Residential delivery area · Tennessee
ZIP Code 38401: Columbia, TN
ZIP code 38401 uses the postal name Columbia, Tennessee and lies mostly in Maury County (96% of its land), reaching into Williamson County and Marshall County (Census 2020 ZIP-county file). About 67,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $68,475 (Census Bureau, ACS 2020-2024). By Census place, 11% of its land lies in Columbia, and 2% in smaller places; 87% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Columbia · its only residential ZIP
- County
- Maury County (96%); Williamson County (2%); Marshall County (2%)
- Census places
- Columbia
- Metro area
- Nashville-Davidson--Murfreesboro--Franklin, TN
- House districts
- TN-5 (98%), TN-7 (2%) 119th Congress, by share of land
- State
- Tennessee
- Time zone
- Central
- Land area
- 296.7 sq mi · 227 people per sq mi
- PO Box ZIPs
- 38402 also use the name Columbia
Where is ZIP code 38401?
38401 centers on 35.629°, -87.022° and covers 296.7 square miles of land plus 2.2 of water. It borders 9 ZIP codes: 37174, 38451, 38482, 38487, 38474, 37179, 37091, 37064, 37034.
The map draws ZIP code areas only. For the streets inside 38401, 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 38401 compare with the rest of Maury County?
| Measure | 38401 | In Maury County | In TN |
|---|---|---|---|
| People (ACS 2020-2024) | 67,482 | 1st of 9 | 8th of 636 |
| Median household income | $69k | 3rd of 6 | 172nd of 425 |
| Median home value | $339k | 4th of 6 | 95th of 436 |
Its median household income is higher than in 44% of U.S. residential ZIP codes, and it is denser than 64% 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 38401?
The 2020 Census counted 63,075 people in 38401; the ACS, which samples households over 2020-2024, estimates 67,482. Between the 2010 and 2020 censuses its population grew 15.8% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 67,482
- 2020 Census count
- 63,075+15.8% since 2010 (54,469)
- Households
- 26,524
- Median age
- 38.5
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 38401?
Of the 67,482 people the ACS estimates in 38401, 23.8% are under 18 and 17.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (73.6%), then Black (not Hispanic) (12.9%).
- Under 1823.8%
- 18 to 6459.0%
- 65 and older17.2%
- White, not Hispanic73.6%
- Black, not Hispanic12.9%
- Hispanic or Latino8.6%
- Other or two or more3.8%
- Asian, not Hispanic1.1%
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 38401 earn?
Median household income is $68,475 (ACS 2020-2024), the 3rd highest of the 6 ranked ZIP codes in Maury County. It is not measurably different from 2015-2019 ($68,397 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $68,475
- Income per person
- $35,920
- Below the poverty line
- 11.6%
- Unemployed (of the labor force)
- 2.3%
- Adults 25+ with a bachelor's degree
- 26.2%
- Adjusted gross income per tax return, 2022
- $73,23030,340 returns; wages 68% 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 38401?
FHFA's house price index for 38401, built from repeat sales and appraisals of the same homes, rose 154% from 2015 to 2025 and rose 68% from 2020 to 2025, and moved +3.6% in 2025.
- Median home value (owners' estimate)
- $339,400
- Median gross rent
- $1,187
- Homes owned by their occupants
- 70.1%
- Housing units
- 29,161
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 38401?
1,412 business establishments had a location in this ZIP code in 2023, 179 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade251
- Health care and social assistance170
- Other services (except public administration)156
- Accommodation and food services143
- Construction137
- Finance and insurance100
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 38401?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 37174 | Spring Hill | 53,900 | $105k | 9.3 mi |
| 38451 | Culleoka | 4,145 | $90k | 11.8 mi |
| 38482 | Santa Fe | 2,017 | $90k | 12.0 mi |
| 38487 | Williamsport | 746 | $105k | 13.4 mi |
| 38474 | Mount Pleasant | 9,143 | $60k | 14.1 mi |
| 37179 | Thompsons Station | 18,043 | $136k | 14.1 mi |
| 37091 | Lewisburg | 24,747 | $62k | 17.2 mi |
| 37064 | Franklin | 67,513 | $128k | 18.1 mi |
| 37034 | Chapel Hill | 8,867 | $88k | 18.4 mi |
| 38472 | Lynnville | 2,464 | $70k | 17.4 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.
Which other ZIP codes use the name Columbia?
1 more ZIP code carries the postal name Columbia, TN without a residential delivery area: PO boxes at the post office, or a single organization with its own ZIP code. The Census Bureau publishes no figures for it.
| ZIP | County |
|---|---|
| 38402 | Maury County |
Source: GeoNames postal codes (CC BY 4.0), downloaded 2026-10-09; a ZIP code with no Census ZCTA has no residential delivery area.