🇺🇸 United States ZIP Code

STANDARD

37115

Madison

ZIP Code 37115 is a standard zip code serving Madison, Madison, Tennessee (TN), in Davidson County, United States. It has an estimated population of 37,316 with a median household income of $37,200. The area falls within the America/Chicago timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 36.260400
Longitude: -86.704600

Geographic Details

Land Area: 21.29 mi²
Water Area: 0.63 mi²
Population Density: 1753.0 people per mi² (80th percentile)
Bounding Box: 36.318200°N, 36.192761°S, -86.638920°E, -86.757934°W

With 37,316 residents spread across 21.29 square miles, this area has a population density of 1753.0 people per square mile.

Demographics

37,316

Population

90th percentile

$37,200

Median Income

20th percentile

$122,000

Median Home Value

45th percentile

21.29 mi²

Land Area

The median household income in 37115 is $37,200, and the median home value is $122,000. This is below the national average for household income.

Housing

17,619

Total Units

15,829

Occupied Units

89.8%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Madison, TN.

37116

Madison

Similar ZIP Codes in Tennessee

ZIP codes with similar median household income in Tennessee.

37843

Parrottsville

$40,305

38369

Rutherford

$34,183

37769

Lake City

$31,775

38116

Memphis

$37,714

37380

South Pittsburg

$37,225

37335

Flintville

$32,146

37820

New Market

$42,321

37863

Pigeon Forge

$34,280

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.