🇺🇸 United States ZIP Code

STANDARD

48174

Romulus

ZIP Code 48174 is a standard zip code serving Romulus, Romulus, Michigan (MI), in Wayne County, United States. It has an estimated population of 31,515 with a median household income of $44,550. The area falls within the America/Detroit timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 42.222300
Longitude: -83.396600

Geographic Details

Land Area: 41.19 mi²
Water Area: 0.23 mi²
Population Density: 765.0 people per mi² (75th percentile)
Bounding Box: 42.268230°N, 42.137714°S, -83.257205°E, -83.438400°W

With 31,515 residents spread across 41.19 square miles, this area has a population density of 765.0 people per square mile.

Demographics

31,515

Population

90th percentile

$44,550

Median Income

40th percentile

$77,600

Median Home Value

15th percentile

41.19 mi²

Land Area

The median household income in 48174 is $44,550, and the median home value is $77,600.

Housing

13,063

Total Units

11,842

Occupied Units

90.7%

Occupancy Rate

Similar ZIP Codes in Michigan

ZIP codes with similar median household income in Michigan.

48093

Warren

$48,831

48435

Fostoria

$47,500

48637

Merrill

$48,646

49221

Adrian

$40,642

48468

Port Hope

$38,882

49452

Rothbury

$40,968

48817

Corunna

$44,729

49082

Quincy

$42,535

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.