| Delaware County Formation years | ||||||||||||||
| 1673 | 1674 | 1678 | 1680 | 1681 | 1682 | 1685 | 1687 | 1704 | 1760 | 1775 | 1841 | |||
| Delaware Census Year with Modern Map overlayed: | ||||||||||||||
| 1790-1840 | 1850-1930 | |||||||||||||
| Map Abbreviations | ||||
|---|---|---|---|---|
| unorg. = unorganized g. = gained w. = with fr. = from atmt. = attachment exch = exchanged nca.= non county area ch. = changed |
Ke - Kent NC - New Castle Su - Sussex |
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