| Index | Mount Carroll | Illinois | National |
| Income per capita | $41,447 | $47,397 | $44,883 |
| Median household income | $82,297 | $88,967 | $81,333 |
| Median income owner occupied | $90,960 | $111,557 | $106,172 |
| Median income renter occupied | $55,619 | $52,117 | $52,080 |
| Median earnings male | $58,994 | $60,185 | $54,343 |
| Median earnings female | $44,783 | $40,368 | $38,439 |
| Unemployment rate | 2.3% | 6.6% | 4.9% |
| Poverty level | 10.3% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 7.7% | 7.7% |
| Manufacturing sector | 23.7% | 23.7% |
| Financial & insurance services | 0.9% | 0.9% |
| Wholesale & retail services | 10.4% | 10.4% |
| Public administration | 12.4% | 12.4% |
| Transportation, warehousing & utilities | 14.2% | 14.2% |
| Education, health & social services | 12.7% | 12.7% |
| Other | 18.0% | 18.0% |
| City | Population | Household Income | National Avg. |
| Pearl City, IL | 864 | $98,482 | 21.1% |
| Coleta, IL | 236 | $84,640 | 4.1% |
| Andover, IA | 166 | $78,094 | 4.0% |
| Shannon, IL | 763 | $78,085 | 4.0% |
| Thomson, IL | 378 | $77,432 | 4.8% |
| Mount Carroll, IL | 1,557 | $82,297 | 1.2% |
| City | Population | Household Income | National Avg. |
| Oblong, IL | 1,557 | $70,565 | 13.2% |
| Seeley Lake, MT | 1,557 | $63,457 | 22.0% |
| East Carbon-Sunnyside, UT | 1,557 | $48,339 | 40.6% |
| Glenelg, NB | 1,557 | n/a | |
| Newton, AL | 1,558 | $88,604 | 8.9% |
| Mount Carroll, IL | 1,557 | $82,297 | 1.2% |