ZIP code · Old Hickory · Tennessee · United States
ZIP code 37138 — Old Hickory
ZIP code 37138 serves Old Hickory, Tennessee.
- Postal code
- 37138Single source Value from one source, not cross-checked.
- City
- Old Hickory
- County
- Davidson FIPS 47037
- State
- Tennessee
- Country
- United States
- Coordinates
- 36.2416, -86.6117 — precision precise (locality)
View on OpenStreetMap - Population
- 22,539 (ZCTA, ACS 5-year)
- Population density
- 1,257 / sq mi
- Land area
- 17.9 sq mi (46.4 km²) (ZCTA, ACS 5-year)
- Median household income
- $87,450
- Per-capita income
- $48,009
- Median age
- 44.1
- Households
- 9,456
- Housing units
- 9,905
- Median home value
- $347,500
- Median gross rent
- $1,427 / month
- Congressional districts
- TN-5 (also TN-6) (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 37138 with another ZIP · ZIPs within 25 miles · distance from 37138
Map of ZIP code 37138
Climate — monthly normals
Warmest month Jul (avg high 89°F), coldest Jan (avg low 28°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 46 | 51 | 60 | 70 | 78 | 85 | 89 | 88 | 82 | 72 | 59 | 50 |
| Avg low °F | 28 | 30 | 38 | 47 | 56 | 65 | 68 | 67 | 61 | 49 | 38 | 32 |
| Precip in | 4.3 | 4.7 | 4.9 | 5.2 | 5.4 | 4.4 | 4.8 | 4.6 | 4.0 | 3.5 | 4.0 | 4.8 |
NOAA 1991–2020 climate normals from the nearest station: OLD HICKORY WFO (2.7 mi) · NOAA NCEI
Places in ZIP 37138
- 4 schools
- 3 doctors & dentists
- 2 supermarkets
- 18 restaurants & cafés
- 2 bars & pubs
- 8 parks
- 3 playgrounds
- 1 libraries
- 1 post offices
- 17 places of worship
- 6 gas 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