| Index | Poplar Grove | Illinois | National |
| Income per capita | $58,058 | $47,397 | $44,883 |
| Median household income | $111,390 | $88,967 | $81,333 |
| Median income owner occupied | $118,260 | $111,557 | $106,172 |
| Median income renter occupied | $108,098 | $52,117 | $52,080 |
| Median earnings male | $86,954 | $60,185 | $54,343 |
| Median earnings female | $46,322 | $40,368 | $38,439 |
| Unemployment rate | 5.3% | 6.6% | 4.9% |
| Poverty level | 5.5% | 14.0% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 9.2% | 9.2% |
| Manufacturing sector | 21.4% | 21.4% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 2.7% | 2.7% |
| Public administration | 6.2% | 6.2% |
| Transportation, warehousing & utilities | 21.3% | 21.3% |
| Education, health & social services | 15.2% | 15.2% |
| Other | 21.7% | 21.7% |
| City | Population | Household Income | National Avg. |
| Timberlane, IL | 1,195 | $256,814 | 215.8% |
| Roscoe, IL | 10,953 | $145,325 | 78.7% |
| Rockton, IL | 8,007 | $138,074 | 69.8% |
| Fontana-on-Geneva Lake, WI | 1,552 | $132,923 | 63.4% |
| Candlewick Lake, IL | 5,537 | $118,466 | 45.7% |
| Poplar Grove, IL | 4,641 | $111,390 | 37.0% |
| City | Population | Household Income | National Avg. |
| Benton, KY | 4,641 | $78,758 | 3.2% |
| Montgomery, NY | 4,641 | $130,822 | 60.8% |
| Wamego, KS | 4,642 | $79,913 | 1.7% |
| Aurora, NE | 4,642 | $96,368 | 18.5% |
| Saint-Denis-de-Brompton, QC | 4,642 | n/a | |
| Poplar Grove, IL | 4,641 | $111,390 | 37.0% |