Population of Counties -- Delaware: 1890-1990
County19901980197019601950194019301920191019001890
DELAWARE666,168594,338548,104446,292318,085266,505238,380223,003202,322184,735168,493
Kent110,99398,21981,89265,65137,87034,44131,84131,02332,72132,76232,664
New Castle441,946398,115385,856307,446218,879179,562161,032148,239123,188109,69797,182
Sussex113,22998,00480,35673,19561,33652,50245,50743,74146,41342,27638,647

 

Population of Counties -- Delaware: 1790-1880

County1880187018601850184018301820181018001790
DELAWARE146,608125,015112,21691,53278,08576,74872,74972,67464,27359,096
Kent32,87429,80427,80422,81619,87219,91320,79320,49519,55418,920
New Castle77,71663,51554,79742,78033,12029,72027,89924,42925,36119,688
Sussex36,01831,69629,61525,93625,09327,11524,05727,75019,35820,488

 

Delaware Notes

Delaware was one of the 13 original States, and has had essentially its current boundaries since Colonial times.