Abd-Elfattah et al.  suggested a set of estimators for calculating population mean using auxiliary attributes. This paper proposes a family of estimators based on an adaptation of the estimators presented by Koyuncu and Kadilar , and introduces a new family of exponential estimators using auxiliary attributes. The expressions of the mean square errors (MSEs) of the adapted and proposed families are derived in a general form. It is shown that the adapted version of the Koyuncu and Kadilar  estimators is always more efficient than that of Abd-Elfattah et al. . Moreover, the new exponential estimators based on auxiliary attributes are more efficient than those of Koyuncu and Kadilar  and Abd-Elfattah et al. . The theoretical findings are supported by a numerical example using original data. (C) 2012 Elsevier Inc. All rights reserved.