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03.10.2025

Spain Reddit Users — Size, Reach and Demographics

Executive summary

Spain’s Reddit audience totals 9.8–12.2 million users out of an adult population of 40.6 million, corresponding to penetration of 24.14%–30.05%. The audience is significantly male-skewed.

Total audience size

Spain’s population is 48,619,695, with 40,594,509 aged 18+ [1]. Reddit’s estimated audience is 9,800,000–12,200,000 users, placing Spain among Europe’s mid-scale markets by volume.

Penetration among 18+

Reddit reaches 24.14%–30.05% of adults in Spain. This is meaningful for targeted initiatives, though below the highest European penetration levels.

Gender distribution

  • Men: 18+ population 19,695,074; Reddit users 6,800,000–8,500,000; penetration 34.53%–43.16%.
  • Women: 18+ population 20,899,435; Reddit users 899,000–1,100,000; penetration 4.30%–5.26%.

The platform is predominantly male in Spain, limiting gender-balanced representativeness.

Unidentified traffic

A further 2,101,000–2,600,000 users are classified as unidentified. This increases reach but complicates quota-based planning.

Tactical takeaway

Treat Reddit in Spain as a mid-scale, male-leaning channel. Strongest opportunities lie in verticals like technology, gaming, and finance. For balanced campaigns, combine with complementary media.

Methodological note

Reddit does not publish age breakdowns. Penetration is calculated against the 18+ population using Eurostat [1], aligned with European advertising practice.

Sources

  1. Eurostat — population and 18+ figures for Spain.