Journal of Urban Health

, Volume 95, Issue 1, pp 129–133 | Cite as

How Many Transgender Men Are There in San Francisco?

  • Willi McFarland
  • Erin Wilson
  • H. Fisher Raymond


The purpose of this study was to estimate the number of transgender men (transmen) adults living in San Francisco. We integrated two population size estimation methods into a community-based health survey of transmen (n = 122) in the San Francisco Bay Area in 2014–2015: the service multiplier and wisdom of the crowds. The median estimate was 806 transmen adults in San Francisco (0.11% of adults) and 4027 in the Bay Area. Considering potential biases, we believe our estimates are conservative. Knowing the denominator of persons at risk for health conditions is necessary for public health planning, surveillance, and impact evaluation.


Transgender/transsexual Epidemiology Statistics Population size estimation 



Support for this study was provided by the National Institute of Child Health and Human Development (Grant # R21 1HD071765).

Compliance with Ethical Standards

Conflict of Interest

The authors declare that they have no conflict of interest.


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Copyright information

© The New York Academy of Medicine 2017

Authors and Affiliations

  • Willi McFarland
    • 1
  • Erin Wilson
    • 1
  • H. Fisher Raymond
    • 1
  1. 1.San Francisco Department of Public HealthSan FranciscoUSA

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