| Index | St. Ignace | Michigan | National |
| Income per capita | $41,067 | $40,534 | $44,883 |
| Median household income | $70,890 | $74,200 | $81,333 |
| Median income owner occupied | $85,993 | $92,757 | $106,172 |
| Median income renter occupied | $44,150 | $42,775 | $52,080 |
| Median earnings male | $36,095 | $52,653 | $54,343 |
| Median earnings female | $38,999 | $34,413 | $38,439 |
| Unemployment rate | 3.7% | 5.5% | 4.9% |
| Poverty level | 15.3% | 16.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 16.3% | 16.3% |
| Manufacturing sector | 3.1% | 3.1% |
| Financial & insurance services | 2.3% | 2.3% |
| Wholesale & retail services | 12.8% | 12.8% |
| Public administration | 12.2% | 12.2% |
| Transportation, warehousing & utilities | 10.1% | 10.1% |
| Education, health & social services | 12.6% | 12.6% |
| Other | 30.6% | 30.6% |
| City | Population | Household Income | National Avg. |
| Mackinac Island, MI | 1,032 | $64,368 | 20.9% |
| Mackinaw City, MI | 726 | $53,807 | 33.8% |
| Carp Lake, MI | 546 | $50,232 | 38.2% |
| St. Ignace, MI | 2,209 | $70,890 | 12.8% |
| City | Population | Household Income | National Avg. |
| Bangor, MI | 2,209 | $68,014 | 16.4% |
| St. Paris, OH | 2,209 | $73,262 | 9.9% |
| Maple Lake, MN | 2,208 | $100,791 | 23.9% |
| Piketon, OH | 2,208 | $56,976 | 29.9% |
| Little River-Academy, TX | 2,208 | $92,497 | 13.7% |
| St. Ignace, MI | 2,209 | $70,890 | 12.8% |