| Index | St. Johns | Michigan | National |
| Income per capita | $43,141 | $40,534 | $44,883 |
| Median household income | $95,956 | $74,200 | $81,333 |
| Median income owner occupied | $113,557 | $92,757 | $106,172 |
| Median income renter occupied | $55,684 | $42,775 | $52,080 |
| Median earnings male | $67,176 | $52,653 | $54,343 |
| Median earnings female | $37,837 | $34,413 | $38,439 |
| Unemployment rate | 1.5% | 5.5% | 4.9% |
| Poverty level | 10.3% | 16.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 5.6% | 5.6% |
| Manufacturing sector | 14.7% | 14.7% |
| Financial & insurance services | 2.6% | 2.6% |
| Wholesale & retail services | 24.6% | 24.6% |
| Public administration | 9.4% | 9.4% |
| Transportation, warehousing & utilities | 2.9% | 2.9% |
| Education, health & social services | 10.5% | 10.5% |
| Other | 27.8% | 27.8% |
| City | Population | Household Income | National Avg. |
| Lake Victoria, MI | 843 | $170,791 | 110.0% |
| DeWitt, MI | 4,858 | $136,764 | 68.2% |
| Wacousta, MI | 1,748 | $127,756 | 57.1% |
| Fowler, MI | 1,609 | $90,547 | 11.3% |
| Laingsburg, MI | 1,634 | $89,877 | 10.5% |
| St. Johns, MI | 8,087 | $95,956 | 18.0% |
| City | Population | Household Income | National Avg. |
| Flowery Branch, GA | 8,088 | $128,600 | 58.1% |
| Hitchcock, TX | 8,085 | $85,033 | 4.5% |
| Kenai, AK | 8,089 | $101,062 | 24.3% |
| Wytheville, VA | 8,084 | $59,951 | 26.3% |
| Ashland, WI | 8,090 | $59,272 | 27.1% |
| St. Johns, MI | 8,087 | $95,956 | 18.0% |