To create normative data for visceral adipose tissue (VAT) derived from the GE Lunar iDXA specific to sex and age cohorts for adults in the United States (US). A cross-sectional analysis of 649 adults were evaluated [Mean±SD (Range): Males: n=351; Age=33·2±17·4years (18-75years); Body mass index (BMI)=26·5±5·4kg·m-2 (17·5-44·2kg·m-2 ); Females: n=298; Age=28·5±14·3years (18·0-75·0years); BMI=25·8±6·9kg·m-2 (17·9-54·8kg·m-2 )]. From a total body dual-energy X-ray absorptiometry (DXA) scan, VAT mass (kg) and volume (cm3 ) were quantified from the software-delineated region-of-interest. The relationship between VAT and age was evaluated using regression analysis. Separate VAT percentiles were stratified by age range (18-19years; 20-24years; 25-50years; 50+years) for males and females. In both males and females, there was a positive, non-linear relationship between VAT and age (R2 =0·47-0·49; P<0·0001). In males, the 50th percentile for VAT mass and volume, stratified by age was: 18-19years (0·18kg; 185·67cm3 ), 20-24years (0·25kg; 261·21cm3 ), 25-49years (0·71kg; 746·27cm3 ) and 50+years (1·62kg; 1708·36cm3 ). In females, the 50th percentile for VAT mass and volume, stratified by age was: 18-19years (0·04kg; 44·90cm3 ), 20-24years (0·06kg; 59·57cm3 ), 25-49years (0·55kg; 579·28cm3 ) and 50+years (1·21kg; 1284·59cm3 ). These normative values provide a reference for VAT mass and volume in US adults 18-75years of age obtained using the GE Lunar iDXA. Measures of VAT provide important information about metabolic and cardiovascular health risk beyond that of BMI and per cent body fat.