🇺🇸 United States ZIP Code

STANDARD

38401

Columbia

ZIP Code 38401 is a standard zip code serving Columbia, Columbia, Tennessee (TN), in Maury County, United States. It has an estimated population of 54,469 with a median household income of $41,665. The area falls within the America/Chicago timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Tennessee (TN)
County: Maury
City: Columbia
Timezone: America/Chicago

Coordinates

Latitude: 35.615600
Longitude: -87.038000

Geographic Details

Land Area: 300.73 mi²
Water Area: 2.17 mi²
Population Density: 181.0 people per mi² (60th percentile)
Bounding Box: 35.842853°N, 35.475758°S, -86.766210°E, -87.228230°W

With 54,469 residents spread across 300.73 square miles, this area has a population density of 181.0 people per square mile.

Demographics

54,469

Population

95th percentile

$41,665

Median Income

30th percentile

$132,000

Median Home Value

50th percentile

300.73 mi²

Land Area

The median household income in 38401 is $41,665, and the median home value is $132,000.

Housing

23,943

Total Units

21,443

Occupied Units

89.6%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Columbia, TN.

38402

Columbia

Similar ZIP Codes in Tennessee

ZIP codes with similar median household income in Tennessee.

38463

Iron City

$41,071

37818

Mosheim

$36,203

37876

Sevierville

$46,399

37411

Chattanooga

$36,842

38225

Dresden

$37,099

38334

Finger

$42,500

37701

Alcoa

$40,587

38456

Ethridge

$37,530

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.