Photo: Chris Whippet · CC BY-SA 2.0How long people live in Seal: 80.9 for men and 83.1 for women
For 2019 to 2023, England’s figures are 79.1 and 83.0. Seal grades B for health: life expectancy, healthy life expectancy, early deaths, hospital admissions, child obesity and Census health, each adjusted for age.
What stands out about health in Seal
A&E waits run longer than England’s
King's College Hospital NHS Foundation Trust, which runs the A&E at Princess Royal University Hospital, saw 56% of major-A&E patients within four hours in the 12 months to September 2026, against 61% across England: 76th of 117 trusts. 21% of patients admitted through its A&Es waited more than 12 hours from the decision to admit, against 13% in England. A&E ↓
Fewer of Seal’s children are obese
13% of Year 6 children (aged 10 to 11) were measured as obese over the last three school years, against 22.3% across England; fewer than in 89% of UK towns. Health Grade ↓
Written from the OHID, NHS England and GP Patient Survey figures on this page. Life expectancy covers 2019 to 2023; neighbourhoods are ONS middle-layer areas of about 8,000 people.
Seal grades B for health
Healthier than 61% of UK towns, on age-adjusted measures.
What holds the grade back: women’s life expectancy and deaths under 75 (better than 36% and 43% of UK towns). What lifts it: child obesity (89%) and Census bad health (72%). Among the 1,215 UK towns of 1,000 to 2,000 people, Seal’s Health Grade is the 700th highest.
Each measure is ranked against every UK town of 1,000 or more, the ranks are averaged, and the average is ranked again. Every measure allows for the town’s ages: life expectancy is worked out from the death rate at each age, so it doesn’t depend on how old the town’s residents are; deaths and admissions are counted against what England’s rates would give a town with these ages, and the Census answers against England and Wales’s rates by single year of age, so a seaside town of retired people isn’t marked down for being old.
King's College Hospital saw 56% of major-A&E patients within four hours
Type 1 (major) A&E attendances seen, admitted or discharged within four hours of arrival, by month. NHS England publishes it by trust, not hospital: King's College Hospital NHS Foundation Trust runs the A&E at Princess Royal University Hospital, the nearest to Seal (8.6 mi).
The share seen within four hours slipped from an average of 57% in April 2025 to September 2025 to 55% in the latest six months; England’s was 62%. Long waits for a bed are commoner than at 77% of trusts: 8,992 patients in 12 months, 21% of emergency admissions through A&E. CQC’s latest ratings for Princess Royal University Hospital: urgent and emergency services requires improvement (2021), the hospital overall requires improvement (2026).
London trusts
Hospitals within 25 miles
| Distance | Hospital | CQC overall | Urgent & emergency |
|---|---|---|---|
| 1.1 mi | Sevenoaks Hospital and Urgent Treatment Centre Sevenoaks · Maidstone and Tunbridge Wells NHS Trust | Not rated | — |
| 7.3 mi | Orpington Hospital Orpington · King's College Hospital NHS Foundation Trust | Requires improvement2022 | — |
| 8.2 mi | Tonbridge Cottage Hospital Tonbridge · Kent Community Health NHS Foundation Trust | Not rated | — |
| 8.6 mi | Princess Royal University Hospital A&E Orpington · King's College Hospital NHS Foundation Trust | Requires improvement2026 | Requires improvement2021 |
| 10 mi | Darent Valley Hospital A&E Dartford · Dartford and Gravesham NHS Trust | Good2022 | Good2022 |
| 10 mi | Guy's Cancer Queen Mary's Hospital Sidcup · Guy's and St Thomas' NHS Foundation Trust | Not rated | — |
| 10 mi | Queen Mary's Hospital Sidcup · Lewisham and Greenwich NHS Trust | Not rated | — |
| 10 mi | Queen Mary's Hospital Sidcup · Dartford and Gravesham NHS Trust | Good2018 | — |
NHS acute hospitals registered with the Care Quality Commission (care directory, 01 October 2026). “A&E” marks a major (type 1) emergency department, open 24 hours and led by consultants, in NHS England’s Emergency Care Data Set; a hospital without the mark may still have a minor injury unit or urgent treatment centre. Ratings run Outstanding, Good, Requires improvement, Inadequate; the year is when each was published. Distances are straight lines from the town centre.
Care in and near Seal
The nearest A&E, GP practices, and where to go when it’s urgent but not an emergency. In an emergency, call 999.
No GP practice in Seal itself
The nearest practices.
| Practice | Distance | CQC rating |
|---|---|---|
| St John's Medical Practice Sevenoaks TN13 3NT | 1.2 mi | Requires improvement2022 |
| Otford Medical Practice Sevenoaks TN14 5RB | 1.9 mi | Good2024 |
| Town Medical Centre Sevenoaks TN13 1AR | 1.9 mi | Good2017 |
| South Park Medical Practice Sevenoaks TN13 1ED | 2 mi | Not rated |
| South Park Medical Practice Sevenoaks TN13 1ED | 2 mi | Good2016 |
| Amherst Medical Practice Sevenoaks TN13 2RP | 3 mi | Good2025 |
GP practices registered with the Care Quality Commission, placed in the town by their postcode. A practice counts as in Seal when its surgery is inside the built-up area; branch surgeries are part of their main practice. You can register with any practice whose area covers your address.
84% of adults in the Kent and Medway area who tried got an NHS dental appointment
Adults who tried to get an NHS dental appointment for themselves in the last two years, and got one. GP Patient Survey 2026, by integrated care system (the NHS area that plans dentistry for Seal).
Across England 82% of those who tried got an appointment. Of Kent and Medway patients who did, 75% rated the experience good (England 74%). NHS practices taking new patients are listed on the NHS website’s Find a dentist; for urgent dental pain, call NHS 111.
The survey asks GP patients about dentistry, so results are published for health areas, not towns or practices.
82% of residents say their health is good or very good
Census 2021, all residents, as answered (not adjusted for age).
Adjusted for age, 68 report bad health for every 100 expected, fewer than the national rate.
Show as a table
| Census 2021 | Seal | Kent | England |
|---|---|---|---|
| Good or very good health | 82% | 82% | 82% |
| Fair health | 14% | 13% | 13% |
| Bad or very bad health | 4.1% | 5.1% | 5.2% |
| Disabled under the Equality Act | 18% | 18% | 17% |
| Day-to-day activities limited a lot | 6% | 7.4% | 7.4% |
Kent and England: all residents of their built-up areas (towns and cities), from the same Census 2021 output areas.
Seal’s Health Grade is 700th of 1,215 UK towns of 1,000 to 2,000
Ordered by Health Grade: the top three, the towns either side of Seal, and others in Kent. Life expectancy for men / women; deaths under 75 per 100 expected.
| # | Town | People | Life expectancy | Deaths under 75 | Health |
|---|---|---|---|---|---|
| 1 | East Keswick West Yorkshire | 1,145 | 86.0 / 88.4 | 45 | A+ |
| 2 | Bardsey West Yorkshire | 1,819 | 86.0 / 88.4 | 45 | A+ |
| 3 | Upper Basildon Berkshire | 1,074 | 86.0 / 87.7 | 51 | A+ |
| … | |||||
| 48 | Leigh Kent | 1,104 | 83.4 / 87.5 | 57 | A+ |
| … | |||||
| 86 | Horsmonden Kent | 1,580 | 84.3 / 86.6 | 63 | A+ |
| … | |||||
| 99 | Sundridge Kent | 1,190 | 83.1 / 86.8 | 61 | A |
| … | |||||
| 698 | North Elmham Norfolk | 1,172 | 81.0 / 84.9 | 77 | B |
| 699 | Alveley Shropshire | 1,505 | 80.3 / 83.8 | 77 | B |
| 700 | Seal Kent | 1,616 | 80.9 / 83.1 | 85 | B |
| 701 | Marlpit Hill Kent | 1,271 | 80.5 / 83.9 | 94 | B |
| 702 | Brinklow Warwickshire | 1,121 | 80.5 / 83.5 | 80 | B |
| … | |||||
| 1215 | Toll Bar South Yorkshire | 1,213 | 73.1 / 77.6 | 179 | D− |
Health letters rank against every UK town of 1,000 or more; the order here is context only. Welsh towns are graded on life expectancy, healthy life expectancy and the two Census measures: OHID’s early-death, admissions and child-obesity figures cover England.
Health in the places around Seal
Life expectancy for men / women, and the nearest A&E. Tap a town for its health page.
| Town | People | Life expectancy | Nearest A&E | Health |
|---|---|---|---|---|
| Seal | 1,616 | 80.9 / 83.1 | 8.6 mi | B |
| Otford and Kemsing | 7,332 | 84.5 / 88.7 | 7.2 mi | A+ |
| Sevenoaks | 26,474 | 82.5 / 84.3 | 8 mi | A |
| Dunton Green | 3,241 | 83.3 / 85.3 | 7 mi | A |
| Ightham | 2,037 | 82.1 / 85.4 | 8.7 mi | A |
| Borough Green | 4,712 | 82.1 / 85.4 | 7.6 mi | A− |
| Wrotham | 1,961 | 82.1 / 85.4 | 8 mi | A− |
| West Kingsdown | 4,306 | 80.6 / 84.0 | 6.1 mi | B |
Otford and Kemsing, 1.5 miles away, has men’s life expectancy of 84.5, 3.6 years longer than Seal’s.
What this data can and can’t tell you
- A&E figures are for the trust. NHS England publishes four-hour waits by trust, not hospital, so King's College Hospital NHS Foundation Trust’s figures cover every major A&E it runs. They count type 1 (major) departments; minor injury units and urgent treatment centres are left out, which is why they sit below the all-types figure NHS England headlines (75% for England).
- Adjusted for age. A ratio of 100 means as many deaths, admissions or reports of bad health as England’s rates (England and Wales’s for the Census) would give a town with these ages; 120 means a fifth more.
- Small areas, summed to the town. OHID publishes these figures for middle-layer areas of about 8,000 people; the town’s figure averages the areas it covers, weighted by how many of their residents live in it, so a village shares its area’s figure with the countryside around it.
- Different years. Life expectancy and deaths cover 2019 to 2023; emergency admissions 2016/17 to 2020/21 (the latest OHID publishes for small areas, including the pandemic dip); child obesity the three school years to 2024/25; A&E the 12 months to September 2026; the GP Patient Survey early 2026; CQC ratings were published on different dates, shown in each row.
- Distances are straight lines. Miles are measured from the town’s centre to each site; the road is longer. For an emergency, call 999; for urgent advice, call NHS 111.
Questions about health in Seal
How healthy is Seal?
Seal earns a B for health, healthier than 61% of UK towns on measures adjusted for age, and 700th of 1,215 UK towns of its size. Life expectancy is 80.9 for men and 83.1 for women (England 79.1 and 83.0), and there are 85 deaths under 75 for every 100 expected.
How long are A&E waits at Princess Royal University Hospital?
NHS England publishes waits for the trust, King's College Hospital NHS Foundation Trust. In the 12 months to September 2026 it saw 56% of major-A&E patients within four hours, against 61% across England; in September 2026 the figure was 52%. In an emergency call 999; for urgent advice call NHS 111.
Can I get an NHS dentist in Seal?
In the 2026 GP Patient Survey, 84% of adults in the Kent and Medway area who tried to get an NHS dental appointment in the last two years got one, against 82% across England. Practices taking new NHS patients are listed on the NHS website’s Find a dentist service.
How many GP practices are there in Seal?
There’s no GP surgery inside Seal itself; the nearest is about 1.2 mi away.
What is the life expectancy in Seal?
80.9 years for men and 83.1 for women, on OHID’s figures for 2019 to 2023. Men can expect 69.0 of those years and women 69.6 in good health.
CQC ratings © Care Quality Commission.
Sources: OHID Fingertips small-area indicators (life expectancy and deaths 2019–23, emergency admissions 2016/17–2020/21, NCMP 2022/23–2024/25); House of Commons Library MSOA names · ONS health state life expectancy for small areas (MSOAs), England and Wales, 2019 to 2023 (healthy life expectancy) · ONS Census 2021 general health and disability, adjusted for age · Care Quality Commission care directory and latest ratings, 01 October 2026 · NHS Organisation Data Service · GP Patient Survey 2026 (NHS England, run by Ipsos) · NHS England, A&E Attendances and Emergency Admissions (monthly, by trust) and Emergency Care Data Set activity by site, June–September 2026 (type 1 A&Es) · MHCLG English Indices of Deprivation 2025 · TownRatings grades: our own summary of the data, ranked against UK towns only. All under the Open Government Licence v3.0.
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.