| Index | Harrington | Delaware | National |
| Income per capita | $30,020 | $46,894 | $44,883 |
| Median household income | $82,876 | $90,340 | $81,333 |
| Median income owner occupied | $108,906 | $109,575 | $106,172 |
| Median income renter occupied | $54,670 | $56,447 | $52,080 |
| Median earnings male | $43,247 | $57,948 | $54,343 |
| Median earnings female | $41,602 | $43,895 | $38,439 |
| Unemployment rate | 3.5% | 4.7% | 4.9% |
| Poverty level | 21.9% | 12.0% | 15.1% |


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| Labour Type | Male | Female |
| Construction industry | 7.9% | 7.9% |
| Manufacturing sector | 9.8% | 9.8% |
| Financial & insurance services | 5.2% | 5.2% |
| Wholesale & retail services | 24.8% | 24.8% |
| Public administration | 13.5% | 13.5% |
| Transportation, warehousing & utilities | 8.6% | 8.6% |
| Education, health & social services | 2.9% | 2.9% |
| Other | 20.9% | 20.9% |
| City | Population | Household Income | National Avg. |
| Highland Acres, DE | 4,053 | $139,080 | 71.0% |
| Viola, DE | 177 | $127,881 | 57.2% |
| Magnolia, DE | 392 | $121,663 | 49.6% |
| Riverview, DE | 2,638 | $118,795 | 46.1% |
| Slaughter Beach, DE | 309 | $111,513 | 37.1% |
| Harrington, DE | 3,741 | $82,876 | 1.9% |
| City | Population | Household Income | National Avg. |
| Gaylord, MI | 3,741 | $49,395 | 39.3% |
| Port Monmouth, NJ | 3,741 | $122,660 | 50.8% |
| Strathmore, CA | 3,742 | $45,088 | 44.6% |
| Aledo, IL | 3,742 | $75,668 | 7.0% |
| Lac-Etchemin, QC | 3,742 | n/a | |
| Harrington, DE | 3,741 | $82,876 | 1.9% |