4,220
Households
White Brit. · 90%
Ethnicity
Christian · 52%
Religion
Low deprivation
Avg IMD
Around average · 4.0 per 1k
Crimes · Jun '26
£477,250
Median property price
439
Postcodes
Sold prices in Grendon Underwood & The Claydons
England & WalesProperty sales · Grendon Underwood & The Claydons
HM Land Registry · Grendon Underwood & The Claydons
Average price
£464,284
YoY: -3.0%
Median price: £479,500
Property type filter
Recent sale price trend
Aug '24 – Jul '26Jul '26: 6 sales · avg £472,500
X axis: MonthY axis: Avg sold price (hover shows sales count)
£586k£430k£274k
Aug '24Feb '25Aug '25Feb '26Jul '26
Contains HM Land Registry data © Crown copyright and database right. This data is licensed under the Open Government Licence v3.0.
Police Recorded Crime in Grendon Underwood & The Claydons
England & WalesCrime trends · Grendon Underwood & The Claydons
Counts are the sum of electoral wards in this area, not a 1-mile street search around a point.
data.police.uk · YoY vs same month last yearJul '24 – Jun '26
Key categories · YoY
Violent Crime
25
YoY +39%
25166
Jul '24Jan '25Jul '25Jan '26Jun '26
ASB
3
YoY —
950
Jul '24Jan '25Jul '25Jan '26Jun '26
Vehicle Crime
1
YoY —
1050
Jul '24Jan '25Jul '25Jan '26Jun '26
Burglary
2
YoY —
320
Jul '24Jan '25Jul '25Jan '26Jun '26
Criminal damage
3
YoY —
740
Jul '24Jan '25Jul '25Jan '26Jun '26
Flood risk in Grendon Underwood & The Claydons
No high or medium flood zones in the sample
9 sampled points outside Zones 2 and 3
Not in a flood zoneZone 2Zone 3
None of the sample points sit in published Zone 2 or Zone 3.
Environment Agency flood map for planning · 9-point area sample, not a check on any one property
School applications
We've matched this area to Buckinghamshire.
You apply through this education local authority even if the school is in another council area.
Apply for a primary place via BuckinghamshireApply for a secondary placeAdmissions and composite prospectus guidanceHome education — find your councilHome education guidance
GOV.UK is the official apply and admissions handoff. We do not link a generic council homepage. Per-LA composite prospectus URLs are not in the API yet.
Schools in Grendon Underwood & The Claydons
Open state schools in this area, ranked by Ofsted rating.
PrimaryStateMixed · Ages 4–11FSM 12%
RWM expected
80%
PrimaryStateMixed · Ages 4–11FSM 15%
RWM expected
79%
PrimaryStateMixed · Ages 4–11FSM 14%
RWM expected
71%
PrimaryStateMixed · Ages 4–11FSM 19%
RWM expected
41%
PrimaryStateMixed · Ages 2–11FSM 22%
RWM expected
62%
PrimaryStateMixed · Ages 3–11FSM 22%
RWM expected
47%
PrimaryStateMixed · Ages 4–11FSM 12%
RWM expected
68%
School performance data © Crown copyright. Source: Department for Education.
Amenities in Grendon Underwood & The Claydons
GPs make up most of the mapped places
63 GPs · 32 Libraries · 20 Museums · 140 in all
- GPs63
- Libraries32
- Museums20
- Hospitals12
- Universities12
- Parks1
OpenStreetMap · selected tags only · council totals; wards use the parent figure
Overview of Grendon Underwood & The Claydons
Coordinates51.9373, -1.0148
Postcodes
439
Population (Census)
10,963
Households (Census)
4,220
Recorded crime · Jun '26
Around average · 4.0 per 1k
Demographics in Grendon Underwood & The Claydons
Ethnicity
White Brit.89.9%
Other White2.9%
+ other · 7.2%
Religion
Christian52.2%
No religion38.6%
Not answered6.0%
Muslim1.2%
+ other · 2.0%
Age groups
50–6423.9%
35–4919.9%
65–7411.0%
25–3410.4%
10–157.7%
+ 6 other age groups · 27.1%
Households
Married or civil partnership couple: Dependent children19.4%
Married or civil partnership couple: No children14.8%
Other12.2%
All members 66+11.4%
Any member 66+10.4%
+ 7 other households · 31.8%
Area Deprivation (Average IMD) for Grendon Underwood & The Claydons
Area IMD profile
This area-level value is averaged from postcode IMD deciles within the area boundary.
Low deprivation
Mean decile 7.05 (1 = most deprived, 10 = least)
1 - Most deprived10 - Least deprived
Overall this area reads as Low deprivation on relative deprivation, with a mean IMD decile of 7.05 (average of postcode-level deciles in this boundary).
Postcode Districts in Grendon Underwood & The Claydons
Postcodes in Grendon Underwood & The Claydons
HP18 0AFHP18 0DGHP18 0EWHP18 0PTHP18 0QNHP18 0QUHP18 0QWHP18 0QXHP18 0RAHP18 0RBHP18 0RWHP18 0SEHP18 0SFHP18 0SHHP18 0SJHP18 0SLHP18 0SNHP18 0SPHP18 0SQHP18 0SRHP18 0SSHP18 0STHP18 0SUHP18 0SWHP18 0SXHP18 0SYHP18 0SZHP18 0TAHP18 0TDHP18 0TEHP18 0TFHP18 0TGHP18 0THHP18 0TJHP18 0TLHP18 0TNHP18 0TPHP18 0TQHP18 0TRHP18 0TSHP18 0TTHP18 0TUHP18 0TWHP18 0TXHP18 0TYHP18 0TZHP18 0UAHP18 0UBHP18 0UDHP18 0UHHP18 0UTHP18 0WAHP18 0WWHP18 0XHHP18 0XLHP18 0YHHP18 0YJHP18 0YPMK18 1TAMK18 1TNMK18 1ZNMK18 2EJMK18 2ENMK18 2EPMK18 2ERMK18 2ESMK18 2ETMK18 2EUMK18 2EXMK18 2EYMK18 2EZMK18 2FAMK18 2FBMK18 2FDMK18 2FEMK18 2FFMK18 2FGMK18 2FHMK18 2FJMK18 2FLMK18 2FNMK18 2FPMK18 2FQMK18 2FRMK18 2FSMK18 2FUMK18 2FWMK18 2FXMK18 2FYMK18 2FZMK18 2GAMK18 2GBMK18 2GDMK18 2GGMK18 2GHMK18 2GJMK18 2GLMK18 2GNMK18 2GPMK18 2GQMK18 2GRMK18 2GSMK18 2GXMK18 2GYMK18 2GZMK18 2HAMK18 2HBMK18 2HDMK18 2HEMK18 2HFMK18 2HHMK18 2HJMK18 2HNMK18 2HQMK18 2HRMK18 2JYMK18 2JZMK18 2LAMK18 2LBMK18 2LD