🇺🇸 United States ZIP Code

STANDARD

48103

Ann Arbor

ZIP Code 48103 is a standard zip code serving Ann Arbor, Ann Arbor, Michigan (MI), in Washtenaw County, United States. It has an estimated population of 53,057 with a median household income of $75,559. The area falls within the America/Detroit timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Michigan (MI)
County: Washtenaw
City: Ann Arbor
Timezone: America/Detroit

Coordinates

Latitude: 42.279400
Longitude: -83.784000

Geographic Details

Land Area: 65.08 mi²
Water Area: 0.46 mi²
Population Density: 815.0 people per mi² (75th percentile)
Bounding Box: 42.349523°N, 42.184368°S, -83.739130°E, -83.959469°W

With 53,057 residents spread across 65.08 square miles, this area has a population density of 815.0 people per square mile.

Demographics

53,057

Population

95th percentile

$75,559

Median Income

85th percentile

$251,600

Median Home Value

80th percentile

65.08 mi²

Land Area

The median household income in 48103 is $75,559, and the median home value is $251,600. This places the area in the top 25% nationally for household income.

Housing

24,430

Total Units

23,208

Occupied Units

95.0%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Ann Arbor, MI.

48104

Ann Arbor

48105

Ann Arbor

48106

Ann Arbor

48107

Ann Arbor

48108

Ann Arbor

48109

Ann Arbor

48113

Ann Arbor

Similar ZIP Codes in Michigan

ZIP codes with similar median household income in Michigan.

48438

Goodrich

$76,509

48114

Brighton

$83,661

48173

Rockwood

$67,841

48170

Plymouth

$80,120

48158

Manchester

$71,332

48118

Chelsea

$68,134

48005

Armada

$75,388

49071

Mattawan

$68,644

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.