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
Administrative area of land and sea
- 6,019.00 hectares
- 14,874.00 acres
- 23.20 square miles
Land area
- 4,028.00 hectares
- 9,954.00 acres
- 15.50 square miles
Sea area of Portsmouth Harbour
- 1,431.18 hectares
- 3,536.54 acres
- 5.53 square miles
Sea area of Langstone Harbour
- 537.61 hectares
- 1,328.47 acres
- 2.08 square miles
These figures have been calculated using the City Council’s Geographic Information System (GIS) and may be different to other published figures.