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We estimate that 21 million of these people are professional developers and university-level students.
The majority of our survey respondents this year were people who said they are professional developers or who code sometimes as part of their work, or are students preparing for such a career.
Despite our survey’s broad reach and capacity for informing valuable conclusions, we acknowledge that our results don’t represent everyone in the developer community evenly.
About 4% of respondents code as a hobby but not as a profession, and just under 2% of respondents used to be professional developers but no longer are.
See our Methodology section for details on how developers around the world accessed our survey.
For example, in our survey this year, 11% of US respondents identify as women, but data from the US Bureau of Labor Statistics estimates that women's participation in the software developer workforce is about twice that, more like 20%.
We can use survey weighting to adjust for the mismatch between our survey sample and the population of developers.