| Index | Monmouth Junction | New Jersey | National |
| Income per capita | $52,191 | $37,538 | $29,829 |
| Median household income | $121,127 | $73,702 | $55,322 |
| Median income owner occupied | $174,896 | $97,281 | $70,586 |
| Median income renter occupied | $84,977 | $42,169 | $35,192 |
| Median earnings male | $89,591 | $47,369 | $36,919 |
| Median earnings female | $41,895 | $32,116 | $26,250 |
| Unemployment rate | 1.5% | 5.2% | 4.7% |
| Poverty level | 4.1% | 10.9% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 2.4% | 2.4% |
| Manufacturing sector | 19.7% | 19.7% |
| Financial & insurance services | 11.9% | 11.9% |
| Wholesale & retail services | 10.4% | 10.4% |
| Public administration | 8.2% | 8.2% |
| Transportation, warehousing & utilities | 9.9% | 9.9% |
| Education, health & social services | 5.0% | 5.0% |
| Other | 29.2% | 29.2% |
| City | Population | Household Income | National Avg. |
| Harlingen, NJ | 481 | $240,682 | 335.1% |
| Princeton Junction, NJ | 1,989 | $228,357 | 312.8% |
| Blawenburg, NJ | 99 | $219,688 | 297.1% |
| Pleasant Plains, NJ | 627 | $211,547 | 282.4% |
| Cranbury, NJ | 2,213 | $210,486 | 280.5% |
| Monmouth Junction, NJ | 8,911 | $121,127 | 118.9% |
| City | Population | Household Income | National Avg. |
| Berkeley, MO | 8,912 | $35,027 | 36.7% |
| Franklin, KY | 8,909 | $45,983 | 16.9% |
| Earlimart, CA | 8,908 | $40,699 | 26.4% |
| Orosi, CA | 8,908 | $43,221 | 21.9% |
| Rock Falls, IL | 8,914 | $44,264 | 20.0% |
| Monmouth Junction, NJ | 8,911 | $121,127 | 118.9% |