| Index | Mercerville | New Jersey | National |
| Income per capita | $40,179 | $37,538 | $29,829 |
| Median household income | $97,969 | $73,702 | $55,322 |
| Median income owner occupied | $104,036 | $97,281 | $70,586 |
| Median income renter occupied | $66,283 | $42,169 | $35,192 |
| Median earnings male | $55,638 | $47,369 | $36,919 |
| Median earnings female | $38,841 | $32,116 | $26,250 |
| Unemployment rate | 3.5% | 5.2% | 4.7% |
| Poverty level | 4.2% | 10.9% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 9.1% | 9.1% |
| Manufacturing sector | 8.9% | 8.9% |
| Financial & insurance services | 5.0% | 5.0% |
| Wholesale & retail services | 16.1% | 16.1% |
| Public administration | 11.7% | 11.7% |
| Transportation, warehousing & utilities | 6.7% | 6.7% |
| Education, health & social services | 11.4% | 11.4% |
| Other | 28.9% | 28.9% |
| 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% |
| Mercerville, NJ | 12,783 | $97,969 | 77.1% |
| City | Population | Household Income | National Avg. |
| Verde Village, AZ | 12,780 | $55,893 | 1.0% |
| Riviera Beach, MD | 12,780 | $94,773 | 71.3% |
| McComb, MS | 12,788 | $30,197 | 45.4% |
| Miller Place, NY | 12,775 | $123,984 | 124.1% |
| Lindsay, CA | 12,793 | $37,073 | 33.0% |
| Mercerville, NJ | 12,783 | $97,969 | 77.1% |