To provide an update on blood pressure (BP) levels and hypertension correlates in urban workers in Ibadan, Nigeria, we administered a questionnaire to, and measured the BP in, 608 men and 309 women, age range 18-64 years. Systolic BP (SBP) rose in men and women after the age of 25, but the rise in diastolic BP (DBP) started earlier dropping in women only after the age of 44. SBP and DBP were higher in men than women (P Ͻ 0.001). The prevalence of hypertension was 9.3% in the population, being 10.4% in men and 7.1% in women; ageadjusted rates were 9.8% and 8.0% respectively. The prevalence of hypertension increased with age in both genders. Body mass index was correlated to SBP (r = 0.142, P = 0.022) and DBP (r = 0.149, P = 0.032) in men,