ZIP code · Smithville · Tennessee · United States
ZIP code 37166 — Smithville
ZIP code 37166 serves Smithville, Tennessee.
- Postal code
- 37166Single source Value from one source, not cross-checked.
- City
- Smithville
- County
- DeKalb FIPS 47041
- State
- Tennessee
- Country
- United States
- Coordinates
- 35.9299, -85.8046 — precision precise (locality)
View on OpenStreetMap - Population
- 15,116 (ZCTA, ACS 5-year)
- Population density
- 98 / sq mi
- Land area
- 154.6 sq mi (400.4 km²) (ZCTA, ACS 5-year)
- Median household income
- $46,713
- Per-capita income
- $25,575
- Median age
- 42.5
- Households
- 6,220
- Housing units
- 7,199
- Median home value
- $183,600
- Median gross rent
- $768 / month
- Congressional districts
- TN-6 (also TN-4) (119th Congress)
- USDA hardiness zone
- 7b (5 to 10 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Chicago (UTC−6 / UTC−5 DST)
Tools: compare 37166 with another ZIP · ZIPs within 25 miles · distance from 37166
Map of ZIP code 37166
Climate — monthly normals
Warmest month Jul (avg high 88°F), coldest Jan (avg low 26°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 47 | 52 | 60 | 70 | 78 | 85 | 88 | 87 | 82 | 72 | 60 | 51 |
| Avg low °F | 26 | 28 | 35 | 42 | 53 | 61 | 66 | 64 | 56 | 43 | 33 | 28 |
| Precip in | 4.9 | 5.1 | 5.7 | 5.0 | 4.9 | 5.1 | 5.2 | 3.9 | 4.0 | 3.3 | 4.2 | 5.7 |
NOAA 1991–2020 climate normals from the nearest station: SMITHVILLE 2 SE (1.2 mi) · NOAA NCEI
Places in ZIP 37166
- 8 schools
- 1 colleges & universities
- 2 hospitals & clinics
- 1 doctors & dentists
- 3 supermarkets
- 18 restaurants & cafés
- 4 parks
- 2 playgrounds
- 1 gyms & sports centres
- 1 libraries
- 35 places of worship
- 1 banks
- 7 gas stations
- 1 EV charging stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page