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Postcode area report · 428 postcodes

AL9 postcode area guide — East Hertfordshire

House prices, crime, broadband speeds, mobile signal, schools and demographics for the AL9 postcode district in East Hertfordshire — every official dataset on one page.

The AL9 postcode district serves East Hertfordshire, England, with 428 postcodes currently in use. Around 150,155 people live across the wider East Hertfordshire district. Over the last year the typical (median) sold price in AL9 has been £580,000.

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Where is AL9?

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Broadband & internet speeds in AL9

Strong coverage

Superfast (30Mb+)

87.5%

Ultrafast (300Mb+)

61.2%

Gigabit-capable

59.6%

Below USO (10Mb)

0.1%

Broadband availability in the AL9 postcode district (East Hertfordshire) is Strong — superfast is near-universal and gigabit is rolling out. Across the 428 postcodes Ofcom measures in AL9, superfast broadband (30 Mbit/s or faster) reaches 87.5% of premises and gigabit-capable lines are available to 59.6%.

Around 0.1% of premises in AL9 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.

Sample postcodes in AL9

PostcodeSuperfastGigabit
AL9 5AB100%0%
AL9 5AD100%100%
AL9 5AE100%25%
AL9 5AF100%100%
AL9 5AH100%0%
AL9 5AJ100%0%
AL9 5AL100%0%
AL9 5AN100%0%
AL9 5AP100%0%
AL9 5AR100%44.4%

Run a speed test to see what you're actually getting, or check your exact postcode.

Mobile signal around East Hertfordshire

Ofcom's coverage model for the wider East Hertfordshire district (71,670 premises):

4G indoors — all networks

87.2%

4G outdoors — all networks

98.8%

5G outdoors — all networks

27.7%

Voice indoors — all networks

90.2%

Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.

Crime in AL9

Police recorded 6 incidents within about a mile of the centre of AL9 in May 2026 (latest published street-level data). The breakdown:

CategoryIncidentsShare
Violence & sexual offences233.3%
Anti-social behaviour116.7%
Criminal damage & arson116.7%
Vehicle crime116.7%
Other crime116.7%

Raw counts favour busy town centres — a high street with shops and nightlife records more incidents than a residential cul-de-sac. Source: police.uk open data (point sample around the district centroid).

House prices in AL9

Based on 99 sales registered with HM Land Registry in the last 12 months, the median sold price in AL9 is £580,000, up 0.9% on the previous year (£575,000).

Detached

£955,000

25 sales

Semi-detached

£665,950

28 sales

Terraced

£472,500

23 sales

Flat / maisonette

£255,000

18 sales

Latest recorded sales in AL9

DatePriceTypeStreetPostcode
15 May 2026£525,000Semi-detachedPooleys LaneAL9 7LF
14 May 2026£468,000Semi-detachedPuttocks DriveAL9 7LW
12 May 2026£1,175,000Semi-detachedHome Farm RoadAL9 7TP
29 Apr 2026£650,000TerracedBluebridge RoadAL9 7UN
24 Apr 2026£745,000Semi-detachedOaklands AvenueAL9 7UJ
24 Apr 2026£937,500Semi-detachedWestland DriveAL9 7UQ
24 Apr 2026£88,000FlatNorthcottsAL9 5ES
17 Apr 2026£540,000TerracedMeadow CloseAL9 7NZ
17 Apr 2026£750,000Semi-detachedBluebridge RoadAL9 7UW
17 Apr 2026£220,000FlatNorth DriveAL9 5EG

Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.

Who lives here? East Hertfordshire demographics

Census 2021 figures for the wider East Hertfordshire district (150,155 residents, 62,023 households):

Age profile
Under 1519.3%
15–2921.1%
30–4420.5%
45–6420.9%
65+18.2%
Housing tenure
Owner-occupied69.4%
Private rented16.1%
Social rented11.4%

Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.

Schools in and around AL9

SchoolPhaseAgesPupilsPostcode
Chancellor's SchoolSecondary11–181,241AL9 7BN
Queenswood SchoolNot applicable11–18426AL9 6NS
Brookmans Park Primary SchoolPrimary4–11345AL9 7QY
The Ryde SchoolPrimary4–11191AL9 5DR
St Mary's Church of England VA Primary School, Welham GreenPrimary4–11137AL9 7NE
Essendon CofE (VC) Primary SchoolPrimary3–1177AL9 6HD
Rhodes Wood Hospital SchoolNot applicable7–1935AL9 6NN

Source: DfE Get Information about Schools (England & Wales). Check Ofsted report cards for inspection detail — headline one-word grades were retired in 2024.

Food hygiene ratings in AL9

82 rated food businesses operate in AL9. 54 hold the top rating of 5, 13 are rated 4, and 1 are rated 2 or below.

Among the 5-rated: Aroma Lounge, B&M Retail Ltd, BaxterStory Royal Vet College Hawkshead, Bengal Paradise, Bon Appetit.

Source: Food Standards Agency, food hygiene ratings (FHRS) open data.

Energy performance (EPC) in AL9

From a sample of 116 Energy Performance Certificates across 11 AL9 postcodes, the most common rating is band D (average band D). 47% of sampled homes are rated C or better.

Band B

7%

Band C

40%

Band D

41%

Band E

7%

Band F

6%

Source: MHCLG Energy Performance of Buildings Data (England & Wales), sampled at postcode level and refreshed monthly. Individual certificates are on each postcode’s page.

Phone area codes for East Hertfordshire

Landlines around AL9 typically use:

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What's it like living in AL9?

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Moving to AL9? Sort your connectivity first

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Postcodes in AL9

Neighbouring districts

All St Albans (AL) postcode districts ›

Frequently asked questions

Where is the AL9 postcode?
AL9 covers East Hertfordshire in England. It contains 428 live postcodes. Scroll to the map and postcode list on this page to narrow down an exact spot.
How much do houses cost in AL9?
The median sold price in AL9 over the last 12 months is £580,000, based on 99 HM Land Registry recorded sales. See the house-price section above for medians by property type and the most recent sales.
Is AL9 a safe area?
Police recorded 6 incidents within a mile of the centre of AL9 in May 2026, with Violence & sexual offences the most common category. Compare the breakdown above and check street-level detail on police.uk before drawing conclusions — a busy high street inflates raw counts.
What broadband can I get in AL9?
Superfast broadband reaches 87.5% of premises in AL9 and gigabit-capable services 59.6%, per Ofcom Connected Nations. Enter a full postcode in the checker on this page for address-level availability.
Who lives in AL9?
In the wider East Hertfordshire district, 69% of households own their home, 16% rent privately and 11% are in social housing (Census 2021). The age profile and household counts are in the demographics section above.
How energy efficient are homes in AL9?
Across a sample of 116 Energy Performance Certificates in AL9, the most common rating is band D and the average is band D. 54 of the sampled homes are rated C or better. See the EPC section above for the full band breakdown.

Sources: HM Land Registry Price Paid Data, police.uk street-level crime, Ofcom Connected Nations, ONS Census 2021, DfE Get Information about Schools, Food Standards Agency FHRS — all © Crown copyright, licensed under the Open Government Licence v3.0. Figures are area aggregates; individual addresses vary. Energy performance (EPC) data will be added when our Open Data Communities registration is approved.

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