Residential delivery area · Michigan
ZIP Code 49781: Saint Ignace, MI
ZIP code 49781 uses the postal name Saint Ignace, Michigan and lies entirely in Mackinac County (Census 2020 ZIP-county file). About 4,200 people live there (Census Bureau, ACS 2020-2024). Median household income is $64,152 (Census Bureau, ACS 2020-2024). By Census place, 3% of its land lies in St. Ignace; 97% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2024
- ZBP2023
- IRS2022
- Town
- Saint Ignace · its only residential ZIP
- County
- Mackinac County
- Census places
- St. Ignace
- House district
- MI-1 119th Congress
- State
- Michigan
- Time zone
- Eastern
- Land area
- 81.5 sq mi · 51 people per sq mi
Where is ZIP code 49781?
49781 centers on 45.948°, -84.766° and covers 81.5 square miles of land plus 58.1 of water. It borders 3 ZIP codes: 49760, 49745, 49780.
The map draws ZIP code areas only. For the streets inside 49781, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 49781 compare with the rest of Mackinac County?
| Measure | 49781 | In Mackinac County | In MI |
|---|---|---|---|
| People (ACS 2020-2024) | 4,156 | 1st of 15 | 520th of 992 |
| Median household income | $64k | 5th of 7 | 505th of 774 |
| Median home value | $165k | 4th of 6 | 550th of 779 |
Its median household income is higher than in 37% of U.S. residential ZIP codes, and it is denser than 43% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 49781?
The 2020 Census counted 3,901 people in 49781; the ACS, which samples households over 2020-2024, estimates 4,156. Between the 2010 and 2020 censuses its population fell 3.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 4,156
- 2020 Census count
- 3,901−3.0% since 2010 (4,020)
- Households
- 1,980
- Median age
- 47.3
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 49781?
Of the 4,156 people the ACS estimates in 49781, 16.0% are under 18 and 22.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (54.0%), then Other or two or more (33.0%).
- Under 1816.0%
- 18 to 6461.1%
- 65 and older22.9%
- White, not Hispanic54.0%
- Other or two or more33.0%
- Black, not Hispanic9.6%
- Hispanic or Latino1.7%
- Asian, not Hispanic1.6%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 49781 earn?
Median household income is $64,152 (ACS 2020-2024), the 5th highest of the 7 ranked ZIP codes in Mackinac County. It is not measurably different from 2015-2019 ($53,907 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $64,152±$7,268
- Income per person
- $35,107
- Below the poverty line
- 20.2%
- Unemployed (of the labor force)
- 6.8%
- Adults 25+ with a bachelor's degree
- 19.6%
- Adjusted gross income per tax return, 2022
- $57,6922,130 returns; wages 55% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 49781?
- Median home value (owners' estimate)
- $165,400
- Median gross rent
- $685
- Homes owned by their occupants
- 67.9%
- Housing units
- 2,501
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 49781?
177 business establishments had a location in this ZIP code in 2023, 23 more than in 2018; the most are in accommodation and food services (ZIP Code Business Patterns).
- Accommodation and food services42
- Retail trade37
- Construction22
- Health care and social assistance14
- Finance and insurance11
- Other services (except public administration)10
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 49781?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 49760 | Moran | 734 | $59k | 7.9 mi |
| 49745 | Hessel | 707 | $44k | 12.5 mi |
| 49780 | Rudyard | 1,692 | $69k | 18.4 mi |
| 49757 | Mackinac Island | 561 | $95k | 9.1 mi (near) |
| 49701 | Mackinaw City | 882 | $45k | 14.3 mi (near) |
| 49718 | Carp Lake | 619 | $49k | 16.4 mi (near) |
| 49775 | Pointe Aux Pins | 34 | $133k | 18.5 mi (near) |
| 49755 | Levering | 1,799 | $66k | 21.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.