| County : | Delaware County |
| State : | Ohio (OH) |
| Land Area : | 443.10 sq mi |
| Water Area : | 14.23 sq mi |
| Latitude : | 40.2789411 |
| Longitude : | -83.0074622 |
| Population (2010): | 174,214 |
| Population Estimate (2012) : | 174,454 |
| Population Density : | 393.18/sq mi |
| Housing Units (2012) : | 66,378 |
| Median Household Income (2012) : | $90,499 (Ohio : $48,246, USA : $53,046) |
| Median Family Income (2012) : | $104,576 (Ohio : $61,163, USA : $64,585) |
| Median House Price (2012) : | $250,700 (Ohio : $133,700, USA : $181,400) |
Delaware County Cities / Towns
| Ashley Village (1,330) | Columbus City (787,033) | Delaware City (34,753) |
| Dublin City (41,751) | Galena Village (653) | Kilbourne (139) |
| Ostrander Village (643) | Powell City (11,500) | Radnor (201) |
| Shawnee Hills Village (681) | Sunbury Village (4,389) | Westerville City (36,120) |
Delaware County Zip Codes
| 43003 (2,917) | 43011 (7,491) | 43015 (48,107) |
| 43016 (31,306) | 43017 (37,626) | 43021 (10,301) |
| 43031 (12,318) | 43032 (77) | 43035 (24,721) |
| 43040 (31,790) | 43061 (3,967) | 43065 (38,821) |
| 43066 (1,328) | 43074 (11,655) | 43082 (29,946) |
| 43240 (3,469) | 43334 (6,651) | 43342 (3,228) |
| 43344 (5,677) | 43356 (1,103) |