Explore how perceptions of the sex ratio in Black communities' impact heterosexual Black women's confidence in negotiating condom use with sex partners and condom use at last sex. Using log-binomial regression models, we estimated the association between perception of the sex ratio and condom negotiation self-efficacy and condom use at last sex. Perception of the sex ratio among Black women surveyed was not significantly associated with condom negotiation self-efficacy and condom use at last sex. Overall, the results do not demonstrate an association between perception of the sex ratio and condom negotiation self-efficacy and condom use at last sex.