Sediment particles 0.00016–0.0024 in. (0.004–0.06 mm) in diameter, regardless of mineral type. Silt is easily transported by moving currents but settles in still water. An unconsolidated aggregate of silt particles is also called silt, whereas a consolidated aggregate is called siltstone. Silt deposits formed by wind are known as loess. Sediments are seldom composed entirely of silt but rather are a mixture of clay, silt, and sand. Clay-rich silt, upon consolidation, frequently develops parting along bedding surfaces and is then called shale. If parting does not develop, the massive rock is called mudstone.
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There were 648 households out of which 41.0% had children under the age of 18 living with them, 58.3% were married couples living together, 7.1% had a female householder with no husband present, and 30.2% were non-families. 23.9% of all households were made up of individuals and 5.9% had someone living alone who was 65 years of age or older. The average household size was 2.69 and the average family size was 3.21.
In the town the population was spread out with 30.5% under the age of 18, 7.8% from 18 to 24, 37.6% from 25 to 44, 18.2% from 45 to 64, and 5.9% who were 65 years of age or older. The median age was 31 years. For every 100 females there were 108.9 males. For every 100 females age 18 and over, there were 104.4 males.
The median income for a household in the town was $44,632, and the median income for a family was $51,736. Males had a median income of $37,566 versus $25,417 for females. The per capita income for the town was $17,723. About 5.0% of families and 7.8% of the population were below the poverty line, including 5.1% of those under age 18 and 17.1% of those age 65 or over.