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This Delaware county map shows the 3 counties and their names. Listed below are the county details with population, housing units, and the area of each county in Delaware. New Castle County has historically been more industrial while Sussex and Kent have been agricultural.
| County | Delaware County Population | Housing Units | Area (sq. mi.) |
|---|---|---|---|
| Kent County | 126697 | 50481 | 590 |
| New Castle County | 500265 | 199521 | 426 |
| Sussex County | 156638 | 93070 | 938 |