| Index | Northwood | Iowa | National |
| Income per capita | $44,626 | $42,672 | $44,883 |
| Median household income | $87,182 | $81,387 | $81,333 |
| Median income owner occupied | $108,690 | $98,724 | $106,172 |
| Median income renter occupied | $49,713 | $45,890 | $52,080 |
| Median earnings male | $61,709 | $54,047 | $54,343 |
| Median earnings female | $37,921 | $36,462 | $38,439 |
| Unemployment rate | 3.2% | 3.2% | 4.9% |
| Poverty level | 4.3% | 12.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 15.4% | 15.4% |
| Manufacturing sector | 29.4% | 29.4% |
| Financial & insurance services | 6.1% | 6.1% |
| Wholesale & retail services | 17.5% | 17.5% |
| Public administration | 1.2% | 1.2% |
| Transportation, warehousing & utilities | 3.1% | 3.1% |
| Education, health & social services | 9.8% | 9.8% |
| Other | 15.0% | 15.0% |
| City | Population | Household Income | National Avg. |
| Manly, IA | 1,533 | $97,968 | 20.5% |
| Plymouth, IA | 483 | $93,145 | 14.5% |
| Hanlontown, IA | 199 | $91,837 | 12.9% |
| Grafton, IA | 187 | $79,946 | 1.7% |
| Fertile, IA | 304 | $76,083 | 6.5% |
| Northwood, IA | 2,232 | $87,182 | 7.2% |
| City | Population | Household Income | National Avg. |
| Cudjoe Key, FL | 2,231 | $116,710 | 43.5% |
| Madison, NC | 2,231 | $65,952 | 18.9% |
| Mineralwells, WV | 2,231 | $128,187 | 57.6% |
| Saint-Damien, QC | 2,231 | n/a | |
| Mount Zion, GA | 2,233 | $69,937 | 14.0% |
| Northwood, IA | 2,232 | $87,182 | 7.2% |