US ZIP Code
37166

Smithville, TN

DeKalb County  ·  Tennessee

● Active
👥 15,116 Population ↑ 7% since 2019
💰 $46,713 Median HH Income
▼ 39% below avg ↑ 6% since 2019
🎂 42.5 Median Age ↑ 10% since 2019
🏠 $183,600 Median Home Value
▼ 34% below avg ↑ 26% since 2019
🎓 25.9% College Grads
▼ 33% below avg
📊 4.6% Unemployment
≈ Avg ↓ 22% since 2019
ZIP Code Details
ZIP Code37166
CitySmithville
StateTennessee (TN)
CountyDeKalb County
Area Code615/629/931
Elevation956 ft
Latitude35.917978
Longitude-85.786903
TimezoneChicago (DST)
FIPS47041
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 50.0% (7,560) Female 50.0% (7,556) ♀

Race & Ethnicity

White: 84.4%Hispanic: 10%Black: 1.6%Asian: 1%Other: 2.7%Race
White84.4%
Hispanic10.0%
Black1.6%
Asian1.0%
Other2.7%

Age Breakdown

Under 5
8%
5–17
15%
18–24
6%
25–44
26%
45–64
27%
65+
8%

Key Indicators

Median Age42.5 yrs ↑ 10% since 2019
Avg Household Size2.39
Below Poverty21.5% ▲ 115% above avg
College Grads25.9% ▼ 33% below avg
Unemployment4.6% ≈ Avg
No HS Diploma127 (1.4%)
HS Graduate3,811 (41.4%)
Some College1,699 (18.4%)
Associates1,188 (12.9%)
Bachelors488 (5.3%)
Graduate Degree1,896 (20.6%)

Education

No HS: 1.4%HS Grad: 41.4%Some College: 18.4%Associates: 12.9%Bachelors: 5.3%Graduate: 20.6%Edu
No HS1.4%
HS Grad41.4%
Some College18.4%
Associates12.9%
Bachelors5.3%
Graduate20.6%
Housing & Income

Housing Tenure

Owner: 65.6%Renter: 34.4%Tenure
Owner65.6%
Renter34.4%

Home Value Distribution

Under $50k
9%
$50k–100k
13%
$100k–150k
14%
$150k–200k
21%
$200k–300k
18%
$300k–500k
14%
Over $500k
10%

Financials

Median HH Income$46,713 ▼ 39% below avg ↑ 6% since 2019
Median Home Value$183,600 ▼ 34% below avg ↑ 26% since 2019
Home/Income Ratio3.9x (nat avg ~3.5x)
Median Rent$768/mo ↑ 21% since 2019
Total Units7,199
Vacant Units979
Avg HH Size2.39

Income Distribution

Under $25k
26%
$25k–50k
26%
$50k–75k
17%
$75k–100k
12%
$100k–150k
14%
$150k–200k
4%
Over $200k
2%
Employment & Commute

How People Get to Work

Drove Alone
92%
Walked
1%
Work From Home
7%

Commute Time

Under 15 min
35%
15–30 min
26%
30–45 min
12%
Over 45 min
27%
Housing Stock

Year Built

Before 1940
1%
1940s–1950s
9%
1960s–1970s
15%
1980s–1990s
17%
2000+
58%

Summary

Total Units7,199
Vacant979
Owner Occupied65.6%
Renter Occupied34.4%
Avg HH Size2.39
Frequently Asked Questions
ZIP code 37166 is in Smithville, TN, in DeKalb County.
ZIP code 37166 is located in Tennessee (TN).
ZIP code 37166 is in DeKalb County, TN.
ZIP 37166 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 37166 is 15,116 people (ACS 2023).
The median household income in ZIP code 37166 is $46,713 (ACS 2023).
The median home value in ZIP 37166 is $183,600 (ACS 2023).
About ZIP Code 37166

ZIP code 37166 is located in Smithville, Tennessee, within DeKalb County. With a population of 15,116, this is a moderately populated ZIP code with a middle-aged community — the median age is 42.5 years. Economically, 37166 is a working-class ZIP code: the median household income of $46,713 is below the national average.

Real estate in ZIP code 37166 represents an affordable housing market. The median home value of $183,600 is below the national average. Renters can expect to pay around $768 per month in median rent. Homeownership is strong here — 65.6% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 26% since 2019.

The population of 37166 is primarily White (84.41%). Residents are moderately educated — 25.9% hold a bachelor's degree or higher, which is below the national average. Poverty affects a significant share of residents at 21.5%. Household income has grown by 6% since 2019.

The unemployment rate in 37166 stands at 4.6%, which is near the national average. As in most parts of the country, driving alone is the dominant commute mode at 81%.

Overall, ZIP code 37166 in Smithville, TN is characterized as working-class, moderately educated, a middle-aged community, and predominantly owner-occupied. With 15,116 residents, a median household income of $46,713, and a median home value of $183,600, it offers a clear picture of life in this part of Tennessee.