| Index | Sandwich | Illinois | National |
| Income per capita | $29,619 | $31,502 | $29,829 |
| Median household income | $70,563 | $59,196 | $55,322 |
| Median income owner occupied | $82,188 | $75,354 | $70,586 |
| Median income renter occupied | $52,774 | $34,488 | $35,192 |
| Median earnings male | $42,483 | $40,474 | $36,919 |
| Median earnings female | $24,289 | $27,197 | $26,250 |
| Unemployment rate | 1.2% | 5.3% | 4.7% |
| Poverty level | 7.7% | 14.0% | 15.1% |
| 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 | 1,978 | $112,155 | 102.7% |
| Sugar Grove, IL | 9,756 | $110,607 | 99.9% |
| Big Rock, IL | 1,271 | $106,375 | 92.3% |
| Newark, IL | 1,325 | $101,750 | 83.9% |
| Yorkville, IL | 19,386 | $101,245 | 83.0% |
| Sandwich, IL | 7,351 | $70,563 | 27.5% |
| City | Population | Household Income | National Avg. |
| Globe, AZ | 7,351 | $56,157 | 1.5% |
| Charles City, IA | 7,351 | $37,301 | 32.6% |
| Iron Mountain, MI | 7,352 | $48,086 | 13.1% |
| Hudsonville, MI | 7,353 | $75,730 | 36.9% |
| Tuttle, OK | 7,348 | $89,375 | 61.6% |
| Sandwich, IL | 7,351 | $70,563 | 27.5% |
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