Objective; The prevalence of hypertension in healthy school children aged   10 to 15 years in Kurnool, Study of The relation blood pressure with variables –sex, Weight, height, socioeconomic status and family history.                                    Method– Cross– sectional study                           Setting:    Kurnool urban area (school based study).              Participants:   Apparently healthy school children 10– 15 yrs.              Outcome Measures; prevalence of Hypertension            Results:  Out of 1000 (100%) children included in the study, 55.7% (557) are Males and 44.3 % (443) children are females. Most of the study subjects were aged 15 years followed by 14 and 13 years and least no. Were in 10, 12, 11 years in the ascending order. 87.6 % of children are in the normal range of blood pressure recordings, 6.8 % are pre–hypertensive and 5.6 % are hypertensive.   Spurt in blood pressures was observed between 12 – 14 years in the study. 5.74 % of males are Hypertensive and 5.40% of females are Hypertensive. This difference is statistically insignificant.  Prevalence of Systolic Hypertension (3.10%) is more than diastolic hypertension (2.50%). The difference is not significant statistically. p value = 0.21 chi square = 1.54                            23.80% of obese children are hypertensive whereas only 5.90% overweight children are hypertensive. The difference is statistically significant. P – Value 0.044 and chi square = 6.21.       41.86% of hypertensive children have a family history of hypertension and 15.78 % of normal children have a positive family history. The data is statistically significant. p value is < 0.0001.     In the study population, 36.1% (20) of hypertensive children   (56) belonged to lower socioeconomic class, 33.60% (19) belonged to middle socioeconomic class and 30.30% (17) belonged to upper class according to modified kuppuswamy scale but the difference is not statistically significant. P value is 0.60, chi square is 0.99.   Conclusion:  Prevalence of hypertension is slightly higher in boys but the observation is statistically insignificant. Anthropometric variables like height, weight, body mass index, presence of family history showed positive correlation with systolic as well as diastolic blood pressure. Socioeconomic status and parental education have no effect on paediatric hypertension in the current study.