In this paper, the dispersion of vulnerable households is determined in different geographical areas. For this purpose, we used the Proxy Means Test strategy, based on an assessment of individual households in the population. Using the Household Expenditure and Income Survey data, first, a regression model is designed with independent variables, which correlated with households’ income. Then the estimation of expected income is obtained for each household in the sample. This model is used for estimating the expected income for all settled households hand groups of households whose information was gathered in 2011 Population and Housing Census database. The results that are used for classifying all rural and urban areas across the country show that the Sistan and Baluchestan and Tehran provinces have the highest and lowest percentages of households in the first two deciles of expected income respectively. Also, Tehran and Bashagard cities respectively have the highest and lowest percentages of the households that belong to the first two deciles of expected income.