Hogwarts School of Witchcraft and Wizardry Castle #13600792

members (measured 3 Nov 2026, 05:39 UTC)

3 January 2022

created (per Roblox API)

10 August 2026

first measured by this register

Game fan groupsENHarry PotterRoleplayQuizzes

Description

This is a place where Harry Potter fans come and get sorted into their house do quizzes #### new people and do more!

Written by the group; not a statement by this register.

Membership history

Growth

Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
19 Sept 2026, 07:35	13	first reading

Ownership

Owned by tehe (@Harper97J) as measured.

Groups seen changing owner — the largest ever handed over and the most recent — are on the ownership transfers board.

Members we’ve seen

tehe (@Harper97J) — Headmistress (rank 255)

Lilly (@Lillysoko2011) — Huffelpuff (rank 254)

josey (@Seni0rCarr0ts) — Huffelpuff Prefect’s (rank 2)

A sample — only members this register has independently measured, highest rank first. Not the full roster.

Rank structure

Headmistress0

Gryffindor0

Huffelpuff0

Ravenclaw0

Expelled0

Sorting0

Slytherin0

Teachers0

Gryffindor Prefect’s2

Huffelpuff Prefect’s0

Ravenclaw Prefect’s0

Slytherin Prefect’s0

Head boy and Head girl0

Member13

Guest0

Roles and per-rank member counts as Roblox reports them (rank 0 = guest … 255 = owner).

Open data

Download this group’s measured record — free to reuse with attribution: membership history (CSV) · full record (JSON)

Each file carries its licence and retrieval time inside it, and is generated from the same measurements shown above.