Particle size and chemical properties are important in interpretations for many soils. In this study, statistical models developed from field textures, or apparent textures, and simple chemical tests predict the commonly measured chemical properties of Andisols. To develop these models, we summarized chemical data for Andisols of the conterminous USA and Alaska by total data set (>300 samples available for some analyses), by field texture class (silt loam and sandy loam are the most common in this data set), and by soil horizon within field texture class. In all the texture classes included, except for loamy sands, B horizons average more allophane (calculated as 8.3 × Si o extracted by acid oxalate) than A Horizons. For example, silt loam A horizons average 4% allophane and B horizons 5.6%; sandy loam A horizons average 2.7% allophane and B horizons 4.5%. Contrasted to this, the means for organic C (OC), cation exchange capacity (CEC) by sum of cations (CEC 8.2 ), CEC by NH 4 OAc at pH 7.0 (CEC 70 ), and base saturation by the sum of cations method (BS 8.2 ) of A horizons are higher than those of B horizons for all textures. Mean field clay percentages (Clay f ), 1:1 H 2 O pH (pH w ), 1 N NaF pH (pH NaF ), and percentage OC are used to predict other soil properties commonly determined in a laboratory. Clay content is estimated by hand texturing, pHs measured in the field, and OC estimated from regression equations having elevation ( E ), mean annual precipitation (MAP), and soil slope as variables. Predicted values include CEC 7 and CEC 8.2 (CEC by sum of cations), acidity, BS 8.2 and BS 7.0 (base saturation by NH 4 OAc at pH 7.0), and percentage allophane. Some predictive equations follow: urn:x-wiley:21632812:soh2sh200140099:equation:soh2sh200140099-math-0001 urn:x-wiley:21632812:soh2sh200140099:equation:soh2sh200140099-math-0002 urn:x-wiley:21632812:soh2sh200140099:equation:soh2sh200140099-math-0003