37151 ZIP Code — Riddleton, TN

Smith County, Tennessee

ZIP code 37151 is located in Riddleton, Tennessee, within Smith County. It covers approximately 16.99 square miles and serves a population of 443 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 615.

About ZIP code 37151

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 $251,300. Owner-occupancy is high at 78%, well above the national average.

Median household income is $92,674. SNAP benefit usage at 22% of households reflects economic stress in the area.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 29 minutes is near the national average.

Educational attainment is near the national average, with 22% of residents holding a bachelor's degree or higher.

Health indicators show elevated rates of smoking (28%) compared to national benchmarks.

Overall, ZIP code 37151 reflects a community defined by high homeownership and elevated reliance on food assistance.

443

population

16.99

sq mi land

Standard

ZIP type

Central (CT)

timezone

37151 ZIP code map

Cities in ZIP code 37151

Below are the cities the US Postal Service accepts for ZIP code 37151. Using any city not on this list may result in mail delivery delays.

City	Status
Riddleton	Preferred

Nearby ZIP codes

37030 Carthage (5.4 mi) 37057 Dixon Springs (5.8 mi) 38563 Gordonsville (8.4 mi) 37074 Hartsville (8.6 mi) 37145 Pleasant Shade (8.9 mi) 38547 Brush Creek (11.1 mi) 38560 Elmwood (12 mi) 37087 Lebanon (12.7 mi) 37031 Castalian Springs (13.9 mi) 37083 Lafayette (14.8 mi) 38567 Hickman (14.9 mi) 38552 Chestnut Mound (15.2 mi)

Demographics updated 05/2026

Population
Total population	443
Population density	26 / sq mi
State FIPS	47
County FIPS	159

Geography
Land area	16.99 sq mi
Water area	0.74 sq mi
Latitude	36.3196
Longitude	-86.0507
Timezone	Central (CT)
Area code	615

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	50.2%	53.4%	45.7%
$50k – $100k	26.6%	28.9%	30.9%
$100k – $200k	16.5%	14.5%	18.3%
Over $200k	6.7%	3.2%	5.1%

Demographics & statistics

443

Population

People per sq mi

49.9

Median age

$92,674

Median household income

$39,081

Per capita income

$251,300

Median home value

Median monthly rent

78.3%

Home ownership

11.7%

Poverty rate

0.0%

Unemployment

221

Housing units

21.9%

Bachelor's or higher

Age distribution

Male Female

Under 5

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	31	7.0%
18 and over	412	93.0%
65 and over	60	13.5%
Median age	49.9 years

Race & ethnicity

White 73.7%

Two or more races 10.1%

Hispanic or Latino 8.8%

Black or African American 7.4%

Group	Count	%
White	358	73.7%
Two or more races	49	10.1%
Hispanic or Latino	43	8.8%
Black or African American	36	7.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	50.2%	53.4%	45.7%
$50k – $100k	26.6%	28.9%	30.9%
$100k – $200k	16.5%	14.5%	18.3%
Over $200k	6.7%	3.2%	5.1%

Under $10k 18.2%

$15k–$25k 6.6%

$25k–$35k 3.0%

$35k–$50k 8.6%

$50k–$75k 8.1%

$75k–$100k 25.8%

$100k–$150k 12.6%

$150k–$200k 5.6%

$200k+ 11.6%

Range	% of households
Under $10k	18.2%
$15k–$25k	6.6%
$25k–$35k	3.0%
$35k–$50k	8.6%
$50k–$75k	8.1%
$75k–$100k	25.8%
$100k–$150k	12.6%
$150k–$200k	5.6%
$200k+	11.6%
Median income	$92,674

Housing

Home values

$50k–$100k 3.9%

$100k–$150k 8.4%

$150k–$200k 11.0%

$200k–$300k 62.6%

$300k–$500k 10.3%

$500k–$1M 3.9%

Housing overview

Metric	Value
Median home value	$251,300
Median rent / month	$0
Owner occupied	78.3%
Renter occupied	21.7%
Vacant	25.0%
Single-family detached	89.0%
Large apartment buildings	0.0%
Mobile homes	11.0%
Median rooms	6.2
Avg household size (owned)	2.52

Year built

Era	%
2020 or later	6.1%
2010–2019	3.0%
2000–2009	9.8%
1990–1999	24.6%
1980–1989	4.9%
1970–1979	33.3%
1960–1969	3.8%
1950–1959	0.0%
1940–1949	0.0%
1939 or earlier	14.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	1.9%
2 bedrooms	28.0%
3 bedrooms	29.5%
4 bedrooms	40.5%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	18.2%
1 vehicle	17.7%
2 vehicles	12.6%
3 or more	51.5%

Heating fuel

Fuel type	%
Utility gas	45.5%
Electricity	54.5%

Households & families

Household type	Count	%
Married-couple family	143	72.2%
Cohabiting couple	0	0.0%
Male householder, no spouse	42	21.2%
Female householder, no spouse	13	6.6%
Households with children under 18	26	13.1%
Households with seniors (65+)	36	18.2%
Average household size	2.24

Marital status

Status	Male	Female
Never married	11.3%	26.9%
Married	65.6%	73.1%
Separated	0.0%	0.0%
Widowed	0.0%	0.0%
Divorced	23.1%	0.0%

Education

Less than 9th grade 0.0%

Some HS, no diploma 0.0%

HS graduate 40.1%

Some college, no degree 38.0%

Associate's degree 0.0%

Bachelor's degree 18.2%

Graduate / professional 3.7%

Metric	%
HS diploma or higher	100.0%
Bachelor's or higher	21.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	16	14.8%
High school	6	5.6%
College / grad school	86	79.6%

Employment

Industry of employment

Education & healthcare 30.6%

Construction 25.5%

Retail trade 20.1%

Manufacturing 11.9%

Wholesale trade 3.2%

Transportation & utilities 3.2%

Finance & real estate 2.9%

Agriculture & mining 2.5%

Occupation

Category	%
Management, business & arts	35.6%
Service	22.3%
Sales & office	16.2%
Natural resources & construction	4.0%
Production & transportation	21.9%

Employment type

Type	%
Private sector	58.3%
Government	16.9%
Self-employed	20.1%
Unpaid family workers	4.7%

Commute

Method	%
Drive alone	97.4%
Carpool	0.0%
Public transit	0.0%
Walk	0.0%
Work from home	2.6%
Other means	0.0%
Avg commute (minutes)	28.6

Poverty

All people 11.7%

Under 18 years 29.0%

18 and over 10.4%

Married-couple families 0.0%

Female-led households 100.0%

Income support

Source	% of households
Social Security	24.7%
Retirement income	31.3%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	21.7%

Health indicators

Condition	%
Obesity	39.7%
High blood pressure	38.4%
High cholesterol	34.3%
Diabetes	13.0%
Heart disease	7.4%
Stroke	3.7%
Asthma	10.9%
Arthritis	30.1%
Kidney disease	3.2%
Pulmonary disease	10.1%
Cancer	6.1%

Behavior / access	%
Smoking	27.5%
Binge drinking	14.3%
No physical activity	29.7%
Less than 7 hrs sleep	37.9%
Depression	27.6%
Fair or poor health	19.8%
Poor mental health	18.5%
Poor physical health	13.5%
No health insurance	19.8%
Visited doctor (checkup)	73.1%
Visited dentist	49.9%
Cholesterol screening	88.3%
Teeth loss	21.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	31	7.5%

Disability	%
Any disability	5.4%
Under 18	19.4%
18–64 years	3.4%
65 and over	10.0%

Health insurance coverage

Type	%
Private insurance	83.5%
Public insurance	18.5%
No insurance	9.7%
Uninsured under 19	22.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	434	98.0%
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)	443	100.0%
Born in same state	443	100.0%
Born in different state	347	78.3%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
French	106	23.9%
Italian	73	16.5%
Arab	69	15.6%

Ancestry	Count	%
German	8	1.8%
Polish	8	1.8%

Technology access

Metric	% of households
Computer access	44.7%
Internet access	75.3%

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

Frequently asked questions about ZIP code 37151

What city is ZIP code 37151 in?

ZIP code 37151 is primarily assigned to Riddleton, Tennessee.

What county is ZIP code 37151 in?

ZIP code 37151 falls within Smith County, Tennessee.

What is the population of ZIP code 37151?

ZIP code 37151 has an estimated population of 443 residents, with a density of 26 people per square mile.

What is the median household income in ZIP code 37151?

The median household income in ZIP code 37151 is $92,674, above the national median of ~$75,000.

What is the typical home value in ZIP code 37151?

The median home value in ZIP code 37151 is $251,300.

What timezone is ZIP code 37151 in?

ZIP code 37151 observes the CST timezone.