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City of Portsmouth geographical area
including the geographic centre of the city
Portsmouth City Council has used the council’s Geographic Information System (GIS) to calculate the geographic centre of Portsmouth.
Geographic centres
- land only geographic centre is approximately 31 Kenyon Road, North End – British National Grid Reference: 465625.99 102495.00
- geographic centre of Portsmouth’s administrative area, which includes the sea, is approximately Whaley Road, Whale Island – British National Grid Reference: 463702.95 102490.95.
| Portsmouth geographic areas | hectares (ha) | acres | sq miles |
|---|---|---|---|
| Administrative area of land and sea | 6,019.00 | 14,874.00 | 23.20 |
| Land area | 4,028.00 | 9,954.00 | 15.50 |
| Sea area of Portsmouth Harbour | 1,431.18 | 3,536.54 | 5.53 |
| Sea area of Langstone Harbour | 537.61 | 1,328.47 | 2.08 |
These figures have been calculated using the City Council’s Geographic Information System (GIS) and may be different to other published figures.