| Index | Millersburg | Iowa | National |
| Income per capita | $53,231 | $42,672 | $44,883 |
| Median household income | $95,573 | $81,387 | $81,333 |
| Median income owner occupied | $120,737 | $98,724 | $106,172 |
| Median income renter occupied | $0 | $45,890 | $52,080 |
| Median earnings male | $65,249 | $54,047 | $54,343 |
| Median earnings female | $50,057 | $36,462 | $38,439 |
| Unemployment rate | 11.0% | 3.2% | 4.9% |
| Poverty level | 7.7% | 12.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 42.6% | 42.6% |
| Manufacturing sector | 12.8% | 12.8% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 0.0% | 0.0% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 2.1% | 2.1% |
| Education, health & social services | 2.1% | 2.1% |
| Other | 40.4% | 40.4% |
| City | Population | Household Income | National Avg. |
| Williamsburg, IA | 3,248 | $102,819 | 26.4% |
| Hartwick, IA | 136 | $99,704 | 22.6% |
| Conroy, IA | 225 | $86,148 | 5.9% |
| Ladora, IA | 231 | $84,374 | 3.7% |
| Victor, IA | 1,010 | $84,015 | 3.3% |
| Millersburg, IA | 187 | $95,573 | 17.5% |
| City | Population | Household Income | National Avg. |
| Olancha, CA | 187 | $90,001 | 10.7% |
| Fort Green, FL | 187 | $122,990 | 51.2% |
| Alston, GA | 187 | $40,150 | 50.6% |
| Bristow, IA | 187 | $0 | 100.0% |
| Grafton, IA | 187 | $79,946 | 1.7% |
| Millersburg, IA | 187 | $95,573 | 17.5% |