Residential delivery area · Tennessee
ZIP Code 37138: Old Hickory, TN
ZIP code 37138 uses the postal name Old Hickory, Tennessee and lies mostly in Davidson County (70% of its land) with the rest in Wilson County (Census 2020 ZIP-county file). About 23,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $85,149 (Census Bureau, ACS 2020-2024). Most of its land (70%) lies in the city of Nashville-Davidson.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Old Hickory · its only residential ZIP
- County
- Davidson County (70%); Wilson County (30%)
- Census places
- Nashville-Davidson (70%); Green Hill (18%) census-designated place; Mount Juliet (5%)
- Metro area
- Nashville-Davidson--Murfreesboro--Franklin, TN
- House districts
- TN-5 (51%), TN-6 (49%) 119th Congress, by share of land
- State
- Tennessee
- Time zone
- Central
- Land area
- 17.9 sq mi · 1,259 people per sq mi
Where is ZIP code 37138?
37138 centers on 36.238°, -86.607° and covers 17.9 square miles of land plus 2.7 of water. It borders 4 ZIP codes: 37115, 37076, 37075, 37122.
The map draws ZIP code areas only. For the streets inside 37138, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 37138 compare with the rest of Davidson County?
| Measure | 37138 | In Davidson County | In TN |
|---|---|---|---|
| People (ACS 2020-2024) | 22,575 | 16th of 35 | 106th of 636 |
| Median household income | $85k | 15th of 31 | 80th of 425 |
| Median home value | $363k | 22nd of 31 | 74th of 436 |
Its median household income is higher than in 68% of U.S. residential ZIP codes, and it is denser than 80% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 37138?
The 2020 Census counted 23,631 people in 37138; the ACS, which samples households over 2020-2024, estimates 22,575. Between the 2010 and 2020 censuses its population grew 6.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 22,575
- 2020 Census count
- 23,631+6.5% since 2010 (22,191)
- Households
- 9,708
- Median age
- 44.1
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 37138?
Of the 22,575 people the ACS estimates in 37138, 21.2% are under 18 and 18.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (79.6%).
- Under 1821.2%
- 18 to 6460.4%
- 65 and older18.3%
- White, not Hispanic79.6%
- Black, not Hispanic9.9%
- Hispanic or Latino5.3%
- Other or two or more4.0%
- Asian, not Hispanic1.2%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 37138 earn?
Median household income is $85,149 (ACS 2020-2024), the 15th highest of the 31 ranked ZIP codes in Davidson County. It is not measurably different from 2015-2019 ($89,400 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $85,149
- Income per person
- $47,633
- Below the poverty line
- 8.2%
- Unemployed (of the labor force)
- 2.6%
- Adults 25+ with a bachelor's degree
- 34.3%
- Adjusted gross income per tax return, 2022
- $91,18011,960 returns; wages 65% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 37138?
FHFA's house price index for 37138, built from repeat sales and appraisals of the same homes, rose 131% from 2015 to 2025 and rose 54% from 2020 to 2025, and moved +3.6% in 2025.
- Median home value (owners' estimate)
- $363,000
- Median gross rent
- $1,526
- Homes owned by their occupants
- 77.2%
- Housing units
- 10,248
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 37138?
352 business establishments had a location in this ZIP code in 2023, 18 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade58
- Other services (except public administration)49
- Professional, scientific, and technical services33
- Construction31
- Health care and social assistance29
- Accommodation and food services25
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 37138?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 37115 | Madison | 40,615 | $55k | 5.2 mi |
| 37076 | Hermitage | 39,017 | $75k | 6.6 mi |
| 37075 | Hendersonville | 73,522 | $102k | 7.1 mi |
| 37122 | Mount Juliet | 68,492 | $113k | 7.9 mi |
| 37214 | Nashville | 29,805 | $72k | 5.7 mi (near) |
| 37216 | Nashville | 19,038 | $87k | 6.9 mi (near) |
| 37206 | Nashville | 28,545 | $96k | 8.0 mi (near) |
| 37210 | Nashville | 17,725 | $50k | 9.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.