| Index | Grundy Center | Iowa | National |
| Income per capita | $47,514 | $42,672 | $44,883 |
| Median household income | $104,170 | $81,387 | $81,333 |
| Median income owner occupied | $109,023 | $98,724 | $106,172 |
| Median income renter occupied | $66,229 | $45,890 | $52,080 |
| Median earnings male | $74,118 | $54,047 | $54,343 |
| Median earnings female | $48,060 | $36,462 | $38,439 |
| Unemployment rate | 2.3% | 3.2% | 4.9% |
| Poverty level | 7.0% | 12.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 14.7% | 14.7% |
| Manufacturing sector | 21.8% | 21.8% |
| Financial & insurance services | 2.3% | 2.3% |
| Wholesale & retail services | 15.5% | 15.5% |
| Public administration | 2.8% | 2.8% |
| Transportation, warehousing & utilities | 7.1% | 7.1% |
| Education, health & social services | 15.3% | 15.3% |
| Other | 20.6% | 20.6% |
| City | Population | Household Income | National Avg. |
| Dike, IA | 1,239 | $117,742 | 44.8% |
| Stout, IA | 218 | $105,682 | 29.9% |
| Reinbeck, IA | 1,737 | $103,984 | 27.8% |
| Liscomb, IA | 397 | $102,620 | 26.2% |
| Beaman, IA | 158 | $96,038 | 18.1% |
| Grundy Center, IA | 2,775 | $104,170 | 28.1% |
| City | Population | Household Income | National Avg. |
| Rogers City, MI | 2,775 | $60,308 | 25.9% |
| Emerson-Franklin, MB | 2,775 | n/a | |
| Bicknell, IN | 2,776 | $62,104 | 23.6% |
| Fayette, MO | 2,776 | $66,745 | 17.9% |
| Evendale, OH | 2,776 | $246,082 | 202.6% |
| Grundy Center, IA | 2,775 | $104,170 | 28.1% |