| Index | Middlefield | Ohio | National |
| Income per capita | $43,802 | $41,785 | $44,883 |
| Median household income | $80,720 | $75,222 | $81,333 |
| Median income owner occupied | $83,422 | $98,843 | $106,172 |
| Median income renter occupied | $44,020 | $43,469 | $52,080 |
| Median earnings male | $57,666 | $53,201 | $54,343 |
| Median earnings female | $36,913 | $36,192 | $38,439 |
| Unemployment rate | 1.4% | 4.8% | 4.9% |
| Poverty level | 8.5% | 15.4% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 8.6% | 8.6% |
| Manufacturing sector | 32.8% | 32.8% |
| Financial & insurance services | 7.7% | 7.7% |
| Wholesale & retail services | 11.2% | 11.2% |
| Public administration | 2.0% | 2.0% |
| Transportation, warehousing & utilities | 3.7% | 3.7% |
| Education, health & social services | 10.3% | 10.3% |
| Other | 23.8% | 23.8% |
| City | Population | Household Income | National Avg. |
| South Russell, OH | 3,869 | $203,083 | 149.7% |
| Aurora, OH | 16,638 | $165,779 | 103.8% |
| Bainbridge, OH | 8,143 | $163,389 | 100.9% |
| Kirtland Hills, OH | 689 | $163,147 | 100.6% |
| Kirtland, OH | 6,965 | $134,956 | 65.9% |
| Middlefield, OH | 2,770 | $80,720 | 0.8% |
| City | Population | Household Income | National Avg. |
| Arlington, NY | 2,770 | $97,902 | 20.4% |
| Bowmansville, PA | 2,770 | $127,177 | 56.4% |
| Winnie, TX | 2,770 | $82,212 | 1.1% |
| Souris-Glenwood, MB | 2,770 | n/a | |
| Mountain View, MO | 2,769 | $63,248 | 22.2% |
| Middlefield, OH | 2,770 | $80,720 | 0.8% |