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SL9

UK postcode district

Updated September 2026

District overview

Postcode units
1,414
Current units
872
Coordinate coverage
99%
Electoral wards
5

Coverage context

Countries represented
England
English regions represented
East of England, South East
Local authority codes
2
Terminated postcode units
542

Postcode sectors in SL9

Choose a sector to browse its complete postcode-unit directory.

5 sectors

Property

View property report
11,535 recorded sales at this postcode
Address Date Price
99a, Orchard Grove, Chalfont St Peter, Gerrards Cross, SL9 9ET 21 July 2026 £603,000
Clovelly, Oxford Road, Gerrards Cross, SL9 7AT 17 July 2026 £555,000
South Park Court, 3, South Park, Gerrards Cross, SL9 8HG 17 July 2026 £400,000

Schools

Across this district

View schools report
Open schools
10
Primary
5
Secondary
1

Recorded crime

Across this district

View crime report
Published events
1,071
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 371
  • Vehicle crime 125
  • Other theft 100
  • Anti social behaviour 96
  • Criminal damage and arson 94

Census 2021

Population and age profile

SL9 usual residents
22,245
Age-profile population
22,089

Age bands in SL9

Postcode district
Age 0 to 14
18%
3,973 residents
Age 15 to 24
10.1%
2,222 residents
Age 25 to 44
20.5%
4,534 residents
Age 45 to 64
29.1%
6,417 residents
Age 65 and over
22.4%
4,943 residents

Small counts are adjusted for privacy, so totals can differ slightly between Census tables.

Census Day: 21 March 2021. Sources: ONS/Nomis P001-P004 and ONS CT21_0228. Age table version 2024-04-08.

Fixed broadband coverage

The median Ofcom availability percentage across 843 current postcode units in this district. Each postcode is weighted equally, not by premises.

Superfast, 30 Mbit/s+
100%
Ultrafast, 100 Mbit/s+
100%
Ultrafast, 300 Mbit/s+
100%
Gigabit-capable
100%
Unable to receive decent fixed or FWA broadband
0%
Next Generation Access
100%
Decent broadband available from fixed wireless
0%

In this district, 795 postcode units had 100% superfast coverage, 688 postcode units had 100% gigabit-capable coverage, 0 postcode units had at least some premises without decent fixed or fixed-wireless access.

Predicted coverage, not measured speeds. Check availability for your address with a provider. Postcode-level full-fibre figures are not published in this release.

Source: Ofcom Connected Nations, coverage at January 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.

GP practices

3

in this district

  • THE ALLAN PRACTICE

    CALCOT MEDICAL CENTRE, HAMPDEN ROAD, CHALFONT ST. PETER, GERRARDS CROSS, SL9 9SA

    ODS code K82078

  • THE HALL PRACTICE

    HAMPDEN ROAD, CHALFONT ST. PETER, GERRARDS CROSS, SL9 9SX

    ODS code K82008

  • THE MISBOURNE SURGERY

    CHURCH LANE, CHALFONT ST. PETER, GERRARDS CROSS, SL9 9RR

    ODS code K82051

Evidence in context

Property market

The five-year median is £825,000 from 1,591 recorded sales in SL9. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for Buckinghamshire is £490,508 in June 2026, up 4.3% year on year.

Schools

10 open schools are in scope, including 5 primary and 1 secondary schools.

Counts describe active establishment records. They do not assess admissions, catchments or quality.

Recorded crime

1,071 published events cover 12 months, averaging 89 events per published month. The largest recorded category is Violence and sexual offences with 371 events.

The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.