| Index | Mason City | Iowa | National |
| Income per capita | $46,381 | $42,672 | $44,883 |
| Median household income | $81,099 | $81,387 | $81,333 |
| Median income owner occupied | $96,169 | $98,724 | $106,172 |
| Median income renter occupied | $54,053 | $45,890 | $52,080 |
| Median earnings male | $59,600 | $54,047 | $54,343 |
| Median earnings female | $39,438 | $36,462 | $38,439 |
| Unemployment rate | 2.6% | 3.2% | 4.9% |
| Poverty level | 10.8% | 12.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 10.0% | 10.0% |
| Manufacturing sector | 24.7% | 24.7% |
| Financial & insurance services | 3.1% | 3.1% |
| Wholesale & retail services | 17.5% | 17.5% |
| Public administration | 3.2% | 3.2% |
| Transportation, warehousing & utilities | 11.6% | 11.6% |
| Education, health & social services | 7.9% | 7.9% |
| Other | 19.9% | 19.9% |
| City | Population | Household Income | National Avg. |
| Ventura, IA | 783 | $109,441 | 34.6% |
| Manly, IA | 1,533 | $97,968 | 20.5% |
| Nora Springs, IA | 1,692 | $96,346 | 18.5% |
| Plymouth, IA | 483 | $93,145 | 14.5% |
| Hanlontown, IA | 199 | $91,837 | 12.9% |
| Mason City, IA | 27,815 | $81,099 | 0.3% |
| City | Population | Household Income | National Avg. |
| Boisbriand, QC | 27,813 | n/a | |
| Allen Park, MI | 27,807 | $104,229 | 28.2% |
| Thomasville, NC | 27,805 | $62,983 | 22.6% |
| Maywood, CA | 27,798 | $76,695 | 5.7% |
| Wilmette, IL | 27,840 | $238,348 | 193.1% |
| Mason City, IA | 27,815 | $81,099 | 0.3% |