Before you quote a short form video market size in England, define what counts

What to take away

Every quoted short form video market size for England is an estimate, so ask what it counts before you use it.
A usable number names its measureadvertising spend, platform revenue, creator earnings or audience reach.
The ONS reference tables supply the audience denominator, not the money.
IAB UK's ad portfolio guidance defines which video formats sit inside industry totals.
England held about 56.5 million people at the 2021 Census, a scaling anchor rather than a revenue share.
The named sources are Ofcom's Online Nation report, IAB UK's adspend figures and platform investor results, plus commercial estimators such as Statista.

Why England has no official short form video figure

The Office for National Statistics measures internet and social media use by people. It does not publish a revenue line called short form video. No government department issues that figure for England alone.

A UK-wide number can still anchor a discussion if you label it. TikTok reports more than a billion monthly active users worldwide, a platform-level figure that says nothing about England ad spend.

Press coverage often blends measures. A headline about UK video advertising spend is not a finding about England, because the four nations differ in population and platform mix.

Before you reuse a rival's figure, read our benchmarking method for a way to check whether two datasets cover the same thing.

Where to look for named short form video figures

Four kinds of publisher cover this ground, and each measures something different:

Ofcom, the UK communications regulator, publishes Online Nation each year on how people use online video and social media.
IAB UK publishes UK digital adspend figures with PwC, broken down by format; advertising spend sits there.
Platform owners report revenue and user numbers in investor results, usually worldwide or regional rather than by nation.
Commercial estimators such as Statista and EMARKETER publish their own market estimates, each with its own definitions.

Creator earnings are rarely published as a market total, so treat any creator-earnings share as an assumption in your own workings. None of these sources issues an England-only short form video figure, so quote the source, its measure and its date next to the number.

Which formats and lengths sit inside the number

Format boundaries change the total. A source that counts in-feed video but excludes stories will look smaller than one that includes them. Length thresholds differ as well. State whether stories count, and pin the included placements to the brief.

IAB UK's overview of the new online ad portfolio sets out how the industry classifies online ad formats, including video. Check a supplier's category against it, and record the length boundary in the same note.

Vertical video is the format most teams mean. Ask three questions of any dataset: does it include vertical placements, does it count audio-on viewing, does it separate paid from organic reach?

A 15-second Reel, a 60-second in-feed ad and a three-minute YouTube Short can all be called short form by different publishers. No single length boundary is universal, so adopt one and state it: the checklist below uses under 60 seconds, vertical, paid and organic, and that boundary should hold for every dataset you compare.

If the answer is no, treat the figure as indicative. Our England market guide explains how format choice sits inside the wider UK picture, which helps when a supplier's definition is narrower than yours.

How to build an England estimate from partial data

Open the ONS Internet accesshouseholds and individuals reference tables and note the release date on the page. Read the adult internet and social media usage shares from the current release, because the ONS revises them.
Pick one platform or ad-portfolio figure from a named publisher, such as IAB UK's format breakdown or a platform investor report, and record its date so the category matches IAB UK's definitions.
Apply a short-form assumption of your own and label it as illustrative. State the period, because campaign spending clusters around seasonal peaks.
Report a range rather than a single point, and keep the working sheet with its source list.

Example: scaling a UK figure to England

Take a labelled UK-wide figure F from a named source with a date, such as an IAB UK video adspend total. Multiply by 0.84, the approximate England share of the UK population at the 2021 Census. Multiply again by your short-form assumption A.

England estimate = F x 0.84 x A. Label F, A and the result as illustrative. State the source and date for F, and say why you chose A rather than leaving it unexplained.

Scaling a UK figure to England

Weak answer

Definition: "Short form video"
Geography: "UK" used for England
Source: Blog citing a blog
Currency: Unlabelled number
Assumptions: Hidden in a footnote

Strong answer

Definition: Under 60 seconds, vertical, paid and organic
Geography: England only, or UK with the gap noted
Source: Named publisher, page and date
Currency: Pounds sterling, year stated
Assumptions: Listed beside the figure

Five checks before quoting a figure

Definitionunder 60 seconds, vertical, paid and organic
GeographyEngland only, or UK with gap noted
Sourcenamed publisher, page and date
Currencypounds sterling, year stated
Assumptionslisted next to the figure

What an England share of the UK total requires

England held about 56.5 million people at the 2021 Census, roughly 84% of the UK total. Check for a newer ONS population release before you reuse that share. Population is not revenue: a revenue share depends on platform mix, ad rates and creator location.

You can produce an England revenue share only if a platform publishes a nations split. Most do not. Where they do not, state the assumption rather than quoting a share as fact.

A large market with flat demand is a different proposition from a smaller one growing quickly. Our guide to England demand signals covers indicators to track month by month, so a headline figure can be tested against what advertisers actually do.

Common questions

Is there an official short form video market size for England?

No. The ONS publishes internet and social media usage, not video revenue. No government body issues a short form video market figure for England alone.

Can I use UK figures for an England-only claim?

Only with a stated conversion. UK totals include Scotland, Wales and Northern Ireland. Start from the population share, then adjust for platform mix and say so.

Where do I check a format definition?

Use IAB UK's online ad portfolio page and the source's own methodology note. Cite both with their dates.

How often should the figure be refreshed?

At least annually, and sooner if a major platform changes ad formats. A changed definition makes last year's number incomparable.