Population Statistics
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Hertfordshire · England

Knebworth population

4,155people · latest estimate

By James Burfield, SEO consultant, Bath · Page updated · GeoNames · World Gazetteer 2005 · FSA register

Knebworth has a population of 4,155, making it the 59th largest place in Hertfordshire. In 2005 the World Gazetteer recorded 4,168, a fall of 0.3% since.

4,168
in 2005
-0.3%
since 2005
#59
of 128 in Hertfordshire

The other populations of Knebworth

The same name covers more than one area, and each has its own figure.

What you meanPopulationSource
The place itself
The populated settlement, roughly the built-up core.
4,155 GeoNames
The built-up area
Continuous development, where buildings sit less than 200m apart. Drawn from where the buildings are, not where the council boundary is.
4,195 ONS Census 2021 (2021)
The place in 2005
The same settlement twenty years earlier.
4,168 World Gazetteer (2005)

Why these differ: which population figure is right? · compare with another place

The 2005 figure is from the World Gazetteer archive and may draw its boundary differently from the current source, so treat the change as indicative. Sources: method.

Knebworth in context

4 km
south-west to Codicote, the nearest larger town
175,260
people live within 10 km
#2,088
largest of 6,358 UK places
Knebworth in the UK

Distances are straight-line from the settlement's recorded coordinates. The 10 km figure sums the recorded places within that radius, so it describes how built-up the surroundings are rather than people per square kilometre.

The centre of Knebworth sits in postcode district SG3.

Food and drink on the high street

Registered premisesCount
Restaurants and cafés (11.9 per 10,000 residents)5
Takeaways and sandwich shops (7.2 per 10,000 residents)3
Pubs, bars and nightclubs (9.5 per 10,000 residents)4
Supermarkets and hypermarkets (2.4 per 10,000 residents)1

Counts are registered food premises in the Knebworth built-up area (4,195 residents at the 2021 census), from the FSA food hygiene register, extracted 17 August 2026. The boundary is drawn from where the buildings are, so these figures cover the town itself rather than the wider council area, and no total is shown because the register also lists premises nobody would call a venue: school kitchens, care homes, warehouses. Compare towns →

Shops and services

PremisesCount
Shops (all retail) (107.3 per 10,000 residents)45
Hairdressing salons (9.5 per 10,000 residents)4
Banks and building societies (2.4 per 10,000 residents)1
Leisure and sports centres (2.4 per 10,000 residents)1
Surgeries (GP, dental and similar) (7.2 per 10,000 residents)3
Libraries (2.4 per 10,000 residents)1
Car parks (2.4 per 10,000 residents)1
Licensed betting shops (2.4 per 10,000 residents)1

Shops, cafés, salons, banks, post offices and arcades are rateable premises by use on the VOA 2023 rating list — the shops figure is all general retail, charity shops included. Gambling premises come from the Gambling Commission's licensing register, which lists 6,251 betting shops nationally against the rating list's 3,838: many betting shops are rated as ordinary shops, so the licensing register is the truer count and the one used here. Categories the rating list counts badly are deliberately absent rather than wrong: petrol stations disappear into supermarket ratings, vets and museums run far under their professional registers, and pools and nurseries mostly rate inside other premises. Same built-up-area boundary as the download table on this page.

Crime, per 1,000 residents

Category (police-recorded, 12 months)Rate
Violence and sexual offences15.7
Anti-social behaviour12.2
Shoplifting6.7
Criminal damage and arson3.1
Vehicle crime4.1
Burglary3.1
Other theft1.9
All recorded offences52.7

The all-offences line is a count of records, not a safety score: it weighs every category equally, which is exactly why we publish the categories. We deliberately do not combine them into a single index.

Figures are police-recorded crime (August 2025 to July 2026) located to this built-up area, per 1,000 residents at the 2021 census. Three cautions, each of which changes how a rate should be read: recorded crime is not crime experienced, because reporting rates differ by category and by place; the denominator counts residents, so town centres and visitor towns run high per resident precisely because many people there are not residents; and a high figure can reflect more reporting as easily as more crime. Percentiles compare towns of 10,000+ residents. Greater Manchester and Gloucestershire constabularies do not publish, so their towns show a note instead of a partial figure. Compare towns →

House prices

Property typeMedian sale price
All types (63 sales)£449,950
Change on the year before
each type compared with itself, July 2024 to June 2025
+7.1%

Medians of actual registered sales in the Knebworth built-up area, July 2025 to June 2026, from HM Land Registry Price Paid data (standard open-market sales only; repossessions, part-value transfers and non-residential records excluded). A median is the middle sale, so it resists the mansion problem that skews averages. Recent sales take weeks to register, which is why the window ends before the current month. Types with fewer than 20 sales are not shown. The year-on-year change compares this window with the twelve months before it, July 2024 to June 2025, and compares each property type with itself before combining them on this year's mix. Doing it the obvious way instead, median against median, would have this town's prices swing on which kind of house happened to sell: one town in this data sold 29 detached houses one year and 9 the next, and its raw median halved without a single house changing price. The change is published only where the types compared cover most of the year's sales and the town saw 50+ of them. Compare towns →

Schools

Open establishmentsSchoolsPlacesPupilsFilled
Primary schools143039090.7%

The 2021 census counted 235 children aged 5 to 9 in the town: one state primary school for every 235 of them.

Open schools registered in the Knebworth built-up area, from the Department for Education's Get Information about Schools register, extracted 24 August 2026. Each school counts once: an independent special school appears under special schools, and the phase rows are state schools. Places are reported capacity and pupils each school's latest census return, summed only over schools reporting both, and shown only where at least 9 in 10 of a phase's schools do; state primaries across measured towns run at 89.2% of capacity, secondaries 91.3%. The children-per-school figure pairs a 2021 census count with today's register, so growth or decline since the census is not in it. No inspection grades are shown because Ofsted stopped issuing single-word overall judgements in 2024 and the register no longer carries them; current inspection reports are on Ofsted's own site. England only: the register lists Welsh schools without phase detail.

Broadband

Availability% of homes
Gigabit-capable (1,000 Mbit/s+)93.5%
Superfast (30 Mbit/s+)99.9%

Share of the 1,994 residential premises in this built-up area that the fixed network can serve at each speed, from Ofcom's Connected Nations coverage data (network state July 2025). Availability is what the line to a home can deliver if ordered, not what households actually subscribe to, and a full-fibre street where everyone bought the cheapest package shows 100% here. Percentile compares towns of 10,000+ residents. Compare towns →

Go deeper

Postcode district SG3
Wards, constituencies and the deprivation profile

Nearby in Hertfordshire

#PlacePopulation
1Bricket Wood4,600
2Wheathampstead4,326
3Cuffley4,282
4Shenley4,143
5Brookmans Park4,000
6Nash Mills3,800

All 128 places in Hertfordshire →