The following is provided by Wikipedia
Tiverton is located on the eastern shore of Narragansett Bay, across the Sakonnet River from Aquidneck Island(also known as the Island of Rhode Island). Together with the adjacent town of Little Compton, the area is disconnected from the rest of the state of Rhode Island. The northern portion of the town is located on Mount Hope Bay.
Tiverton is located west of the town of Westport and south of the city of Fall River located in Massachusetts. Much of the town is located along a granite ridge which runs in a north-south direction, rising approximately 170 feet in elevation from the bay. A large section of exposed granite can be observed at the highway cut for Route 24, near the Main Road interchange.
According to the United States Census Bureau, Tiverton has a total area of 36.3 square miles, of which 29.4 square miles is land and 7.0 sq mi; (19.16%) is water.
As of the census of 2000, there were 15,260 people, 6,077 households, and 4,405 families residing in the town. The population density was 519.8 people per square mile. There were 6,474 housing units at an average density of 220.5 per square mile. The racial makeup of the town was 97.98% White, 0.43% Black or African American, 0.17% Native American, 0.39% Asian, 0.03% Pacific Islander, 0.22% from other races, and 0.79% from two or more races. Hispanic or Latino of any race were 0.68% of the population.
There were 6,077 households out of which 29.6% had children under the age of 18 living with them, 60.2% were married couples living together, 8.8% had a female householder with no husband present, and 27.5% were non-families. 23.1% of all households were made up of individuals and 11.7% had someone living alone who was 65 years of age or older. The average household size was 2.51 and the average family size was 2.95.
The age distribution of the population of Tiverton was 22.1% under the age of 18, 5.9% from 18 - 24, 29.0% from 25 - 44, 26.6% from 45 - 64, and 16.5% 65 years older. The median age was 41 years. For every 100 females there were 94.9 males. For every 100 females age 18 and over, there were 92.6 males aged 18 or more.
The median income for a household in the town was $49,977, and the median income for a family was $58,917. Males had a median income of $41,042 versus $29,217 for females. The per capita income for the town was $22,866. About 2.9% of families and 4.5% of the population were below the poverty line, including 2.7% of those under age 18 and 9.1% of those age 65 or over.
2010 Census Data can be found HERE.
Both beaches are located on the Sakonnet River. The cool breeze blows strong throughout the year. The beaches in Tiverton are Fogland Beach, which has lifeguards, and also can be used for fishing, hiking/walking, and wildlife/nature observation.
Grinnell's Beach provides an excellent windsurfing area, and a view of the Sakonnet River and Portsmouth shoreline. Amenities include changing rooms, showers, and a children's playground.
Fogland Beach also has lifeguards, and has areas for fishing, and hiking/walking. The cove area to the north of the beach is convenient for nature study.