| Index | Walnut Grove | California | National |
| Income per capita | $84,669 | $45,980 | $44,883 |
| Median household income | $112,023 | $95,535 | $81,333 |
| Median income owner occupied | $169,670 | $130,228 | $106,172 |
| Median income renter occupied | $62,480 | $64,137 | $52,080 |
| Median earnings male | $0 | $52,776 | $54,343 |
| Median earnings female | $37,913 | $38,938 | $38,439 |
| Unemployment rate | 4.2% | 6.8% | 4.9% |
| Poverty level | 0.0% | 15.8% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 10.5% | 10.5% |
| Manufacturing sector | 16.4% | 16.4% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 14.8% | 14.8% |
| Public administration | 0.0% | 0.0% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 0.0% | 0.0% |
| Other | 58.4% | 58.4% |
| City | Population | Household Income | National Avg. |
| Wilton, CA | 5,360 | $161,919 | 99.1% |
| Elk Grove, CA | 178,848 | $148,642 | 82.8% |
| Woodbridge, CA | 3,930 | $142,387 | 75.1% |
| Galt, CA | 26,926 | $108,357 | 33.2% |
| Collierville, CA | 2,401 | $105,062 | 29.2% |
| Walnut Grove, CA | 1,321 | $112,023 | 37.7% |
| City | Population | Household Income | National Avg. |
| Lake Catherine, IL | 1,321 | $115,220 | 41.7% |
| Lyles, TN | 1,321 | $70,648 | 13.1% |
| Cerro Gordo, IL | 1,322 | $85,378 | 5.0% |
| Tower Lakes, IL | 1,320 | $210,924 | 159.3% |
| Cayuga, IN | 1,320 | $64,712 | 20.4% |
| Walnut Grove, CA | 1,321 | $112,023 | 37.7% |