Broadband in Sefton
Coverage, speeds and prices for 6,456 postcodes across 15 postcode districts. Real data from Ofcom, Land Registry and Police.uk.
Superfast
98%
Full fibre
78%
Gigabit
80%
Postcodes
6,456
Sefton covers 6,456 postcodes across 15 outward codes on the broadband map. Its standout figure is full fibre availability of 78%, well clear of the UK average of around 69% of premises passed.
Browse Sefton by postcode district
Sefton covers 15 postcode districts with 6,456 postcodes in total. Coverage varies district by district, so pick yours for a full breakdown.
L10
131 postcodes
99% superfast
97% full fibre
L20
856 postcodes
97% superfast
86% full fibre
L21
567 postcodes
99% superfast
97% full fibre
L22
273 postcodes
99% superfast
96% full fibre
L23
676 postcodes
99% superfast
97% full fibre
L29
21 postcodes
92% superfast
92% full fibre
L30
446 postcodes
99% superfast
91% full fibre
L31
744 postcodes
99% superfast
96% full fibre
L37
660 postcodes
98% superfast
91% full fibre
L38
99 postcodes
90% superfast
59% full fibre
L70
1 postcodes
100% superfast
0% full fibre
L75
11 postcodes
82% superfast
0% full fibre
L9
28 postcodes
95% superfast
78% full fibre
PR8
1,146 postcodes
97% superfast
0% full fibre
PR9
797 postcodes
98% superfast
0% full fibre
Broadband speeds in Sefton
Share of premises by the fastest download speed available, averaged across every Sefton postcode.
Superfast speeds are available at 98% of Sefton postcodes, a shade above the national norm of roughly 97%. Gigabit-capable connections reach 79.5%. Full fibre, at 78%, is the figure that separates the borough from much of the country, where the comparable average sits nearer 69% of premises passed. That margin matters for anyone comparing areas before a move.
Coverage is not spread evenly. L10 leads, with fibre recorded at 97.4% of its postcodes, and L21 and L23 follow at around 97%. L70, L75 and PR8 show no recorded full fibre in this dataset. Substandard speeds are vanishing: barely 0.1% of postcodes remain below 10 Mbps. Nearly all premises face a choice between speed options rather than searching for adequate connectivity.
Source: Ofcom Connected Nations. Percentages are averages of postcode-level availability, so rows may not sum to exactly 100%.
Best deals
Compare broadband deals in Sefton
Deals are priced per address. Enter your full postcode to see every package available where you live.
Free comparison. Opens our deals partner in a new tab.
Sefton at a glance
The value story here rests on the speed mix rather than prices. A household can plan around fibre being the default rather than the exception, so multi-room streaming, video calls and large uploads are realistic asks at most addresses. The caution is the trio of outward codes with no recorded fibre. An address in L70, L75 or PR8 may still connect well, but the borough-wide 78% figure cannot be assumed there.
Crime per month
1
Average recorded crimes per local statistical area
Remote worker score
85/100
Connectivity and amenities for home working
Family score
71/100
Schools, safety and family amenities
Sefton broadband FAQs
What share of Sefton postcodes can get full fibre?
78%, based on the latest coverage data for the borough's 6,456 postcodes. That is comfortably above the UK average of around 69%.
Which Sefton outward codes have the strongest fibre coverage?
L10 tops the table with fibre at 97.4% of its postcodes. L21 and L23 are close behind at about 97%.
Are slow connections still common in Sefton?
No. Only 0.1% of postcodes fall below 10 Mbps, so sub-superfast lines are now rare here.
Can I get a gigabit connection in Sefton?
Gigabit-capable broadband is recorded at 79.5% of postcodes. Roughly four postcodes in five have at least one such option.
Does every part of Sefton have full fibre?
No. L70, L75 and PR8 show no recorded full fibre, so anyone at an address there should look up their exact postcode before assuming fibre is on offer.
Check your exact postcode
Every postcode in Sefton has its own page with broadband speeds, house prices, school ratings and crime stats. You can also compare providers for your address.
Data sources: Broadband data from Ofcom Connected Nations 2025 · House prices from HM Land Registry · Crime from Police.uk · See all data sources