The purpose of this study was to analyze the factors affecting income distribution among the farmers of four villages of Marzijaran, Hezaveh, Mehrabad and Dayen from Marzijaran district of Arak township of Markazi province, Iran . Data were collected by filling out questionnaires and having interviews with 249 farmers, selected by stratified random sampling. The data were analyzed using Lourenz curve, Gini ratios, comparing the income quintiles, income ratios, and means, Pearson and Spearman correlation coefficient-Mann-Withney test, Kruskal-Wallis test and logistic regression model. The results show that the income inequalities in Marzijaran village calculated by the ratios of richest to poured quintiles were larger than Hezave, Mehrabad and Dayen. The Gini coefficients in Marzijaran, Hezave, Mehrabad and Dayen were calculated as 38 percent, 25 percent, 35 percent, and 29 percent, respectively. The source of income of the farmers included agricultural activities (crops, livestock and fruit production) and second job. Income from agricultural sources was the most effective factor of income inequalities in which fruit production, crops, and livestock are of importance, respectively. In the four villages, the mean age and experience of farmers in the fifth quintile (the richest) was considerably larger than the others. Logistic regression results indicated that such factors as the number of children lived with their family, having non farm occupation, agricultural income percentage, non-farm income percentage, owning farm land, irrigated and garden lands area and having 26-35 years of experience inhibit the farmers of falling in first income quintile. On the other hand, such factors as Marzijaran residency and the age of farmers (46-55 years old) result in falling in the first income quintile. Kruskal-Wallis test results show significant difference at 1 percent level in total net income in four villages.