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
- State
- Tennessee
- Country
- United States
- Coordinates
- 36.2416, -86.6117 — precision precise (locality)
View on OpenStreetMap - Population
- 22,539 (ZCTA, ACS 5-year)
- Median household income
- $87,450
- Median age
- 44.1
- Time zone
- America/Chicago (UTC−6 / UTC−5 DST)
- Area codes
- 615, 629Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
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). Data generated on 2026-08-21. Methodology · Report an error on this page