🇺🇸 United States ZIP Code

STANDARD

49270

Petersburg

ZIP Code 49270 is a standard zip code serving Petersburg, Petersburg, Michigan (MI), in Monroe County, United States. It has an estimated population of 5,874 with a median household income of $59,489. The area falls within the America/Detroit timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 41.875700
Longitude: -83.687700

Geographic Details

Land Area: 44.81 mi²
Water Area: 0.41 mi²
Population Density: 131.0 people per mi² (55th percentile)
Bounding Box: 41.932453°N, 41.806196°S, -83.592309°E, -83.768779°W

With 5,874 residents spread across 44.81 square miles, this area has a population density of 131.0 people per square mile.

Demographics

5,874

Population

60th percentile

$59,489

Median Income

70th percentile

$159,100

Median Home Value

60th percentile

44.81 mi²

Land Area

The median household income in 49270 is $59,489, and the median home value is $159,100.

Housing

2,266

Total Units

2,163

Occupied Units

95.5%

Occupancy Rate

Similar ZIP Codes in Michigan

ZIP codes with similar median household income in Michigan.

48854

Mason

$63,552

48917

Lansing

$51,830

48757

Reese

$52,386

49457

Twin Lake

$51,649

49740

Harbor Springs

$63,517

49283

Spring Arbor

$59,136

48334

Farmington

$64,512

48073

Royal Oak

$58,755

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.