ZIP code 37166
Where is ZIP code 37166?
Smithville, Tennessee
DeKalb County · Standard ZIP code
ZIP code 37166 belongs to Smithville, Tennessee in DeKalb County. 37166 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Central Time zone and uses area codes 615, 629 and 931. About 15,731 people live in the 37166 area, where the median household income is $52,797. The closest ZIP codes are 37059 (Dowelltown, 6.4 mi northwest), 37095 (Liberty, 10.6 mi northwest) and 38587 (Walling, 11.2 mi east).
| ZIP code | 37166 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Smithville |
| State | Tennessee (TN) |
| County | DeKalb County |
| Time zone | Central Time · now |
| Area codes | 615, 629, 931 |
| Coordinates | 35.9299, -85.8046 map |
| 3-digit prefix | 371 |
Population and income in 37166
| Population | 15,731 · higher than 75% of Tennessee ZIP codes |
|---|---|
| People per square mile | 102 · higher than 54% of Tennessee ZIP codes |
| Median age | 41.2 years · lower than 57% of Tennessee ZIP codes |
| Men / women | 49% / 51% |
| Median household income | $52,797 · lower than 71% of Tennessee ZIP codes |
| Income per person | $26,766 |
| Below the poverty line | 19% |
| Bachelor’s degree or higher | 20% of adults 25+ |
| Median home value | $224,300 · higher than 55% of Tennessee ZIP codes |
| Median rent | $813 a month |
| Housing units | 7,205 |
| Households | 6,300 (2.46 people on average) |
| Owners / renters | 72% / 28% |
| Land area | 154.59 sq mi (plus 11.46 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 37166. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 37166
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 37059 | Dowelltown, TN | 6.4 mi NW | Standard |
| 37095 | Liberty, TN | 10.6 mi NW | Standard |
| 38587 | Walling, TN | 11.2 mi E | Standard |
| 38569 | Lancaster, TN | 11.8 mi N | Standard |
| 38582 | Silver Point, TN | 12.4 mi N | Standard |
| 38581 | Rock Island, TN | 13.3 mi SE | Standard |
| 38567 | Hickman, TN | 14.2 mi NW | Standard |
| 38550 | Campaign, TN | 15 mi SE | PO Box only |
| 38579 | Quebeck, TN | 15.7 mi SE | Standard |
| 37190 | Woodbury, TN | 15.9 mi SW | Standard |
| 37012 | Alexandria, TN | 16.3 mi NW | Standard |
| 38544 | Baxter, TN | 16.4 mi NE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 37166 or measure the distance to another ZIP code.
How to address mail to 37166
123 MAIN ST
SMITHVILLE TN 37166
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (37166-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 37166?
- 37166 is a Smithville, Tennessee ZIP code.
- What county is 37166 in?
- ZIP code 37166 is in DeKalb County, Tennessee.
- What time zone is ZIP code 37166 in?
- 37166 is in the Central Time zone (America/Chicago).
- What area code is 37166?
- Phone numbers in ZIP code 37166 use area codes 615, 629 and 931.
- What is the population of ZIP code 37166?
- About 15,731 people live in ZIP code 37166, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 37166?
- The median household income in 37166 is $52,797 a year, lower than 71% of Tennessee ZIP codes.
- What ZIP codes are near 37166?
- The nearest ZIP codes to 37166 are 37059 (Dowelltown, 6.4 miles), 37095 (Liberty, 10.6 miles), 38587 (Walling, 11.2 miles) and 38569 (Lancaster, 11.8 miles).