SO51
Postcode districtPostcode district covering Romsey and Cupernham, in Test Valley.
Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an SO51 postcode. How census figures are added up
Gigabit coverage by postcode district
Connected Nations (Ofcom) · January 2026
In SO51, 69.4% of homes and businesses could get gigabit-capable broadband in January 2026.
How SO51 compares
Each dot is a postcode district. The black line marks the middle one.
Is SO51 safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SO51 at a rate of 54.3 per 1,000 people.
That compares with 86.0 per 1,000 people across SO.
In August 2026 alone, 147 cases of crime and anti-social behaviour were recorded in SO51.
In the 12 months to August 2026, the most common types were violence and sexual offences (570), other crime (321) and anti-social behaviour (205).
A year earlier, the recorded crime rate in SO51 was 54.5 per 1,000 people.
Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.
Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.
Deprivation in SO51, neighbourhood by neighbourhood
- Deprivation is ranked by neighbourhood, so SO51 has no single figure. Of its 20 neighbourhoods with a rank:
- Decile 5: 2 neighbourhoods
- Decile 6: 3 neighbourhoods
- Decile 7: 4 neighbourhoods
- Decile 8: 3 neighbourhoods
- Decile 9: 4 neighbourhoods
- Decile 10 (England’s least deprived 10%): 4 neighbourhoods
English Indices of Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in England.
Neighbourhoods in SO51
| Name | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
|---|---|---|---|---|
| Test Valley 009C | 2,257 | 44.8 per 1,000 | 5 | 44.0% |
| Test Valley 009D | 1,425 | 43.0 per 1,000 | 7 | 50.5% |
| Test Valley 010A | 1,658 | 30.5 per 1,000 | 9 | 100.0% |
| Test Valley 010B | 1,524 | 23.5 per 1,000 | 10 | 98.8% |
| Test Valley 010C | 1,547 | 49.1 per 1,000 | 7 | 98.3% |
| Test Valley 010D | 1,566 | 29.6 per 1,000 | 10 | 98.4% |
| Test Valley 010E | 1,090 | 36.7 per 1,000 | 6 | 99.6% |
| Test Valley 010F | 1,275 | 13.1 per 1,000 | 10 | 96.8% |
| Test Valley 011A | 1,683 | 75.4 per 1,000 | 8 | 86.0% |
| Test Valley 011B | 1,381 | 127.0 per 1,000 | 5 | 74.2% |
| Test Valley 011C | 1,654 | 137.0 per 1,000 | 9 | 73.9% |
| Test Valley 011D | 1,138 | 47.6 per 1,000 | 6 | 92.4% |
| Test Valley 012A | 2,392 | 34.0 per 1,000 | 9 | 25.8% |
| Test Valley 012F | 1,511 | 15.1 per 1,000 | 10 | 84.0% |
| Test Valley 013A | 1,854 | 22.7 per 1,000 | 7 | 23.8% |
| Test Valley 013B | 1,624 | 36.3 per 1,000 | 9 | 11.5% |
| Test Valley 013C | 1,557 | 44.6 per 1,000 | 7 | 13.0% |
| Test Valley 013E | 1,610 | 62.4 per 1,000 | 6 | 92.8% |
| Test Valley 013F | 1,588 | 57.2 per 1,000 | 8 | 88.3% |
| Test Valley 013G | 1,532 | 93.6 per 1,000 | 8 | 64.7% |
MPs for SO51
- Caroline NokesConservativeMP for Romsey and Southampton North98% of SO51’s postcodes
- Sir Julian LewisConservativeMP for New Forest East1.5% of SO51’s postcodes
- Dr Danny ChambersLiberal DemocratMP for Winchester0.5% of SO51’s postcodes
- John GlenConservativeMP for Salisbury0.2% of SO51’s postcodes
As of , from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.
Middle areas in SO513
Postcode sectors in SO517
Council1
Towns in SO511
Postcode districts next to SO518
Nearest rail stations2
More in the SO postcode area2
SO51 in brief
SO51 is a postcode district covering Romsey and Cupernham, in Test Valley.
About 30,251 people lived in SO51 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £410,000 in 2025 across 502 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 54.3 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in SO51 was £410,000 in 2025.
SO51 had 29,479 usual residents at the census.
In SO51, 69.4% of homes and businesses could get gigabit-capable broadband in January 2026.
In SO51, 2.1% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.