Mary Robinette Kowal has put up a poll to gauge fandom demographics. https://www.surveymonkey.com/s/readingsf
Please take a moment to take the survey and let your presence in fandom be noted! The poll asks several different types of demographics questions, as well as several questions about the types and formats of spec fic that you consume.
Sadly, the poll doesn't include any demographics questions about religion, or about disability (except if one is unable to work), but it does include thoughtful questions about several other demographics, and is especially conscious about gender identity and sexual orientation. Also, the poll doesn't list online spec fic magazines (pro and semi-pro) in the spec fic format options, so if you read Expanded Horizons and/or other short fiction magazines, please write that in (the format, not the specific magazines)!
Thank you and please pass along!