Dolton has one large water tower, visible from Sibley Boulevard, and also from Greenwood Avenue. It has a wide base & is painted powder blue with the word "DOLTON" on the top.
According to the United States Census Bureau, the village has a total area of 4.7 square miles (12.1 km²), of which, 4.6 square miles (11.8 km²) of it is land and 0.1 square miles (0.3 km²) of it (2.57%) is water.
There were 8,512 households out of which 41.6% had children under the age of 18 living with them, 44.6% were married couples living together, 26.1% had a female householder with no husband present, and 23.7% were non-families. 20.8% of all households were made up of individuals and 7.9% had someone living alone who was 65 years of age or older. The average household size was 2.98 and the average family size was 3.42.
In the village the population was spread out with 32.0% under the age of 18, 8.3% from 18 to 24, 29.8% from 25 to 44, 20.6% from 45 to 64, and 9.2% who were 65 years of age or older. The median age was 33 years. For every 100 females there were 86.7 males. For every 100 females age 18 and over, there were 79.1 males.
The median income for a household in the village was $48,020, and the median income for a family was $52,725. Males had a median income of $38,646 versus $31,773 for females. The per capita income for the village was $18,102. About 6.7% of families and 8.4% of the population were below the poverty line, including 10.8% of those under age 18 and 8.3% of those age 65 or over.