At the
2000 census, 28,183 people, 11,150 households, and 7,827 families living in the town. The population density was . There were 11,582 housing units at an average density of . The
racial makeup of the town was 97.35% White, 0.72% African American, 0.12% Native American, 0.89% Asian, 0.02% Pacific Islander, 0.14% from other races, and 0.75% from two or more races. Hispanic or Latino of any race were 1.20% of the population. Of the 11,150 households, 30.9% had children under 18 living with them, 59.0% were married and living together, 8.4% had a female householder with no husband, and 29.8% were non-families. 26.0% of households were one person and 12.5% were 1 person 65 or older. The average household size was 2.44 and the average family size was 2.95. The age distribution was 23.7% under 18, 5.0% from 18 to 24, 26.3% from 25 to 44, 26.1% from 45 to 64, and 18.9% 65 or older. The median age was 42 years. For every 100 females, there were 91.9 males. For every 100 females 18 or older, there were 86.8 males. The median household income was $52,373 and the median family income was $62,599. Males had a median income of $42,992 versus $29,228 for females. The per capita income for the town was $24,795. 4.1% of the population and 2.5% of families were below the poverty line. Out of the people living in poverty, 5.2% were under 18 and 4.2% were 65 or older. == Communities and locations in Glenville ==