🇺🇸 United States ZIP Code

STANDARD

48875

Portland

ZIP Code 48875 is a standard zip code serving Portland, Portland, Michigan (MI), in Ionia County, United States. It has an estimated population of 10,186 with a median household income of $61,212. The area falls within the America/Detroit timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 42.862400
Longitude: -84.913900

Geographic Details

Land Area: 86.20 mi²
Water Area: 1.41 mi²
Population Density: 118.0 people per mi² (55th percentile)
Bounding Box: 42.915133°N, 42.793698°S, -84.778804°E, -85.094725°W

With 10,186 residents spread across 86.20 square miles, this area has a population density of 118.0 people per square mile.

Demographics

10,186

Population

70th percentile

$61,212

Median Income

75th percentile

$138,600

Median Home Value

55th percentile

86.20 mi²

Land Area

The median household income in 48875 is $61,212, and the median home value is $138,600. This places the area in the top 25% nationally for household income.

Housing

4,165

Total Units

3,860

Occupied Units

92.7%

Occupancy Rate

Similar ZIP Codes in Michigan

ZIP codes with similar median household income in Michigan.

48336

Farmington

$54,921

48134

Flat Rock

$57,660

49011

Athens

$52,610

49770

Petoskey

$52,267

48189

Whitmore Lake

$56,759

49345

Sparta

$56,000

49053

Galesburg

$55,615

49009

Kalamazoo

$53,172

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.