| Index | Black Diamond | Washington | National |
| Income per capita | $74,630 | $48,431 | $44,883 |
| Median household income | $167,108 | $91,816 | $81,333 |
| Median income owner occupied | $183,244 | $120,601 | $106,172 |
| Median income renter occupied | $107,677 | $60,275 | $52,080 |
| Median earnings male | $92,351 | $60,502 | $54,343 |
| Median earnings female | $67,275 | $39,812 | $38,439 |
| Unemployment rate | 1.4% | 4.5% | 4.9% |
| Poverty level | 2.7% | 12.7% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 18.7% | 18.7% |
| Manufacturing sector | 10.7% | 10.7% |
| Financial & insurance services | 0.5% | 0.5% |
| Wholesale & retail services | 12.4% | 12.4% |
| Public administration | 8.1% | 8.1% |
| Transportation, warehousing & utilities | 12.9% | 12.9% |
| Education, health & social services | 11.7% | 11.7% |
| Other | 22.4% | 22.4% |
| City | Population | Household Income | National Avg. |
| Snoqualmie, WA | 13,954 | $239,110 | 194.0% |
| Newcastle, WA | 12,354 | $230,429 | 183.3% |
| Tanner, WA | 1,120 | $200,418 | 146.4% |
| Mirrormont, WA | 4,225 | $195,265 | 140.1% |
| Shadow Lake, WA | 2,445 | $183,806 | 126.0% |
| Black Diamond, WA | 4,811 | $167,108 | 105.5% |
| City | Population | Household Income | National Avg. |
| Lindstrom, MN | 4,811 | $155,643 | 91.4% |
| East Freehold, NJ | 4,811 | $239,869 | 194.9% |
| Pleasant Run, OH | 4,811 | $96,154 | 18.2% |
| Farrell, PA | 4,811 | $39,040 | 52.0% |
| Fountain Hill, PA | 4,811 | $69,149 | 15.0% |
| Black Diamond, WA | 4,811 | $167,108 | 105.5% |