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SL9 postcode area · Buckinghamshire

The SL9 postcode district spans 7 neighbourhoods (MSOAs) in Buckinghamshire, Three Rivers. Area Scores range from 52 to 97 across them. Every full SL9 postcode falls within one of the neighbourhoods below.

In summary

There is a sharp split within the SL9 district: Chalfont St Giles, Seer Green & Jordans scores 98 out of 100 (#163 of 6,856 nationally) while Mill End, Heronsgate & Maple Cross sits at 52 — neighbours on the map, 45 points apart on the index. 5 of the 7 rank in the least-deprived third of England; none falls in the most-deprived third. House prices stretch as far as the scores do: medians run from £465,000 in Mill End, Heronsgate & Maple Cross to £1,260,000 in Gerrards Cross — a 2.7× gap within the SL9 district. Note that the district straddles 2 local authorities — Buckinghamshire and Three Rivers — so its neighbourhoods answer to different councils.

Living here

Typical net household income£55,289a year, weighted avg of neighbourhood estimates
Recorded crime52per 1,000 residents, 12m
Median age (est.)45
Owner-occupied75%

Income: ONS model-based estimates (FYE 2023). Crime: data.police.uk, recorded incidents. Age & tenure: Census 2021. All OGL v3.0 — methodology.

House prices in the SL9 district

£860,000median home sold over the past year · +7.6% over 5 years · +4.9% over the year · 297 sales
Detached£1,074,430
Semi-detached£735,000
Terraced£685,000
Flat£455,000
Buckinghamshire£460,000
South East£385,000
England£300,000
Annual median price, all homes. Small samples can be volatile.
Area Score:more deprivedless deprivedTap a neighbourhood to open it →
NeighbourhoodNat. rankArea scoreMedian price
Chalfont St Giles, Seer Green & JordansBuckinghamshire 16398 £790,000
Chalfont St Peter WestBuckinghamshire 25996 £805,000
Gerrards CrossBuckinghamshire 26596 £1,260,000
Chalfont Common & St Peter EastBuckinghamshire 27296 £775,000
Farnham & HedgerleyBuckinghamshire 97886 £700,000
DenhamBuckinghamshire 2,54163 £546,500
Mill End, Heronsgate & Maple CrossThree Rivers 3,27552 £465,000

People living in SL9 Census 2021

Residents51,155
Median age (est.)45
Density614per km²
No qualifications12%
Degree or above46%
No car or van10%

Age

0–14 18%15–24 10%25–44 22%45–64 29%65+ 22%

Tenure

Own outright: 39%Mortgage/shared: 36%Social rent: 12%Private rent: 13%
Own outright 39%Mortgage/shared 36%Social rent 12%Private rent 13%

Households

One person: 26%Couple, no children: 15%Couple with children: 32%Lone parent: 9%Other: 18%
One person 26%Couple, no children 15%Couple with children 32%Lone parent 9%Other 18%

Work (top occupations)

Professional 25% · Managers & directors 24% · Associate professional 15%

All occupation groups
Professional25%
Managers & directors24%
Associate professional15%
Administrative9%
Skilled trades8%
Caring & leisure6%
Elementary5%
Sales & customer service5%
Process & plant3%

Ethnic group

White: 79%Asian: 14%Black: 1%Mixed: 4%Other: 2%
White 79%Asian 14%Black 1%Mixed 4%Other 2%

Religion & identity

Christian 51% · No religion 29% · Sikh 5%

Born outside the UK: 17%

Census 2021 (ONS), Crown copyright, OGL v3.0. Shares are of each question's own respondents (e.g. education is % of residents aged 16+). Figures date from March 2021 and change slowly between censuses.

Towns & places in SL9

Places whose neighbourhoods overlap the SL9 district.

Chalfont St

Nearby areas

Postcode districts around SL9.

HP9 UB9 WD3 HP8 SL0 HP7 UB8 SL2

A postcode district overlaps several neighbourhoods, so per-neighbourhood figures are shown alongside the district-wide medians — neighbouring areas can differ a lot. Neighbourhood (MSOA) boundaries contain ONS data © Crown copyright and database right 2025, Open Government Licence v3.0.