| Index | Hartwick | Iowa | National |
| Income per capita | $32,192 | $42,672 | $44,883 |
| Median household income | $99,704 | $81,387 | $81,333 |
| Median income owner occupied | $103,808 | $98,724 | $106,172 |
| Median income renter occupied | $0 | $45,890 | $52,080 |
| Median earnings male | $70,422 | $54,047 | $54,343 |
| Median earnings female | $36,315 | $36,462 | $38,439 |
| Unemployment rate | 0.0% | 3.2% | 4.9% |
| Poverty level | 0.0% | 12.3% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 13.3% | 13.3% |
| Manufacturing sector | 43.3% | 43.3% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 30.0% | 30.0% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 10.0% | 10.0% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 3.3% | 3.3% |
| City | Population | Household Income | National Avg. |
| Luzerne, IA | 128 | $111,270 | 36.8% |
| Holiday Lake, IA | 339 | $102,526 | 26.1% |
| Millersburg, IA | 187 | $95,573 | 17.5% |
| Vining, IA | 85 | $93,308 | 14.7% |
| Blairstown, IA | 782 | $92,825 | 14.1% |
| Hartwick, IA | 136 | $99,704 | 22.6% |
| City | Population | Household Income | National Avg. |
| Pitkas Point, AK | 136 | $76,346 | 6.1% |
| Lester, AL | 136 | $64,549 | 20.6% |
| McKittrick, CA | 136 | $58,026 | 28.7% |
| Vallecito, CA | 136 | $66,018 | 18.8% |
| Volta, CA | 136 | $61,660 | 24.2% |
| Hartwick, IA | 136 | $99,704 | 22.6% |