Objectives: Despite the high prevalence rates of food insecurity and obesity among children of Hispanic immigrants, there has been a dearth of research on the direct relationship between food insecurity and obesity among this population. Further, prior research examining the association between food insecurity and body composition among children of Hispanic immigrants have not considered adiposity, specifically percent body fat (%BF) and waist circumference (WC), as outcome measurements. The following study contributes to the literature by examining the association between food insecurity and two adiposity measurements, %BF and WC, along with body mass index (BMI) among a sample of young Hispanic immigrant children. Methods: Cross-sectional survey and direct body composition assessments were collected among 49 low-income Hispanic immigrant children (mean age = 5.5. years) and their 44 mothers (mean age = 35.5 years) from two Houston-area community centers. Data were collected on household food security status using the 18-item USDA scale, demographic characteristics, and measured height, weight, body fat percentage, and waist circumference from children and mothers. Results: Sixty-five percent of children resided in a food insecure household, 31% of the children were obese in terms of %BF, and 24% were obese in terms of BMI. A greater percentage of food secure children were classified as obese in terms of %BF, BMI, and had an elevated waist circumference. A direct relationship was not observed between food insecurity and elevated waist circumference (OR = 0.08, p = 0.10); however, children living in food insecure households had 89% lower odds of having an elevated %BF (OR = 0.11, p < 0.01), 93% lower odds of being obese (OR = 0.07, p < 0.05), and 87% lower odds of being overweight/obese (OR = 0.13, p < 0.05). Conclusions: In young children of Hispanic immigrants, food insecurity was related to healthier levels of %BF and BMI. Studies that track adiposity and weight status of children of Hispanic immigrants in relation to food insecurity over time are needed to further understand why food insecurity and obesity co-exist for some groups but not others.