| Index | Franklin Grove | Illinois | National |
| Income per capita | $27,341 | $31,502 | $29,829 |
| Median household income | $46,080 | $59,196 | $55,322 |
| Median income owner occupied | $63,750 | $75,354 | $70,586 |
| Median income renter occupied | $0 | $34,488 | $35,192 |
| Median earnings male | $45,273 | $40,474 | $36,919 |
| Median earnings female | $20,938 | $27,197 | $26,250 |
| Unemployment rate | 1.1% | 5.3% | 4.7% |
| Poverty level | 8.5% | 14.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 8.5% | 8.5% |
| Manufacturing sector | 36.3% | 36.3% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 3.4% | 3.4% |
| Public administration | 10.7% | 10.7% |
| Transportation, warehousing & utilities | 15.0% | 15.0% |
| Education, health & social services | 5.6% | 5.6% |
| Other | 19.2% | 19.2% |
| City | Population | Household Income | National Avg. |
| Lost Nation, IL | 570 | $112,697 | 103.7% |
| Steward, IL | 350 | $81,875 | 48.0% |
| Grand Detour, IL | 351 | $67,976 | 22.9% |
| West Brooklyn, IL | 187 | $65,417 | 18.2% |
| Hillcrest, IL | 1,672 | $62,656 | 13.3% |
| Franklin Grove, IL | 948 | $46,080 | 16.7% |
| City | Population | Household Income | National Avg. |
| Littlerock, CA | 948 | $38,958 | 29.6% |
| Frederica, DE | 948 | $47,796 | 13.6% |
| Olinda, HI | 948 | $84,545 | 52.8% |
| Nauvoo, IL | 948 | $50,938 | 7.9% |
| Pigeon Creek, OH | 948 | $98,000 | 77.1% |
| Franklin Grove, IL | 948 | $46,080 | 16.7% |