Most speakers stick to one region
Of the 5,077 speakers with three or more in-person events, 61% only ever spoke in one country and 70% stayed on one continent. The speaker crowds are regional; a small group of road warriors connects them.
Where speakers from each continent give their talks
Rows: the continent where a speaker gave most of their talks. Cells: share of that group's in-person events held on each continent. Darker means more.
| Speaks mostly in | Speakers | N. America | Europe | Asia | Oceania | S. America | Africa |
|---|---|---|---|---|---|---|---|
| North America | 3,682 | 92% | 6% | 1% | 1% | 0% | 0% |
| Europe | 1,159 | 17% | 79% | 3% | 1% | 0% | 0% |
| Asia | 182 | 14% | 14% | 68% | 3% | 1% | 0% |
| Oceania | 49 | 14% | 8% | 1% | 76% | 0% | — |
| South America | 5 | 7% | — | — | — | 93% | — |
Countries spoken in
Speakers with 3+ in-person events, by how many distinct countries they spoke in.
Speakers on the US circuit are the most local: 75% never spoke outside the US
Grouped by the country where each speaker gave most of their talks (15+ speakers). "One country only": every in-person event was in that country. "Crossed continents": at least one event on another continent.
| Speaks mostly in | Speakers | One country only | Crossed continents |
|---|---|---|---|
| United States | 3,777 | 75% | 23% |
| Germany | 282 | 16% | 47% |
| United Kingdom | 237 | 30% | 46% |
| Czechia | 74 | 4% | 59% |
| Australia | 73 | 37% | 62% |
| Italy | 68 | 28% | 26% |
| Belgium | 62 | 8% | 60% |
| Canada | 60 | 3% | 87% |
| France | 59 | 17% | 51% |
| Austria | 54 | 4% | 63% |
| India | 45 | 16% | 76% |
| Netherlands | 40 | 13% | 53% |
| China | 38 | 58% | 39% |
| Japan | 31 | 26% | 45% |
| Switzerland | 30 | 7% | 23% |
| Sweden | 22 | 50% | 32% |
| Lithuania | 16 | 31% | 31% |
Conferences that draw speakers from other circuits
Share of each conference's speakers (those with 3+ in-person events) who give most of their talks in a different country from the host. Conferences with 25+ such speakers.
Conferences with the most local speakers
The same measure, lowest first: almost everyone on stage mostly speaks in the host country.
How this is counted
- Who's included: speakers with at least three in-person events in a known city; online and cancelled events are left out.
- "Speaks mostly in" is the country (or continent) where the person gave most of their in-person talks in this data. It is not where they live: the index has no residence data. Joe Reis, for example, lives in Utah but spoke at DataEngBytes in Australia twelve times, so he counts under Australia.
- Coverage bias: the index has more US events than any other country, and some conferences publish full speaker lists while others list only keynotes. Treat the shares as a description of this data, not of all speakers.
- See Most miles for the individual road warriors.