| Index | Sandwich | Illinois | National |
| Income per capita | $43,446 | $47,397 | $44,883 |
| Median household income | $105,927 | $88,967 | $81,333 |
| Median income owner occupied | $121,311 | $111,557 | $106,172 |
| Median income renter occupied | $78,737 | $52,117 | $52,080 |
| Median earnings male | $61,649 | $60,185 | $54,343 |
| Median earnings female | $35,504 | $40,368 | $38,439 |
| Unemployment rate | 1.3% | 6.6% | 4.9% |
| Poverty level | 7.7% | 14.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 14.3% | 14.3% |
| Manufacturing sector | 13.5% | 13.5% |
| Financial & insurance services | 1.8% | 1.8% |
| Wholesale & retail services | 19.8% | 19.8% |
| Public administration | 4.6% | 4.6% |
| Transportation, warehousing & utilities | 12.8% | 12.8% |
| Education, health & social services | 10.0% | 10.0% |
| Other | 20.5% | 20.5% |
| City | Population | Household Income | National Avg. |
| Prestbury, IL | 2,025 | $167,845 | 106.4% |
| Sugar Grove, IL | 9,959 | $164,873 | 102.7% |
| Big Rock, IL | 1,298 | $159,808 | 96.5% |
| Yorkville, IL | 19,794 | $152,534 | 87.5% |
| Newark, IL | 1,376 | $150,603 | 85.2% |
| Sandwich, IL | 7,547 | $105,927 | 30.2% |
| City | Population | Household Income | National Avg. |
| Lake Mathews, CA | 7,544 | $152,087 | 87.0% |
| Gorham, ME | 7,536 | $122,248 | 50.3% |
| LaFayette, GA | 7,558 | $46,218 | 43.2% |
| North Amherst, MA | 7,534 | $55,282 | 32.0% |
| Chibougamau, QC | 7,561 | n/a | |
| Sandwich, IL | 7,547 | $105,927 | 30.2% |