37308 ZIP Code — Birchwood, TN

Hamilton County, Tennessee

ZIP code 37308 is located in Birchwood, Tennessee, within Hamilton County. It covers approximately 37.00 square miles and serves a population of 2,663 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 423.

About ZIP code 37308

The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $213,500. Owner-occupancy is high at 84%, well above the national average.

Median household income is $67,140. SNAP benefit usage at 18% of households reflects economic stress in the area. 36% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is production, transportation, and material moving, with manufacturing as the leading industry. An above-average commute of 36 minutes suggests many residents work outside the immediate area.

College attainment at 12% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of smoking (25%) compared to national benchmarks.

Overall, ZIP code 37308 reflects a community defined by a trades-oriented workforce, high homeownership, a significant Social Security-dependent population, and elevated reliance on food assistance.

2,663

population

37.00

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

37308 ZIP code map

Cities in ZIP code 37308

Below are the cities the US Postal Service accepts for ZIP code 37308. Using any city not on this list may result in mail delivery delays.

City	Status
Birchwood	Preferred

Nearby ZIP codes

37336 Georgetown (4.2 mi) 37304 Bakewell (7.8 mi) 37373 Sale Creek (8.1 mi) 37341 Harrison (9.7 mi) 37312 Cleveland (10.1 mi) 37379 Soddy Daisy (10.6 mi) 37321 Dayton (12.2 mi) 37338 Graysville (12.7 mi) 37310 Charleston (13.2 mi) 37309 Calhoun (13.6 mi) 37353 Mc Donald (14.4 mi) 37322 Decatur (14.9 mi)

Demographics updated 05/2026

Population
Total population	2,663
Population density	72 / sq mi
State FIPS	47
County FIPS	065

Geography
Land area	37.00 sq mi
Water area	5.70 sq mi
Latitude	35.3336
Longitude	-84.9953
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	35.1%	44.3%	45.7%
$50k – $100k	38.8%	30.0%	30.9%
$100k – $200k	20.4%	19.5%	18.3%
Over $200k	5.6%	6.2%	5.1%

Demographics & statistics

2,663

Population

People per sq mi

38.4

Median age

$67,140

Median household income

$33,034

Per capita income

$213,500

Median home value

$691

Median monthly rent

84.2%

Home ownership

7.7%

Poverty rate

3.5%

Unemployment

1,069

Housing units

12.4%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

138

10–14

131

15–19

20–24

238

25–34

226

132

35–44

125

190

45–54

179

136

55–59

129

108

60–64

102

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	631	23.7%
18 and over	2,032	76.3%
65 and over	365	13.7%
Median age	38.4 years

Race & ethnicity

White 96.4%

Two or more races 1.4%

Hispanic or Latino 1.2%

Black or African American 0.9%

Group	Count	%
White	2,600	96.4%
Two or more races	39	1.4%
Hispanic or Latino	33	1.2%
Black or African American	24	0.9%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	35.1%	44.3%	45.7%
$50k – $100k	38.8%	30.0%	30.9%
$100k – $200k	20.4%	19.5%	18.3%
Over $200k	5.6%	6.2%	5.1%

Under $10k 1.4%

$10k–$15k 6.2%

$15k–$25k 10.2%

$25k–$35k 5.0%

$35k–$50k 3.4%

$50k–$75k 33.4%

$75k–$100k 18.0%

$100k–$150k 12.4%

$150k–$200k 6.0%

$200k+ 4.1%

Range	% of households
Under $10k	1.4%
$10k–$15k	6.2%
$15k–$25k	10.2%
$25k–$35k	5.0%
$35k–$50k	3.4%
$50k–$75k	33.4%
$75k–$100k	18.0%
$100k–$150k	12.4%
$150k–$200k	6.0%
$200k+	4.1%
Median income	$67,140

Housing

Home values

Under $50k 6.2%

$50k–$100k 14.1%

$100k–$150k 8.8%

$150k–$200k 16.6%

$200k–$300k 25.3%

$300k–$500k 22.9%

$500k–$1M 5.5%

$1M+ 0.7%

Housing overview

Metric	Value
Median home value	$213,500
Median rent / month	$691
Owner occupied	84.2%
Renter occupied	15.8%
Vacant	16.9%
Single-family detached	64.4%
Large apartment buildings	0.4%
Mobile homes	33.6%
Median rooms	5.7
Avg household size (owned)	2.52

Year built

Era	%
2020 or later	2.8%
2010–2019	11.7%
2000–2009	28.0%
1990–1999	21.1%
1980–1989	20.3%
1970–1979	7.1%
1960–1969	5.0%
1950–1959	0.7%
1940–1949	0.7%
1939 or earlier	2.6%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	2.3%
2 bedrooms	17.2%
3 bedrooms	60.2%
4 bedrooms	15.5%
5+ bedrooms	4.8%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	23.2%
2 vehicles	40.8%
3 or more	36.0%

Heating fuel

Fuel type	%
Utility gas	0.7%
Electricity	85.5%
Propane / LP gas	13.1%
Wood	0.7%

Households & families

Household type	Count	%
Married-couple family	518	50.7%
Cohabiting couple	69	6.8%
Male householder, no spouse	259	25.3%
Female householder, no spouse	176	17.2%
Households with children under 18	329	32.2%
Households with seniors (65+)	327	32.0%
Average household size	2.61

Marital status

Status	Male	Female
Never married	19.6%	14.2%
Married	46.1%	55.4%
Separated	0.0%	1.4%
Widowed	8.0%	13.6%
Divorced	26.4%	15.4%

Education

Less than 9th grade 5.2%

Some HS, no diploma 14.1%

HS graduate 33.7%

Some college, no degree 26.0%

Associate's degree 8.6%

Bachelor's degree 8.1%

Graduate / professional 4.4%

Metric	%
HS diploma or higher	80.7%
Bachelor's or higher	12.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	17	2.9%
Elementary school	394	67.8%
High school	77	13.3%
College / grad school	93	16.0%

Employment

Industry of employment

Manufacturing 21.7%

Education & healthcare 20.5%

Transportation & utilities 11.0%

Professional & management 10.8%

Construction 10.2%

Retail trade 9.6%

Other services 5.5%

Wholesale trade 4.3%

Finance & real estate 3.7%

Public administration 1.1%

Arts, food & hospitality 1.0%

Agriculture & mining 0.5%

Occupation

Category	%
Management, business & arts	23.9%
Service	10.9%
Sales & office	26.1%
Natural resources & construction	12.8%
Production & transportation	26.3%

Employment type

Type	%
Private sector	83.9%
Government	10.9%
Self-employed	5.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	75.7%
Carpool	14.0%
Public transit	0.0%
Walk	0.7%
Work from home	9.6%
Other means	0.0%
Avg commute (minutes)	35.8

Poverty

All people 7.7%

Under 18 years 7.1%

18 and over 7.8%

Married-couple families 6.8%

Female-led households 6.7%

Income support

Source	% of households
Social Security	35.9%
Retirement income	22.6%
Supplemental Security	8.4%
Cash public assistance	5.2%
Food stamps / SNAP	17.5%

Health indicators

Condition	%
Obesity	33.0%
High blood pressure	38.1%
High cholesterol	37.1%
Diabetes	12.2%
Heart disease	7.4%
Stroke	3.4%
Asthma	10.5%
Arthritis	29.4%
Kidney disease	3.0%
Pulmonary disease	9.5%
Cancer	6.7%

Behavior / access	%
Smoking	24.6%
Binge drinking	15.1%
No physical activity	25.6%
Less than 7 hrs sleep	34.7%
Depression	27.6%
Fair or poor health	16.9%
Poor mental health	17.6%
Poor physical health	12.3%
No health insurance	16.1%
Visited doctor (checkup)	73.4%
Visited dentist	57.8%
Cholesterol screening	89.8%
Teeth loss	17.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	93	4.6%

Disability	%
Any disability	21.4%
Under 18	7.6%
18–64 years	17.6%
65 and over	62.5%

Health insurance coverage

Type	%
Private insurance	71.4%
Public insurance	37.6%
No insurance	6.9%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,543	95.5%
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)	2,645	99.3%
Born in same state	2,645	99.3%
Born in different state	2,050	77.0%
Foreign born	0	0.0%
Naturalized citizen	18	0.7%
Not a US citizen	18	100.0%

Ancestry

Ancestry	Count	%
Arab	437	16.4%
Italian	327	12.3%
French	149	5.6%
Polish	15	0.6%

Ancestry	Count	%
German	14	0.5%
English	9	0.3%
Norwegian	7	0.3%
Dutch	7	0.3%

Technology access

Metric	% of households
Computer access	38.4%
Internet access	94.1%

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

Frequently asked questions about ZIP code 37308

What city is ZIP code 37308 in?

ZIP code 37308 is primarily assigned to Birchwood, Tennessee.

What county is ZIP code 37308 in?

ZIP code 37308 falls within Hamilton County, Tennessee.

How educated is the population of ZIP code 37308?

12% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Is ZIP code 37308 mostly owner-occupied?

84% of occupied units in ZIP code 37308 are owner-occupied, well above the national average.

Does ZIP code 37308 have a large retiree population?

36% of households in ZIP code 37308 receive Social Security income, suggesting a significant retiree or disability population.

What is the population of ZIP code 37308?

ZIP code 37308 has an estimated population of 2,663 residents, with a density of 72 people per square mile.

What timezone is ZIP code 37308 in?

ZIP code 37308 observes the EST timezone.