| Zip Code : | 52035 |
| City : | Colesburg city, Osterdock city |
| County : | Clayton County, Delaware County |
| State : | Iowa (IA) |
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| Land Area : | 53.67 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 42.6707375 |
| Longitude : | -91.1812135 |
| | |
| Population (2010): | 1,010 |
| Population Estimate (2012) : | 996 |
| Population Density : | 18.82/sq mi |
| Housing Units (2012) : | 468 |
| Median Household Income (2012) : | $44,583 (Iowa : $51,129, USA : $53,046) |
| Median Family Income (2012) : | $53,393 (Iowa : $64,772, USA : $64,585) |
| Median House Price (2012) : | $94,100 (Iowa : $123,000, USA : $181,400) |