How many people are active on Prolific, and how that number changes. More people means more competition for each study place.
About 258,730 participants were active in the last 90 days at the latest hourly sample. The page refreshes every hour.
The charts show the count day by day and hour by hour for people active in the last 7, 14, 30 or 90 days. Use the chart range to see whether it is rising or falling.
We read Prolific's public eligible-participants figures every hour, using Prolific's default audience filter. The "Count people active in the last" buttons switch between the 7, 14, 30 and 90-day windows.
Registered accounts include everyone who has ever signed up. Active participants are the ones Prolific counts as eligible within the chosen window, and that is the number shown here.
Among participants active in the last 90 days, the largest countries in the latest daily snapshot (2026-11-01) are United States (109,147), United Kingdom (54,131), Canada (11,631). The audience explorer has daily history for 40 countries.
The largest age group among participants active in the last 90 days is 25-34, with 97,064 people (about 37% of the pool).
Source: Prolific's public audience figures, sampled hourly for the whole pool and once a day for countries, languages and age groups. "Active in the last N days" is how recently a person was active on Prolific. Days and daily figures use UTC. Only totals, never people. Not affiliated with Prolific.
Last updated Nov 1, 2026, 1:00 PM UTC.
Explore every country, language and age groupPeople active
258,966
Active in the last 90 days
Change in 7 days
+1.0%
+2,664 people since Oct 25, 2026
Change since first record
+4.5%
+11,177 people since Oct 15, 2026
Largest country
42%
of people live in United States
People active on Prolific in the last 90 days.
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The five largest countries among people active in the last 90 days.
Change compared with 7 days ago.
Explore every country, language and age group