FIPS
Code | State | County name | 2003 urban
influence code | Description | 2000 population |
|---|
| 34001 | NJ | Atlantic County | 2 | Small-in a metro area with fewer than 1 million residents | 252,552 |
| 34003 | NJ | Bergen County | 1 | Large-in a metro area with at least 1 million residents or more | 884,118 |
| 34005 | NJ | Burlington County | 1 | Large-in a metro area with at least 1 million residents or more | 423,394 |
| 34007 | NJ | Camden County | 1 | Large-in a metro area with at least 1 million residents or more | 508,932 |
| 34009 | NJ | Cape May County | 2 | Small-in a metro area with fewer than 1 million residents | 102,326 |
| 34011 | NJ | Cumberland County | 2 | Small-in a metro area with fewer than 1 million residents | 146,438 |
| 34013 | NJ | Essex County | 1 | Large-in a metro area with at least 1 million residents or more | 793,633 |
| 34015 | NJ | Gloucester County | 1 | Large-in a metro area with at least 1 million residents or more | 254,673 |
| 34017 | NJ | Hudson County | 1 | Large-in a metro area with at least 1 million residents or more | 608,975 |
| 34019 | NJ | Hunterdon County | 1 | Large-in a metro area with at least 1 million residents or more | 121,989 |
| 34021 | NJ | Mercer County | 2 | Small-in a metro area with fewer than 1 million residents | 350,761 |
| 34023 | NJ | Middlesex County | 1 | Large-in a metro area with at least 1 million residents or more | 750,162 |
| 34025 | NJ | Monmouth County | 1 | Large-in a metro area with at least 1 million residents or more | 615,301 |
| 34027 | NJ | Morris County | 1 | Large-in a metro area with at least 1 million residents or more | 470,212 |
| 34029 | NJ | Ocean County | 1 | Large-in a metro area with at least 1 million residents or more | 510,916 |
| 34031 | NJ | Passaic County | 1 | Large-in a metro area with at least 1 million residents or more | 489,049 |
| 34033 | NJ | Salem County | 1 | Large-in a metro area with at least 1 million residents or more | 64,285 |
| 34035 | NJ | Somerset County | 1 | Large-in a metro area with at least 1 million residents or more | 297,490 |
| 34037 | NJ | Sussex County | 1 | Large-in a metro area with at least 1 million residents or more | 144,166 |
| 34039 | NJ | Union County | 1 | Large-in a metro area with at least 1 million residents or more | 522,541 |
| 34041 | NJ | Warren County | 2 | Small-in a metro area with fewer than 1 million residents | 102,437 |
