| Index | Mullen | Nebraska | National |
| Income per capita | $40,191 | $42,745 | $44,883 |
| Median household income | $60,633 | $81,154 | $81,333 |
| Median income owner occupied | $90,468 | $102,351 | $106,172 |
| Median income renter occupied | $53,315 | $47,625 | $52,080 |
| Median earnings male | $54,703 | $53,280 | $54,343 |
| Median earnings female | $49,259 | $37,214 | $38,439 |
| Unemployment rate | 0.0% | 3.1% | 4.9% |
| Poverty level | 7.5% | 12.4% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 17.8% | 17.8% |
| Manufacturing sector | 0.0% | 0.0% |
| Financial & insurance services | 6.7% | 6.7% |
| Wholesale & retail services | 0.0% | 0.0% |
| Public administration | 2.2% | 2.2% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 16.3% | 16.3% |
| Other | 52.6% | 52.6% |
| City | Population | Household Income | National Avg. |
| Seneca, NE | 20 | $0 | 100.0% |
| Mullen, NE | 476 | $60,633 | 25.5% |
| City | Population | Household Income | National Avg. |
| Tees Toh, AZ | 476 | $47,607 | 41.5% |
| Benson, IL | 476 | $98,127 | 20.6% |
| Kenvir, KY | 476 | $45,631 | 43.9% |
| Ogilvie, MN | 476 | $65,908 | 19.0% |
| Wrenshall, MN | 476 | $112,246 | 38.0% |
| Mullen, NE | 476 | $60,633 | 25.5% |