| Index | Sumner | Washington | National |
| Income per capita | $36,402 | $32,999 | $29,829 |
| Median household income | $68,447 | $62,848 | $55,322 |
| Median income owner occupied | $87,658 | $79,796 | $70,586 |
| Median income renter occupied | $57,850 | $41,061 | $35,192 |
| Median earnings male | $53,191 | $41,953 | $36,919 |
| Median earnings female | $35,364 | $27,576 | $26,250 |
| Unemployment rate | 3.1% | 4.3% | 4.7% |
| Poverty level | 10.7% | 12.7% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 11.2% | 11.2% |
| Manufacturing sector | 14.6% | 14.6% |
| Financial & insurance services | 0.4% | 0.4% |
| Wholesale & retail services | 24.9% | 24.9% |
| Public administration | 7.2% | 7.2% |
| Transportation, warehousing & utilities | 12.1% | 12.1% |
| Education, health & social services | 9.6% | 9.6% |
| Other | 18.7% | 18.7% |
| City | Population | Household Income | National Avg. |
| Shadow Lake, WA | 2,385 | $121,719 | 120.0% |
| Ravensdale, WA | 814 | $121,492 | 119.6% |
| Lake Holm, WA | 3,332 | $120,673 | 118.1% |
| Dash Point, WA | 1,008 | $118,672 | 114.5% |
| Maple Valley, WA | 26,739 | $117,706 | 112.8% |
| Sumner, WA | 10,246 | $68,447 | 23.7% |
| City | Population | Household Income | National Avg. |
| Doraville, GA | 10,244 | $61,007 | 10.3% |
| Shelburne, ON | 10,249 | n/a | |
| Somers Point, NJ | 10,250 | $63,150 | 14.1% |
| Belle Chasse, LA | 10,241 | $85,360 | 54.3% |
| Canandaigua, NY | 10,241 | $48,125 | 13.0% |
| Sumner, WA | 10,246 | $68,447 | 23.7% |
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