The median income of Sussex County residents was $40,498 per year, adjusted for inflation. It had 53,361 households with a population of 142,298.
The county with the highest median resident income in the state was Hunterdon County with $50,826 per year after adjusting for inflation – $10,328 more than Sussex County. It had 47,180 households with a population of 125,051.
The county with the lowest median resident income in the state was Cumberland County with $23,298 per year after adjusting for inflation – $17,200 less than Sussex County. It had 50,608 households with a population of 153,400.
New Jersey counties by earnings per resident (2018)
| Rank | County | Earnings per resident |
|---|---|---|
| 1 | Hunterdon County | $50,826 |
| 2 | Morris County | $48,924 |
| 3 | Somerset County | $48,195 |
| 4 | Bergen County | $43,048 |
| 5 | Monmouth County | $41,443 |
| 6 | Sussex County | $40,498 |
| 7 | Burlington County | $40,078 |
| 8 | Middlesex County | $39,908 |
| 9 | Gloucester County | $37,141 |
| 10 | Warren County | $36,556 |
| 11 | Mercer County | $34,532 |
| 12 | Union County | $34,469 |
| 13 | Hudson County | $33,612 |
| 14 | Ocean County | $32,718 |
| 15 | Camden County | $32,140 |
| 16 | Salem County | $31,437 |
| 17 | Essex County | $31,139 |
| 18 | Cape May County | $30,817 |
| 19 | Passaic County | $30,432 |
| 20 | Atlantic County | $28,597 |
| 21 | Cumberland County | $23,298 |
* All values are inflation-adjusted
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