| ZIP Code | ZIP Code City/Town | ZIP Type | Average Adjusted Income(2020) |
|---|
| Eureka | Standard | $49,140 |
| Eureka | Standard | $63,670 |
| McKinleyville | Standard | $66,630 |
| Arcata | Standard | $49,610 |
| Bayside | Standard | $101,070 |
| Blue Lake | Standard | $64,370 |
| Bridgeville | Standard | $43,280 |
| Carlotta | Standard | $59,850 |
| Ferndale | Standard | $75,520 |
| Fortuna | Standard | $60,000 |
| Garberville | Standard | $57,910 |
| Hoopa | Standard | $42,550 |
| Hydesville | Standard | $78,060 |
| Kneeland | Standard | $85,410 |
| Loleta | Standard | $58,880 |
| Myers Flat | Standard | $41,780 |
| Petrolia | Standard | $48,530 |
| Redway | Standard | $51,940 |
| Rio Dell | Standard | $46,960 |
| Samoa | Standard | $33,810 |
| Scotia | Standard | $45,400 |
| Trinidad | Standard | $73,980 |
| Willow Creek | Standard | $56,080 |
| Whitethorn | Standard | $53,370 |
Source: US Internal Revenue Service