🇺🇸 United States ZIP Code

STANDARD

49781

Saint Ignace

ZIP Code 49781 is a standard zip code serving Saint Ignace, Saint Ignace, Michigan (MI), in Mackinac County, United States. It has an estimated population of 4,020 with a median household income of $39,838. The area falls within the America/Detroit timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Michigan (MI)
County: Mackinac
City: Saint Ignace
Timezone: America/Detroit

Coordinates

Latitude: 45.998500
Longitude: -84.697800

Geographic Details

Land Area: 78.67 mi²
Water Area: 22.11 mi²
Population Density: 51.0 people per mi² (40th percentile)
Bounding Box: 46.073752°N, 45.827438°S, -84.683884°E, -85.050245°W

With 4,020 residents spread across 78.67 square miles, this area has a population density of 51.0 people per square mile.

Demographics

4,020

Population

50th percentile

$39,838

Median Income

25th percentile

$118,900

Median Home Value

45th percentile

78.67 mi²

Land Area

The median household income in 49781 is $39,838, and the median home value is $118,900. This is below the national average for household income.

Housing

2,270

Total Units

1,717

Occupied Units

75.6%

Occupancy Rate

Similar ZIP Codes in Michigan

ZIP codes with similar median household income in Michigan.

48632

Lake

$34,713

48884

Sheridan

$40,617

49245

Homer

$40,027

49064

Lawrence

$43,947

48021

Eastpointe

$43,274

49676

Rapid City

$39,425

49874

Powers

$35,729

48726

Cass City

$43,480

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.