| Rank | County | Households |
|---|---|---|
| 1 | Bergen County, New Jersey | 333,073 |
| 2 | Middlesex County, New Jersey | 278,513 |
| 3 | Essex County, New Jersey | 276,441 |
| 4 | Hudson County, New Jersey | 240,526 |
| 5 | Monmouth County, New Jersey | 233,120 |
| 6 | Ocean County, New Jersey | 222,863 |
| 7 | Camden County, New Jersey | 190,337 |
| 8 | Union County, New Jersey | 184,584 |
| 9 | Morris County, New Jersey | 179,581 |
| 10 | Burlington County, New Jersey | 165,727 |
| 11 | Passaic County, New Jersey | 161,488 |
| 12 | Mercer County, New Jersey | 129,933 |
| 13 | Somerset County, New Jersey | 114,348 |
| 14 | Gloucester County, New Jersey | 103,548 |
| 15 | Atlantic County, New Jersey | 101,418 |
| 16 | Sussex County, New Jersey | 55,554 |
| 17 | Cumberland County, New Jersey | 50,868 |
| 18 | Hunterdon County, New Jersey | 47,455 |
| 19 | Cape May County, New Jersey | 44,788 |
| 20 | Warren County, New Jersey | 41,685 |
| 21 | Salem County, New Jersey | 25,004 |
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