| Index | Plainville | Illinois | National |
| Income per capita | $33,720 | $47,397 | $44,883 |
| Median household income | $74,523 | $88,967 | $81,333 |
| Median income owner occupied | $82,310 | $111,557 | $106,172 |
| Median income renter occupied | $0 | $52,117 | $52,080 |
| Median earnings male | $46,668 | $60,185 | $54,343 |
| Median earnings female | $29,353 | $40,368 | $38,439 |
| Unemployment rate | 12.0% | 6.6% | 4.9% |
| Poverty level | 17.2% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 0.0% | 0.0% |
| Manufacturing sector | 50.0% | 50.0% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 21.7% | 21.7% |
| Public administration | 3.3% | 3.3% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 3.3% | 3.3% |
| Other | 21.7% | 21.7% |
| City | Population | Household Income | National Avg. |
| El Dara, IL | 92 | $172,549 | 112.2% |
| Kinderhook, IL | 316 | $97,505 | 19.9% |
| Columbus, IL | 83 | $96,438 | 18.6% |
| Liberty, IL | 407 | $95,883 | 17.9% |
| Payson, IL | 1,427 | $93,443 | 14.9% |
| Plainville, IL | 292 | $74,523 | 8.4% |
| City | Population | Household Income | National Avg. |
| Kalihiwai, HI | 292 | $100,489 | 23.6% |
| Deep River, IA | 292 | $76,477 | 6.0% |
| Kensett, IA | 292 | $49,496 | 39.1% |
| Buncombe, IL | 292 | $67,349 | 17.2% |
| Royal Lakes, IL | 292 | $28,988 | 64.4% |
| Plainville, IL | 292 | $74,523 | 8.4% |