The results of this survey appear to provide good estimates of the prevalence of sexual risk behaviors of the population aged 15–44 years in Nakhonsawan. The response rate for this study was very high and the refusal rates for individual questions were low. Importantly, these rates did not differ between males and females, which is significant in a society where disclosure of sexual behavior by women is discouraged [25]. The study was able to provide timely findings at a low cost. Data collection was completed in 1 month at an overall cost of only US$3688.