| Index | Northfield | New Jersey | National |
| Income per capita | $42,331 | $37,538 | $29,829 |
| Median household income | $84,464 | $73,702 | $55,322 |
| Median income owner occupied | $91,250 | $97,281 | $70,586 |
| Median income renter occupied | $37,426 | $42,169 | $35,192 |
| Median earnings male | $50,742 | $47,369 | $36,919 |
| Median earnings female | $36,423 | $32,116 | $26,250 |
| Unemployment rate | 4.1% | 5.2% | 4.7% |
| Poverty level | 4.0% | 10.9% | 15.1% |
| Labour Type | Male | Female |
| Construction industry | 6.4% | 6.4% |
| Manufacturing sector | 3.9% | 3.9% |
| Financial & insurance services | 3.3% | 3.3% |
| Wholesale & retail services | 13.1% | 13.1% |
| Public administration | 5.7% | 5.7% |
| Transportation, warehousing & utilities | 6.2% | 6.2% |
| Education, health & social services | 12.1% | 12.1% |
| Other | 47.6% | 47.6% |
| City | Population | Household Income | National Avg. |
| Barclay, NJ | 4,044 | $145,588 | 163.2% |
| Port Republic, NJ | 1,127 | $141,250 | 155.3% |
| Linwood, NJ | 6,719 | $116,058 | 109.8% |
| Longport, NJ | 803 | $107,813 | 94.9% |
| Margate City, NJ | 5,921 | $101,354 | 83.2% |
| Northfield, NJ | 8,088 | $84,464 | 52.7% |
| City | Population | Household Income | National Avg. |
| Bellevue, PA | 8,088 | $49,991 | 9.6% |
| Garden City Park, NY | 8,087 | $113,459 | 105.1% |
| Oak Brook, IL | 8,085 | $140,743 | 154.4% |
| Ellsworth, ME | 8,085 | $60,718 | 9.8% |
| Oroville East, CA | 8,093 | $73,706 | 33.2% |
| Northfield, NJ | 8,088 | $84,464 | 52.7% |
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