| Index | Harlingen | New Jersey | National |
| Income per capita | $150,108 | $55,297 | $44,883 |
| Median household income | $362,607 | $108,915 | $81,333 |
| Median income owner occupied | $359,051 | $143,334 | $106,172 |
| Median income renter occupied | $0 | $61,880 | $52,080 |
| Median earnings male | $0 | $69,742 | $54,343 |
| Median earnings female | $192,249 | $46,406 | $38,439 |
| Unemployment rate | 2.4% | 5.4% | 4.9% |
| Poverty level | 0.0% | 10.9% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 5.4% | 5.4% |
| Manufacturing sector | 28.9% | 28.9% |
| Financial & insurance services | 0.0% | 0.0% |
| Wholesale & retail services | 0.0% | 0.0% |
| Public administration | 12.1% | 12.1% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 6.7% | 6.7% |
| Other | 47.0% | 47.0% |
| City | Population | Household Income | National Avg. |
| Princeton Junction, NJ | 2,052 | $341,742 | 320.2% |
| Blawenburg, NJ | 101 | $332,214 | 308.5% |
| Pleasant Plains, NJ | 643 | $316,694 | 289.4% |
| Cranbury, NJ | 2,281 | $316,184 | 288.8% |
| Blackwells Mills, NJ | 9,882 | $298,230 | 266.7% |
| Harlingen, NJ | 492 | $362,607 | 345.8% |
| City | Population | Household Income | National Avg. |
| Ualapue, HI | 492 | $69,031 | 15.1% |
| Diagonal, IA | 492 | $90,388 | 11.1% |
| Dayton, IL | 492 | $130,306 | 60.2% |
| Matthews, IN | 492 | $61,709 | 24.1% |
| Martin, MI | 492 | $67,701 | 16.8% |
| Harlingen, NJ | 492 | $362,607 | 345.8% |