| Index | Mount Arlington | New Jersey | National |
| Income per capita | $68,466 | $55,297 | $44,883 |
| Median household income | $140,111 | $108,915 | $81,333 |
| Median income owner occupied | $163,553 | $143,334 | $106,172 |
| Median income renter occupied | $100,293 | $61,880 | $52,080 |
| Median earnings male | $76,439 | $69,742 | $54,343 |
| Median earnings female | $55,661 | $46,406 | $38,439 |
| Unemployment rate | 1.5% | 5.4% | 4.9% |
| Poverty level | 4.5% | 10.9% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 23.5% | 23.5% |
| Manufacturing sector | 19.4% | 19.4% |
| Financial & insurance services | 8.9% | 8.9% |
| Wholesale & retail services | 10.2% | 10.2% |
| Public administration | 1.2% | 1.2% |
| Transportation, warehousing & utilities | 7.9% | 7.9% |
| Education, health & social services | 7.5% | 7.5% |
| Other | 20.3% | 20.3% |
| City | Population | Household Income | National Avg. |
| Mountain Lakes, NJ | 4,398 | $339,890 | 317.9% |
| Chatham, NJ | 8,913 | $296,410 | 264.4% |
| Allamuchy, NJ | 116 | $272,731 | 235.3% |
| Mendham, NJ | 5,076 | $252,986 | 211.0% |
| Bernardsville, NJ | 7,804 | $243,894 | 199.9% |
| Mount Arlington, NJ | 5,933 | $140,111 | 72.3% |
| City | Population | Household Income | National Avg. |
| Kennebunk, ME | 5,932 | $121,694 | 49.6% |
| Saint-Césaire, QC | 5,934 | n/a | |
| West Clarkston-Highland, WA | 5,931 | $68,462 | 15.8% |
| Gas City, IN | 5,935 | $81,271 | 0.1% |
| Annapolis, Subd. A, NS | 5,937 | n/a | |
| Mount Arlington, NJ | 5,933 | $140,111 | 72.3% |