Seneca is a very small town located in the state of Pennsylvania. With a population of 1,011 people and two associated neighborhoods, Seneca is the 829th largest community in Pennsylvania.

A relatively large number of people in Seneca telecommute to their jobs. Overall, about 17.92% of the workforce works from home. While this may seem like a small number, as a fraction of the total workforce it ranks among the highest in the country. These workers are often telecommuters who work in knowledge-based, white-collar professions. For example, Silicon Valley has large numbers of people who telecommute. Other at-home workers may be self-employed people who operate small businesses out of their homes.

The town is relatively quiet, having a combination of lower population density and few of those groups of people who have a tendency to be noisy. For example, Seneca has relatively fewer families with younger children, and/or college students. Combined, this makes Seneca a pretty quiet place to live overall. If you like quiet, you will probably enjoy it here.

Being a small town, Seneca does not have a public transit system used by locals to get to and from work.

The population of Seneca overall has a level of education that is slightly above the US average for all US cities and towns of 21.84%. Of adults 25 and older in Seneca, 22.11% have at least a bachelor's degree.

The per capita income in Seneca in 2022 was $32,226, which is middle income relative to Pennsylvania and the nation. This equates to an annual income of $128,904 for a family of four. However, Seneca contains both very wealthy and poor people as well.

The people who call Seneca home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Seneca residents report their race to be White, followed by Asian. Important ancestries of people in Seneca include German, Italian, English, Irish, and Dutch.

The most common language spoken in Seneca is English. Other important languages spoken here include Polish and Italian.