38401 ZIP Code, Columbia, TN

38401 is a ZIP code in Columbia, Tennessee in Maury County. It covers 297 square miles of land. The closest ZIP codes are 37174, 38451 and 38482. 67,482 people live here in 26,524 households, which puts it among the most populous 1% of Tennessee ZIP codes. With about 227 people per square mile it is lightly settled, and most homes are owner-occupied (70%). Median household income is $68,475, close to the Tennessee median of $69,595.

Quick facts

Key figures

MeasureValue
Residents67,482
Households26,524
Median household income$68,475
Income per person$35,920
Median age38.5
Homeowners70.1%
Median home value$339,400
Median rent$1,187
Bachelor's degree or higher26.2%
Average commute (minutes)28.6
Households with kids under 1831.2%
Moved in the past year9.9%
Below the poverty line11.6%
Broadband internet90.3%
Speak a non-English language at home6.7%

Household income

% of householdsValue
<$10K6.2%
$10–15K2.6%
$15–25K7.6%
$25–35K7.1%
$35–50K12.0%
$50–75K18.0%
$75–100K13.9%
$100–150K17.1%
$150–200K7.8%
$200K+7.7%

Age

% of all residentsValue
<1012.0%
10–1914.0%
20–245.5%
25–3414.3%
35–4413.9%
45–5411.2%
55–6412.0%
65–7410.6%
75+6.5%

Tenure

% of housing unitsValue
Owned, with mortgage40.3%
Owned outright23.6%
Rented27.1%
Vacant9.0%

Type of building

% of housing unitsValue
Detached house73.3%
Townhome2.8%
2–4 units7.5%
5–19 units8.0%
20+ units1.1%
Mobile / other7.3%

Businesses in 38401

1,412 business establishments with 19,823 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

38401 has 46 USPS carrier routes with 30,784 residential and 1,925 business mailboxes. Open the EDDM route map.

Carrier routes in 38401

38401 has 46 USPS carrier routes (16 city (C), 30 rural (R)) with 30,784 residential and 1,925 business mailboxes. Routes range from 239 homes (R029) to 1,129 homes (R025); the median route has 634 homes. The Census counted 26,524 households in 38401 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2491
250–4996
500–74925
750–99911
1,000–1,4993
1,500+0

Best routes in 38401 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route C017 — USPS business mailboxes 226, 594 homes
  2. Route C021 — USPS business mailboxes 221, 433 homes
  3. Route C007 — USPS business mailboxes 172, 740 homes
  4. Route C006 — USPS business mailboxes 148, 874 homes
  5. Route C010 — USPS business mailboxes 132, 930 homes

Select these 5 routes on the route map

Every carrier route in 38401

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C002City645124$63,309———
C004City67217$73,215———
C006City874148$73,215———
C007City740172$26,032———
C008City1,07697$94,724———
C010City930132$58,764———
C011City93724$57,122———
C012City50471$73,215———
C013City79688$52,151———
C015City5870$82,522———
C016City7410$57,491———
C017City594226$73,215———
C019City66815$110,286———
C020City84921$110,286———
C021City433221$30,383———
C022City27433$30,383———
R001Rural6187$63,300———
R002Rural51310$84,232———
R003Rural85024$80,845———
R004Rural4877$54,725———
R005Rural5104$84,232———
R006Rural54412$69,926———
R007Rural50642$52,685———
R008Rural4405$66,448———
R009Rural5623$57,641———
R010Rural4530$52,685———
R011Rural65514$58,764———
R012Rural63039$69,940———
R013Rural67635$56,368———
R014Rural55245$58,764———
R015Rural4886$113,643———
R016Rural62414$86,439———
R017Rural62614$52,685———
R018Rural76236$94,229———
R019Rural58219$69,940———
R020Rural1,05113$57,641———
R021Rural94340$54,725———
R022Rural6387$94,724———
R023Rural6393$80,845———
R024Rural96147$68,681———
R025Rural1,1294$110,423———
R026Rural81826$56,368———
R027Rural58816$52,685———
R028Rural8195$110,423———
R029Rural23912$113,643———
R030Rural56127$54,725———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 38401 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

Areas that include 38401

Where it ranks

Mail every home in 38401

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 38401, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 38401 in?
38401 is a Columbia, TN mailing address. By land area, 11% lies inside Columbia and 1% lies inside Mount Pleasant; the rest is outside any Census-defined city or community.
What county is 38401 in?
38401 is in Maury County.
What is the population of 38401?
About 67,482 people (±1,274), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 63,075.
What is the median household income in 38401?
$68,475 (±$4,404), compared with $69,595 for Tennessee as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 38401?
46 USPS carrier routes with 30,784 residential and 1,925 business mailboxes (32,711 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 38401?
The closest, measured center to center: 37174 (9.3 mi, Spring Hill), 38451 (11.8 mi, Lewisburg), 38482 (12 mi), 38487 (13.4 mi), 37179 (14.1 mi, Thompson's Station) and 38474 (14.1 mi, Mount Pleasant).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.