🇺🇸 United States ZIP Code

STANDARD

48220

Ferndale

ZIP Code 48220 is a standard zip code serving Ferndale, Ferndale, Michigan (MI), in Oakland County, United States. It has an estimated population of 22,319 with a median household income of $44,986. The area falls within the America/Detroit timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Michigan (MI)
County: Oakland
City: Ferndale
Timezone: America/Detroit

Coordinates

Latitude: 42.458600
Longitude: -83.136300

Geographic Details

Land Area: 4.43 mi²
Population Density: 5036.0 people per mi² (90th percentile)
Bounding Box: 42.475930°N, 42.445545°S, -83.109626°E, -83.171930°W

With 22,319 residents spread across 4.43 square miles, this area has a population density of 5036.0 people per square mile.

Demographics

22,319

Population

80th percentile

$44,986

Median Income

40th percentile

$92,200

Median Home Value

30th percentile

4.43 mi²

Land Area

The median household income in 48220 is $44,986, and the median home value is $92,200.

Housing

11,588

Total Units

10,583

Occupied Units

91.3%

Occupancy Rate

Similar ZIP Codes in Michigan

ZIP codes with similar median household income in Michigan.

48419

Carsonville

$40,402

49436

Mears

$39,038

49655

Leroy

$41,853

48911

Lansing

$38,930

49126

Sodus

$43,958

49029

Burlington

$51,290

48834

Fenwick

$42,466

49028

Bronson

$39,059

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.