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Cosham

Cosham is one of 14 wards in Portsmouth, home to 14,447 people in 5,858 households (Census 2021). Homes sold for a median of £303,000 over the past two years, 17% above the Portsmouth median. On average 11% of the land within 500 metres of a home postcode is green space — 12% above the Portsmouth average.

Ward E05002445 · 312 postcodes · Updated 24 October 2026
14,447residentsCensus 2021
£303kmedian sale price281 sales, 24 months
11%green within 500 mpostcode average
90%gigabit broadbandaverage of postcodes
Cosham in PortsmouthPostcodes in Cosham highlighted; the rest of Portsmouth in grey
Map of Portsmouth with Cosham highlighted

People and homes.

14,447 residents in 5,858 households, next to the Portsmouth average.

18%
aged 15–29
18%
aged 65 and over
61%
owner-occupied homes
16%
privately rented
21%
socially rented
26%
flats in purpose-built blocks

Source: Census 2021, Office for National Statistics

Prices.

Quarterly median of standard sales in Cosham and Portsmouth.

CoshamPortsmouth
£231k£266k£301k£336k2024 Q12024 Q22024 Q32024 Q42025 Q12025 Q22025 Q32025 Q42026 Q12026 Q22026 Q3
£231k£266k£301k£336k2024 Q12025 Q12026 Q12026 Q3

Source: HM Land Registry Price Paid Data, sales to 28 Aug 2026

Safety.

Police recorded 2,136 crimes and incidents in Cosham in the 12 months to Aug 2026: 148 per 1,000 residents, against 129 across Portsmouth.

Last 12 monthsPrevious 12 months
0114227Sept 2024Nov 2024Jan 2025Mar 2025May 2025Jul 2025Sept 2025Nov 2025Jan 2026Mar 2026May 2026Jul 2026
0114227Sept 2024Mar 2025Sept 2025Mar 2026

Police.uk records crimes by approximate location, not by where victims or offenders live. Busy streets, shops, stations and nightlife record more. Figures are counts, not a measure of personal risk. Rates per resident are higher wherever many people visit but few live, such as city centres.

Source: data.police.uk street-level crime, Hampshire and Isle of Wight Constabulary (Open Government Licence v3.0)

Food hygiene.

Food businesses in Cosham with a published hygiene rating.

124rated food businessesin total
88%rated good or very good (4 or 5)Portsmouth: 82%
6rated 2 or belowlatest inspection

Council food safety officers rate businesses from 0 (urgent improvement necessary) to 5 (very good) for hygiene, the state of the premises and how food safety is managed. A rating reflects the standards found on the day of inspection, not the quality of the food.

Source: Food Standards Agency, food hygiene rating data as of 26 October 2026 (Open Government Licence)