Smithville ZIP Codes — Dekalb County, TN

There is one unique ZIP code in Smithville, Tennessee and it is 37166. Area code: 615/931.

ZIP codes

154.59

sq mi land

11.46

sq mi water

615/931

area code

Smithville, TN ZIP code map

About Smithville, TN

Smithville, Tennessee, is a charming city located in Dekalb County that offers a blend of small-town warmth and natural beauty. Known for its beautiful landscapes and friendly community, it attracts both residents and visitors alike. Smithville serves as a focal point for local events and serves as a gateway to the recreational opportunities found in the surrounding areas.

Location & geography

Smithville is situated in the central region of Tennessee, making it a convenient location for accessing various attractions in the state. Nearby cities include Murfreesboro, approximately 30 miles to the south, Cookeville about 24 miles to the east, Lebanon around 29 miles to the west, and Watertown, located just 16 miles away to the northwest. The city covers a land area of 154.59 square miles and has a water area of 11.46 square miles, which contributes to its scenic terrain.

Community & economy

The community of Smithville is characterized by its tight-knit atmosphere and active participation in local events. Industries in the area range from manufacturing to agriculture, which supports the local economy. Daily life in Smithville often includes enjoying outdoor recreational activities such as fishing and hiking, making the most of the stunning natural surroundings.

Transportation

Smithville is accessible via major highways, including U.S. Route 70 and Tennessee State Route 56, which connect the city to broader regional networks. The nearest named airports are Nashville International Airport, located about 70 miles to the southwest, and Upper Cumberland Regional Airport, approximately 30 miles to the east. While public transit options are limited, residents usually rely on personal vehicles for commuting.

History

Smithville was founded in the early 19th century and has since evolved into a vibrant community that reflects the rich history of Dekalb County. The city has long been known for its agricultural roots, with various industries contributing to its growth over the decades. Notable events include the annual Smithville Fiddlers' Jamboree, which celebrates local musical talent and attracts visitors from around the region.

Did you know?

One surprising fact about Smithville is its dedication to preserving local music and culture, exemplified by the annual Fiddlers' Jamboree, which has been celebrated for over four decades. The city's landscape also features numerous lakes and parks that offer residents and visitors a chance to engage in a variety of outdoor activities.

ZIP codes for Smithville, TN (1)

ZIP code	City	County	Map
37166	Smithville	Dekalb	View map

Demographics & statistics

14,051

Population

43.2

Median age

$45,677

Median household income

$26,799

Per capita income

$169,900

Median home value

$739

Median monthly rent

64.9%

Home ownership

19.2%

Poverty rate

3.7%

Unemployment

4,757

Housing units

18.5%

Bachelor's or higher

Age distribution

Male Female

445

Under 5

445

384

5–9

385

391

10–14

392

376

15–19

376

356

20–24

356

939

25–34

939

885

35–44

886

1,032

45–54

1,034

496

55–59

497

473

60–64

473

714

65–74

714

355

75–84

356

176

85+

176

← Male

Female →

Age summary

Group	Count	%
Under 18	2,986	21.3%
18 and over	11,065	78.7%
65 and over	2,491	17.7%
Median age	43.2 years

Race & ethnicity

White 84.1%

Hispanic or Latino 5.9%

Two or more races 4.3%

Other race 3.4%

Black or African American 1.5%

Asian 0.4%

American Indian / Alaska Native 0.4%

Group	Count	%
White	12,551	84.1%
Hispanic or Latino	876	5.9%
Two or more races	649	4.3%
Other race	511	3.4%
Black or African American	217	1.5%
Asian	62	0.4%
American Indian / Alaska Native	61	0.4%

Household income

Under $10k 7.0%

$10k–$15k 6.5%

$15k–$25k 13.4%

$25k–$35k 13.5%

$35k–$50k 12.2%

$50k–$75k 18.7%

$75k–$100k 13.3%

$100k–$150k 9.7%

$150k–$200k 3.7%

$200k+ 2.0%

Range	% of households
Under $10k	7.0%
$10k–$15k	6.5%
$15k–$25k	13.4%
$25k–$35k	13.5%
$35k–$50k	12.2%
$50k–$75k	18.7%
$75k–$100k	13.3%
$100k–$150k	9.7%
$150k–$200k	3.7%
$200k+	2.0%
Median income	$45,677

Housing

Home values

Under $50k 5.6%

$50k–$100k 14.8%

$100k–$150k 17.9%

$150k–$200k 23.8%

$200k–$300k 18.7%

$300k–$500k 10.2%

$500k–$1M 7.6%

$1M+ 1.3%

Housing overview

Metric	Value
Median home value	$169,900
Median rent / month	$739
Owner occupied	64.9%
Renter occupied	35.1%
Vacant	14.4%
Single-family detached	71.1%
Large apartment buildings	0.5%
Mobile homes	16.7%
Median rooms	5.4
Avg household size (owned)	2.42

Year built

Era	%
2020 or later	0.5%
2010–2019	9.1%
2000–2009	15.1%
1990–1999	18.2%
1980–1989	8.2%
1970–1979	24.1%
1960–1969	12.7%
1950–1959	7.1%
1940–1949	2.4%
1939 or earlier	2.5%

Bedrooms

Size	% of units
No bedroom (studio)	3.5%
1 bedroom	6.1%
2 bedrooms	24.2%
3 bedrooms	57.1%
4 bedrooms	8.2%
5+ bedrooms	0.9%

Vehicles per household

Vehicles	% of households
No vehicle	9.5%
1 vehicle	25.2%
2 vehicles	37.8%
3 or more	27.5%

Heating fuel

Fuel type	%
Utility gas	36.6%
Electricity	60.9%
Propane / LP gas	1.3%
Wood	1.1%
No fuel used	0.1%

Households & families

Household type	Count	%
Married-couple family	2,870	49.3%
Cohabiting couple	271	4.7%
Male householder, no spouse	960	16.5%
Female householder, no spouse	1,722	29.6%
Households with children under 18	1,895	32.5%
Households with seniors (65+)	1,744	30.0%
Average household size	2.36

Marital status

Status	Male	Female
Never married	23.2%	17.1%
Married	60.8%	50.3%
Separated	2.2%	1.9%
Widowed	2.5%	9.3%
Divorced	11.3%	21.5%

Education

Less than 9th grade 8.6%

Some HS, no diploma 12.0%

HS graduate 41.1%

Some college, no degree 16.8%

Associate's degree 2.9%

Bachelor's degree 12.7%

Graduate / professional 5.8%

Metric	%
HS diploma or higher	79.3%
Bachelor's or higher	18.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	134	5.1%
Kindergarten	174	6.6%
Elementary school	1,226	46.8%
High school	572	21.8%
College / grad school	513	19.6%

Employment

Industry of employment

Manufacturing 23.7%

Education & healthcare 21.7%

Retail trade 11.6%

Transportation & utilities 6.8%

Construction 6.2%

Finance & real estate 5.6%

Public administration 5.0%

Professional & management 4.7%

Arts, food & hospitality 4.5%

Agriculture & mining 4.2%

Other services 3.0%

Wholesale trade 1.8%

Information 1.2%

Occupation

Category	%
Management, business & arts	27.7%
Service	15.4%
Sales & office	18.5%
Natural resources & construction	13.1%
Production & transportation	25.4%

Employment type

Type	%
Private sector	77.9%
Government	15.9%
Self-employed	6.0%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	83.7%
Carpool	11.6%
Public transit	0.0%
Walk	0.4%
Other means	0.0%
Avg commute (minutes)	27.4

Poverty

All people 19.2%

Under 18 years 27.4%

18 and over 17.1%

Married-couple families 9.3%

Female-led households 31.0%

Income support

Source	% of households
Social Security	34.5%
Retirement income	26.6%
Supplemental Security	13.7%
Cash public assistance	5.8%
Food stamps / SNAP	18.9%

Health indicators

Condition	%
High blood pressure	41.0%
High cholesterol	37.2%
Heart disease	8.4%
Stroke	4.1%
Asthma	11.0%
Arthritis	31.8%
Kidney disease	3.5%
Pulmonary disease	11.3%
Cancer	6.9%

Behavior / access	%
Binge drinking	13.5%
No physical activity	29.9%
Less than 7 hrs sleep	34.8%
Fair or poor health	21.2%
Poor mental health	18.1%
Poor physical health	14.2%
No health insurance	20.5%
Visited doctor (checkup)	74.5%
Visited dentist	50.4%
Cholesterol screening	88.6%
Teeth loss	22.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	737	6.7%

Disability	%
Any disability	24.5%
Under 18	5.0%
18–64 years	23.6%
65 and over	52.0%

Health insurance coverage

Type	%
Private insurance	59.0%
Public insurance	48.6%
Uninsured under 19	2.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	13,161	93.7%
Spanish	356	2.7%
Other Indo-European	307	2.3%
Asian & Pacific Islander	49	0.4%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	12,968	92.3%
Born in same state	12,908	91.9%
Born in different state	9,104	64.8%
Foreign born	60	0.4%
Naturalized citizen	1,083	7.7%
Not a US citizen	180	16.6%

Ancestry

Ancestry	Count	%
Arab	2,461	17.5%
Italian	1,832	13%
French	1,786	12.7%

Ancestry	Count	%
English	74	0.5%
German	45	0.3%
Polish	17	0.1%

Technology access

Metric	% of households
Computer access	41.4%
Internet access	84.8%

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

Frequently asked questions

What ZIP codes does Smithville, TN have?

Smithville, TN has one ZIP code: 37166. Each ZIP code serves a distinct delivery area within the city and surrounding region.