| Index | Castalia | Ohio | National |
| Income per capita | $22,143 | $27,800 | $29,829 |
| Median household income | $60,625 | $50,674 | $55,322 |
| Median income owner occupied | $78,438 | $65,077 | $70,586 |
| Median income renter occupied | $38,750 | $28,832 | $35,192 |
| Median earnings male | $36,094 | $36,579 | $36,919 |
| Median earnings female | $21,250 | $24,862 | $26,250 |
| Unemployment rate | 3.9% | 4.6% | 4.7% |
| Poverty level | 24.2% | 15.4% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 7.9% | 7.9% |
| Manufacturing sector | 32.1% | 32.1% |
| Financial & insurance services | 0.7% | 0.7% |
| Wholesale & retail services | 9.3% | 9.3% |
| Public administration | 2.3% | 2.3% |
| Transportation, warehousing & utilities | 7.9% | 7.9% |
| Education, health & social services | 3.3% | 3.3% |
| Other | 36.4% | 36.4% |
| City | Population | Household Income | National Avg. |
| Marblehead, OH | 858 | $80,417 | 45.4% |
| Milan, OH | 1,540 | $77,969 | 40.9% |
| Kelleys Island, OH | 283 | $69,500 | 25.6% |
| Bay View, OH | 832 | $67,500 | 22.0% |
| Green Springs, OH | 1,426 | $65,000 | 17.5% |
| Castalia, OH | 1,142 | $60,625 | 9.6% |
| City | Population | Household Income | National Avg. |
| Foreman, AR | 1,142 | $24,507 | 55.7% |
| Ridgway, CO | 1,142 | $72,628 | 31.3% |
| Discovery Harbour, HI | 1,142 | $69,609 | 25.8% |
| Eddyville, IA | 1,142 | $50,061 | 9.5% |
| Akron, IN | 1,142 | $58,542 | 5.8% |
| Castalia, OH | 1,142 | $60,625 | 9.6% |
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