50k–$75k 16.3%

$75k–$100k 4.4%

$100k–$150k 26.2%

$150k–$200k 5.1%

$200k+ 10.1%

Range	% of households
Under $10k	5.1%
$10k–$15k	9.9%
$15k–$25k	9.2%
$25k–$35k	7.5%
$35k–$50k	6.2%
$50k–$75k	16.3%
$75k–$100k	4.4%
$100k–$150k	26.2%
$150k–$200k	5.1%
$200k+	10.1%
Median income	$64,583

Housing

Home values

$50k–$100k 6.7%

$100k–$150k 6.2%

$150k–$200k 1.0%

$200k–$300k 20.5%

$300k–$500k 27.2%

$500k–$1M 24.6%

$1M+ 13.8%

Housing overview

Metric	Value
Median home value	$434,500
Median rent / month	$1,169
Owner occupied	25.4%
Renter occupied	74.6%
Vacant	19.6%
Single-family detached	17.7%
Large apartment buildings	46.4%
Mobile homes	0.0%
Median rooms	3.9
Avg household size (owned)	1.80

Year built

Era	%
2020 or later	0.0%
2010–2019	12.6%
2000–2009	20.1%
1990–1999	4.7%
1980–1989	4.1%
1970–1979	5.0%
1960–1969	5.2%
1950–1959	3.7%
1940–1949	0.2%
1939 or earlier	44.4%

Bedrooms

Size	% of units
No bedroom (studio)	7.7%
1 bedroom	38.9%
2 bedrooms	22.3%
3 bedrooms	19.6%
4 bedrooms	9.9%
5+ bedrooms	1.6%

Vehicles per household

Vehicles	% of households
No vehicle	8.8%
1 vehicle	58.1%
2 vehicles	24.5%
3 or more	8.5%

Heating fuel

Fuel type	%
Utility gas	19.7%
Electricity	80.2%
Propane / LP gas	0.1%

Households & families

Household type	Count	%
Married-couple family	249	15.1%
Cohabiting couple	142	8.6%
Male householder, no spouse	739	44.8%
Female householder, no spouse	521	31.6%
Households with children under 18	95	5.8%
Households with seniors (65+)	226	13.7%
Average household size	1.71

Marital status

Status	Male	Female
Never married	76.4%	81.1%
Married	12.2%	7.7%
Separated	1.3%	0.5%
Widowed	0.4%	3.7%
Divorced	9.6%	7.0%

Education

Less than 9th grade 1.3%

Some HS, no diploma 6.1%

HS graduate 18.8%

Some college, no degree 21.9%

Associate's degree 5.3%

Bachelor's degree 25.6%

Graduate / professional 21.0%

Metric	%
HS diploma or higher	92.6%
Bachelor's or higher	46.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	24	0.6%
Kindergarten	0	0.0%
Elementary school	98	2.3%
High school	13	0.3%
College / grad school	4,197	96.9%

Employment

Industry of employment

Education & healthcare 26.1%

Arts, food & hospitality 23.6%

Retail trade 14.4%

Construction 9.3%

Professional & management 6.8%

Transportation & utilities 6.0%

Manufacturing 3.7%

Finance & real estate 3.3%

Other services 2.6%

Wholesale trade 1.8%

Information 1.6%

Public administration 1.0%

Occupation

Category	%
Management, business & arts	34.9%
Service	22.1%
Sales & office	24.7%
Natural resources & construction	9.2%
Production & transportation	9.2%

Employment type

Type	%
Private sector	86.5%
Government	12.2%
Self-employed	1.4%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	65.2%
Carpool	4.2%
Public transit	1.3%
Walk	22.8%
Work from home	5.9%
Other means	0.7%
Avg commute (minutes)	14.5

Poverty

All people 28.4%

Under 18 years 10.8%

18 and over 29.3%

Married-couple families 0.0%

Female-led households 27.7%

Income support

Source	% of households
Social Security	20.3%
Retirement income	8.5%
Supplemental Security	6.8%
Cash public assistance	1.2%
Food stamps / SNAP	11.6%

Health indicators

Condition	%
Obesity	28.3%
High blood pressure	25.0%
High cholesterol	20.9%
Diabetes	7.9%
Heart disease	3.9%
Stroke	2.4%
Asthma	12.6%
Arthritis	14.7%
Kidney disease	2.2%
Pulmonary disease	5.5%
Cancer	2.8%

Behavior / access	%
Smoking	18.0%
Binge drinking	16.2%
No physical activity	23.4%
Less than 7 hrs sleep	35.7%
Depression	29.3%
Fair or poor health	14.8%
Poor mental health	22.9%
Poor physical health	9.3%
No health insurance	16.9%
Visited doctor (checkup)	72.1%
Visited dentist	55.0%
Cholesterol screening	78.9%
Teeth loss	26.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	129	2.0%

Disability	%
Any disability	10.4%
Under 18	2.5%
18–64 years	8.5%
65 and over	43.6%

Health insurance coverage

Type	%
Private insurance	76.4%
Public insurance	13.5%
No insurance	12.8%
Uninsured under 19	6.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	6,452	99.4%
Spanish	75	1.2%
Other Indo-European	35	0.5%
Asian & Pacific Islander	6	0.1%
Other languages	28	0.4%

Place of birth & citizenship

Origin	Count	%
Native born (US)	6,302	97.0%
Born in same state	6,244	96.2%
Born in different state	4,182	64.4%
Foreign born	58	0.9%
Naturalized citizen	192	3.0%
Not a US citizen	45	23.4%

Ancestry

Ancestry	Count	%
Arab	1,241	19.1%
Italian	499	7.7%
French	454	7%
Irish	47	0.7%

Ancestry	Count	%
Polish	35	0.5%
German	17	0.3%
English	6	0.1%

Technology access

Metric	% of households
Computer access	25.4%
Internet access	96.1%

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

Frequently asked questions about ZIP code 37403

What city is ZIP code 37403 in?

ZIP code 37403 is primarily assigned to Chattanooga, Tennessee.

What county is ZIP code 37403 in?

ZIP code 37403 falls within Hamilton County, Tennessee.

Is ZIP code 37403 mostly rentals?

75% of occupied units in ZIP code 37403 are renter-occupied.

What is the poverty rate in ZIP code 37403?

28% of residents in ZIP code 37403 live below the poverty line, above the national average.

How educated is the population of ZIP code 37403?

47% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the typical home value in ZIP code 37403?

The median home value in ZIP code 37403 is $434,500.

What timezone is ZIP code 37403 in?

ZIP code 37403 observes the EST timezone.