Zip code 37166: Smithville, Tennessee

Q: What city is zip code 37166?

37166 is assigned to Smithville, Tennessee. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 37166 in?

37166 is mostly in DeKalb County, but it extends into 2 other counties.

Q: What is the population of 37166?

About 15,731 people live in 37166, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 37166?

The median household income in 37166 is $52,797.

Q: What zip codes are near 37166?

The closest zip codes to 37166 are 37059, 37095, 38587, 38582, 38550.

Residential delivery areaDeKalb CountyCentral Time

Population

15,731

Median household income

$53K

U.S. $81K

Median home value

$224K

U.S. $333K

Median rent

$813/mo

U.S. $1,413

Median age

41.2

U.S. 38.9

Land area

155 sq mi

102 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 37166

37166 is a small-town zip code in Smithville, Tennessee (DeKalb County), covering 155 sq mi of land. About 15,731 people live here, or 102 per square mile. The median resident is 41.2 years old, compared with 38.9 nationally.

The median household earns $52,797 a year, 35% below the national median of $80,734. 18.7% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $224,300, or 4.2 years of median household income (U.S.: 4.1 years), which makes homes about as affordable as the national average for local earners. 72% of occupied homes are lived in by their owners, and renters pay a median of $813 a month.

20% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 26.1 minutes each way, and 7% of workers work from home. The most common jobs among working residents are in production and manufacturing; healthcare; and office and administrative support.

How 37166 compares

Sorted from highest to lowest national percentile

Healthcare workers13.8%
92nd
U.S. 9.7% · TN 9.6%83rd of 607 in TN
Rent-burdened renters63.7%
91st
WeaknessU.S. 51.1% · TN 48.8%56th of 584 in TN
Poverty rate18.7%
81st
WeaknessU.S. 12.5% · TN 13.8%169th of 600 in TN
Housing vacancy12.6%
81st
U.S. 10.1% · TN 10.2%261st of 602 in TN
Median age41.2
66th
U.S. 38.9 · TN 38.9346th of 608 in TN
Residents under 1823.9%
66th
U.S. 22% · TN 22.2%153rd of 608 in TN
Homeownership rate71.8%
58th
U.S. 65.2% · TN 66.9%391st of 600 in TN
Uninsured rate7.9%
58th
U.S. 8.4% · TN 10%378th of 607 in TN
Veterans6%
52nd
U.S. 6.2% · TN 7.3%408th of 607 in TN
Average commute26.1 min
50th
U.S. 26.4 min · TN 25.7 min360th of 597 in TN
Residents 65 and older16.4%
49th
U.S. 17.2% · TN 17.1%414th of 608 in TN
Government workers13.2%
46th
U.S. 14.5% · TN 13.7%353rd of 607 in TN
Unemployment rate4.6%
45th
U.S. 5.2% · TN 4.7%258th of 607 in TN
Self-employed workers8.5%
39th
U.S. 10% · TN 9.8%374th of 607 in TN
Foreign-born residents6.1%
34th
U.S. 14.1% · TN 6.1%96th of 608 in TN
Median home value$224,300
27th
U.S. $332,700 · TN $286,700263rd of 590 in TN
Population15,731
24th
U.S. 334,922,499 · TN 7,066,383158th of 608 in TN
Income inequality (Gini)0.404
24th
U.S. 0.483 · TN 0.476428th of 600 in TN
Bachelor's degree or higher20.1%
21st
U.S. 35.7% · TN 31.1%280th of 604 in TN
Diversity index27.2
20th
U.S. 61.4 · TN 46.4231st of 608 in TN
Median earnings per worker$39,631
20th
WeaknessU.S. $49,666 · TN $45,229401st of 606 in TN
Work from home6.6%
14th
U.S. 15.1% · TN 12.9%393rd of 608 in TN
Population density102/sq mi
13th
U.S. 95/sq mi · TN 171/sq mi280th of 608 in TN
Median household income$52,797
12th
WeaknessU.S. $80,734 · TN $69,595423rd of 590 in TN
Per capita income$26,766
11th
WeaknessU.S. $44,673 · TN $39,437476th of 608 in TN
Median gross rent$813
8th
U.S. $1,413 · TN $1,189331st of 515 in TN
Broadband access83%
8th
WeaknessU.S. 91% · TN 89.2%419th of 600 in TN
Tech workers0.4%
5th
U.S. 3.8% · TN 2.8%429th of 607 in TN

Measure	37166	DeKalb	TN	U.S.	National percentile	Rank in TN
Healthcare workers	13.8%	13%	9.6%	9.7%	92nd	83rd of 607
Rent-burdened rentersWeakness	63.7%	60.7%	48.8%	51.1%	91st	56th of 584
Poverty rateWeakness	18.7%	18.6%	13.8%	12.5%	81st	169th of 600
Housing vacancy	12.6%	14.8%	10.2%	10.1%	81st	261st of 602
Median age	41.2	41.9	38.9	38.9	66th	346th of 608
Residents under 18	23.9%	21.7%	22.2%	22%	66th	153rd of 608
Homeownership rate	71.8%	72.6%	66.9%	65.2%	58th	391st of 600
Uninsured rate	7.9%	8.7%	10%	8.4%	58th	378th of 607
Veterans	6%	7.1%	7.3%	6.2%	52nd	408th of 607
Average commute	26.1 min	29.3 min	25.7 min	26.4 min	50th	360th of 597
Residents 65 and older	16.4%	18.8%	17.1%	17.2%	49th	414th of 608
Government workers	13.2%	13.9%	13.7%	14.5%	46th	353rd of 607
Unemployment rate	4.6%	5.6%	4.7%	5.2%	45th	258th of 607
Self-employed workers	8.5%	9.6%	9.8%	10%	39th	374th of 607
Foreign-born residents	6.1%	4.8%	6.1%	14.1%	34th	96th of 608
Median home value	$224,300	$235,500	$286,700	$332,700	27th	263rd of 590
Population	15,731	20,959	7,066,383	334,922,499	24th	158th of 608
Income inequality (Gini)	0.404	0.445	0.476	0.483	24th	428th of 600
Bachelor's degree or higher	20.1%	20.8%	31.1%	35.7%	21st	280th of 604
Diversity index	27.2	23.6	46.4	61.4	20th	231st of 608
Median earnings per workerWeakness	$39,631	$39,798	$45,229	$49,666	20th	401st of 606
Work from home	6.6%	6.6%	12.9%	15.1%	14th	393rd of 608
Population density	102/sq mi	69/sq mi	171/sq mi	95/sq mi	13th	280th of 608
Median household incomeWeakness	$52,797	$53,153	$69,595	$80,734	12th	423rd of 590
Per capita incomeWeakness	$26,766	$30,133	$39,437	$44,673	11th	476th of 608
Median gross rent	$813	$839	$1,189	$1,413	8th	331st of 515
Broadband accessWeakness	83%	83.2%	89.2%	91%	8th	419th of 600
Tech workers	0.4%	1%	2.8%	3.8%	5th	429th of 607

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

15%

5–17

18–24

14%

25–34

13%

35–44

13%

45–54

13%

55–64

10%

65–74

75+

Median age

41.2

Under 18

23.9%

65 and over

16.4%

Race and ethnicity

White85%
Black1%
Hispanic10%
Asian1%
Native American0.2%
Pacific Islander0%
Other0%
Multiracial2%

Diversity index

27.2

U.S. 61.4

Foreign-born

6.1%

U.S. 14.1%

Born in state

65.9%

Language spoken at home (households)

English only

90%

Spanish

Other Indo-European

Asian / Pacific

Other

0.3%

Households

Households: 6,300
Average household size: 2.5
Family households: 66.8%
Married couples: 51.9%
Living alone: 26.5%
Veterans (of adults): 6%
Male / female: 49% / 51%

Income and poverty

Household income distribution

<$25k

22%

$25–50k

25%

$50–75k

19%

$75–100k

12%

$100–150k

15%

$150–200k

$200k+

Median household income

37166

$52,797

DeKalb Co.

$53,153

Tennessee

$69,595

United States

$80,734

Per capita income

$26,766

U.S. $44,673

Poverty rate

18.7%

U.S. 12.5%

Households earning $150K+

5.9%

U.S. 23%

Income inequality (Gini)

0.404

U.S. 0.483

Housing

Median home value

37166

$224,300

DeKalb Co.

$235,500

Tennessee

$286,700

United States

$332,700

Median gross rent

37166

$813

DeKalb Co.

$839

Tennessee

$1,189

United States

$1,413

Types of housing

Single-family

77%

2–4 units

5–19 units

20+ units

Mobile home

11%

Boat, RV, van

Housing units: 7,205
Owner-occupied: 71.8%
Vacant: 12.6%
Median year built: 1988
Median rooms: 5.6
Renters paying 30%+ of income: 63.7%
Renters paying 50%+ of income: 27.7%
Home value to income: 4.2× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

80%

Carpooled

12%

Transit

0.5%

Walked

0.8%

Bicycle

Worked from home

Other

0.0%

Commute time (one way)

<10 min

28%

10–19

25%

20–29

30–44

11%

45–59

11%

60+

15%

Average commute

26.1 min

U.S. 26.4 min

Unemployment

4.6%

U.S. 5.2%

In labor force

56.3%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Production

19%

Healthcare

14%

Office and admin

12%

Construction and repair

10%

Sales

Transportation and moving

Management

Cleaning and personal care

Business and finance

Education

Food service

Police and fire

Legal and social services

Engineering and science

Farming, fishing and forestry

Arts, media and sports

0.6%

Computer and math

0.4%

Industries

Manufacturing

25%

Health care and social assistance

14%

Retail

11%

Construction

Transportation, warehousing and utilities

Other services

Finance, insurance and real estate

Public administration

Education

Restaurants and hotels

Professional and technical services

Agriculture and mining

Admin, support and management

Arts and recreation

Wholesale

0.6%

Information

0.4%

Median earnings per worker

$39,631

U.S. $49,666

Self-employed

8.5%

U.S. 10%

Government workers

13.2%

U.S. 14.5%

Nonprofit workers

10.9%

U.S. 8.8%

Median earnings by type of work

Type of work	37166	U.S.
Management, business, science and arts	$59,583	$74,888
Service	$20,149	$26,804
Sales and office	$28,750	$40,476
Construction and maintenance	$44,418	$49,199
Production and transportation	$36,063	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

17%

High school

39%

Some college

20%

Associate's

Bachelor's

13%

Graduate

High school graduate or higher: 83.4%
Bachelor's degree or higher: 20.1%
Graduate or professional degree: 7.3%
Households with broadband: 83%
Cable, fiber or DSL: 72.5%
No internet access: 13.2%
Without health insurance: 7.9%
Limited-English households: 2.3%

Geography

City (USPS): Smithville
State: Tennessee
County: DeKalb County
Center point: 35.9180° N, 85.7869° W
Land area: 155 sq mi
Water area: 11 sq mi
Time zone: Central Time (UTC-6, UTC-5 in summer)
Zip type: Residential delivery area

37166 spans 3 counties

DeKalb County91% of land
Warren County8% of land
Cannon County2% of land

Cities and towns within this zip

Smithville4% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 37166

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
37059	Dowelltown, TN	8 mi	1,590	$49,510	$232,200
37095	Liberty, TN	10 mi	1,697	$64,792	$189,200
38587	Walling, TN	10 mi	1,446	$51,500	$249,600
38582	Silver Point, TN	13 mi	1,729	$93,333	$245,300
38550	Campaign, TN	13 mi	17	—	—
38569	Lancaster, TN	14 mi	390	—	$362,800
38579	Quebeck, TN	15 mi	1,475	$51,940	$229,100
38544	Baxter, TN	15 mi	8,175	$69,823	$245,100
38581	Rock Island, TN	15 mi	4,079	$55,985	$182,500
37190	Woodbury, TN	16 mi	9,525	$64,792	$274,200
37111	McMinnville, TN · PO box	16 mi	—	—	—
37012	Alexandria, TN	16 mi	2,118	$49,265	$237,600

Zip codes like 37166 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 37166

What city is zip code 37166?

37166 is assigned to Smithville, Tennessee. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 37166 in?

37166 is mostly in DeKalb County, but it extends into 2 other counties.

What is the population of 37166?

About 15,731 people live in 37166, according to the Census Bureau's American Community Survey.

What time zone is 37166 in?

37166 is in Central Time.

What is the median household income in 37166?

The median household income in 37166 is $52,797.

What zip codes are near 37166?

The closest zip codes to 37166 are 37059, 37095, 38587, 38582, 38550.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 37166, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.