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🇺🇸 United States ZIP Code

STANDARD

36603

Mobile

ZIP Code 36603 is a standard zip code serving Mobile, Mobile, Alabama (AL), in Mobile County, United States. It has an estimated population of 7,922 with a median household income of $22,298. The area falls within the America/Chicago timezone.

Median Household Income vs. National Average

$0 National: $37,585 $150K+ $22,298

Location

Country
🇺🇸 United States
State / Province
Alabama (AL)
County
Mobile
City
Mobile
Timezone
America/Chicago

Coordinates

Latitude
30.692100
Longitude
-88.056200

Geographic Details

Land Area
6.43 mi²
Water Area
1.50 mi²
Population Density
1233.0 people per mi² (80th percentile)
Bounding Box
30.733232°N, 30.654582°S, -88.008868°E, -88.077733°W

With 7,922 residents spread across 6.43 square miles, this area has a population density of 1233.0 people per square mile.

Demographics

7,922

Population

65th percentile

$22,298

Median Income

$77,500

Median Home Value

15th percentile

6.43 mi²

Land Area

The median household income in 36603 is $22,298, and the median home value is $77,500.

Housing

3,628

Total Units

2,754

Occupied Units

75.9%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Mobile, AL.

36601

Mobile

 36602

Mobile

 36604

Mobile

 36605

Mobile

 36606

Mobile

 36607

Mobile

 36608

Mobile

 36609

Mobile

 36610

Mobile

 36611

Mobile

Similar ZIP Codes in Alabama

ZIP codes with similar median household income in Alabama.

35020

Bessemer

$24,570

 35034

Brent

$23,085

 35089

Kellyton

$26,155

 35203

Birmingham

$18,894

 35204

Birmingham

$20,894

 35207

Birmingham

$23,167

 35211

Birmingham

$25,729

 35217

Birmingham

$27,013

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.