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Zip Code 37138 — Old Hickory, TN

ZIP Code 37138 is associated with Old Hickory, TN, in Davidson County. The listed population estimate is 22,575; estimated density is 486.2 people per square mile. Among records with population estimates, it ranks #13 of 28 in Davidson County and #106 of 619 in TN.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (36.246520, -86.619380)

Data MetricLocal Statistic
Postal / Zip Code37138
Primary CityOld Hickory
State / ProvinceTN
CountyDavidson
Total Population22,575
Population Density486.2 people/sq mi
TimezoneAmerica/Chicago

How 37138 Compares

MetricZIP 37138Davidson County recordsTN records
Population estimate22,575727,851 (sum)7,058,868 (sum)
Population Density486.2 /sq mi----
County population rank#13 of 28----
State population rank#106 of 619----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in TN

ZIP CodeCityDistancePopulation estimate
ZIP 37115Madison4.3 mi40,615
ZIP 37214Nashville6.0 mi29,805
ZIP 37216Nashville6.3 mi19,038
ZIP 37075Hendersonville6.5 mi73,522
ZIP 37076Hermitage7.3 mi39,017

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →