Zip Code 37138
Old Hickory, Tennessee — Davidson County
📍 ZIP code 37138 is in Old Hickory, Davidson County, Tennessee.
ZIP code 37138 is located in Old Hickory, Davidson County, Tennessee. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 22,539. The area code for ZIP code 37138 is 423.
Quick Answer
Zip code 37138 is in Old Hickory, Tennessee (Davidson County). It has a population of 22,539, median household income of $87,450, and median home value of $347,500.
Population
22,539
Income
$87,450
Home Value
$347,500
Climate
89°F / 28°F
About Zip Code 37138
Zip code 37138 is located in Old Hickory, Tennessee, within Davidson County. Home to approximately 22,539 residents, this area sits at an elevation of 492 ft and falls within the Central (CST/CDT) timezone. The local area code is 423.
The median household income is $87,450 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $347,500, and the cost of living index is 117 (17% above the national average of 100).
Summers average a high of 89°F while winters drop to 28°F. The area receives about 55 in of rain and 5 in of snow annually. The zip code covers 17.7 square miles of land area and 3.3 square miles of water.
Key Statistics
22,539
$87,450
$347,500
Central (CST/CDT)
423
492 ft
17.7 sq mi
44.1
9,905
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Compare With Nearby Zip Codes
| Metric | 37138 | 37115 | 37214 | 37216 | 37075 | 37076 |
|---|---|---|---|---|---|---|
| City | Old Hickory, TN | Madison, TN | Nashville, TN | Nashville, TN | Hendersonville, TN | Hermitage, TN |
| Population | 22,539 | 41,303 | 30,547 | 18,933 | 72,541 | 38,124 |
| Median Income | $87,450 | $53,034 | $71,969 | $82,134 | $97,597 | $74,555 |
| Home Value | $347,500 | $271,100 | $315,000 | $404,100 | $403,400 | $348,300 |
| Cost of Living | 117 | 82 | 100 | 120 | 130 | 102 |
| Median Age | 44.1 | 38.3 | 37.8 | 34.2 | 40.4 | 38 |
Cost of Living
100 = National Average. Old Hickory's cost of living is 17% above the national average.
vs. State Avg
Above
Affordability
Moderate
Income-to-Home
4.0x
Demographics
Zip code 37138 has a population of 22,539 people with a median age of 44.1. There are 9,905 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Old Hickory (37138) population trend from 2010 to 2024
↑ 82.0%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
89°F
28°F
55 in
5 in
Old Hickory experiences warm summers with average highs around 89°F. Winters are cool with lows averaging 28°F. The area receives about 5 in of snow per year.
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Housing & Economy
Median Home Value
$347,500
Median Household Income
$87,450
With 9,905 housing units across 17.7 square miles, 37138 has a housing density of 560 units per square mile. The home price-to-income ratio is 4.0x.
Location & Geography
Latitude
36.2408°
Longitude
-86.6152°
Land Area
17.7 sq mi
Water Area
3.3 sq mi
Nearby Zip Codes
Zip codes closest to 37138 (Old Hickory, TN) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 37138's $87,450. A way to compare Old Hickory to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 37138 (Old Hickory, TN). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Old Hickory, Tennessee?
Old Hickory, Tennessee uses zip code 37138.
What county is zip code 37138 in?
Zip code 37138 is located in Davidson County, Tennessee.
What is the population of zip code 37138?
The population of zip code 37138 is 22,539 with a median age of 44.1.
Is 37138 in Old Hickory, Tennessee?
Yes, zip code 37138 is in Old Hickory, Davidson County, Tennessee. The area code is 423.
Frequently Asked Questions
What city is zip code 37138 in?
Zip code 37138 is in Old Hickory, Tennessee. It is part of Davidson County and uses the Central (CST/CDT) timezone.
What is zip code 37138?
Zip code 37138 is a U.S. postal code in Old Hickory, Tennessee (Davidson County). It has a population of 22,539 and covers 17.7 square miles.
What is the population of zip code 37138?
The population of zip code 37138 (Old Hickory, TN) is 22,539 with a median age of 44.1. There are approximately 9,905 housing units in this area.
What is the median income in zip code 37138?
The median household income in zip code 37138 (Old Hickory, TN) is $87,450 per year. The cost of living index is 117 (100 = national average).
What is the average home price in zip code 37138?
The median home value in zip code 37138 (Old Hickory, TN) is $347,500. The cost of living index is 117 compared to the national average of 100.
What county is zip code 37138 in?
Zip code 37138 is located in Davidson County, Tennessee. The primary city is Old Hickory.
What is the area code for zip code 37138?
Zip code 37138 in Old Hickory, TN uses area code 423. It is located in the Central (CST/CDT) timezone.
Is zip code 37138 a good place to live?
Zip code 37138 (Old Hickory, TN) has a cost of living index of 117 (100 = national average), a median household income of $87,450, and median home values of $347,500. The median age is 44.1. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 37138?
The cost of living index for zip code 37138 (Old Hickory, TN) is 117, where 100 represents the national average. This area is above the national average. Median home value: $347,500.
What schools serve zip code 37138?
Zip code 37138 in Old Hickory, Tennessee is served by the local school district of Davidson County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.