Environment in Portsmouth

Portsmouth in South East scores 65/100 (good) for environment, measured against the national average — a score of 60 is typical for the country.

Green spaces

313

Deprivation decile

4

NO₂ (µg/m³)

11.7

Flood Zone 3 (% area)

11%

Road noise ≥55 dB (% area)

41%

How we measure this·Guide: What makes a good neighbourhood?

Data last updated: 19 October 2026