Seaford is a somewhat small city located in the state of Delaware. With a population of 8,735 people and six associated neighborhoods, Seaford is the tenth largest community in Delaware. There's nothing like the smell of a brand new house, and in Seaford, you'll find that a large proportion of houses were recently built. New growth in residential real estate is an indication that people are choosing to move to Seaford, and putting down their money on brand new construction. Seaford’s real estate is, on average, some of the newest in the nation. Seaford does seem to be experiencing an influx of affluent people, because the median household income is $51,120.00.

The education level of Seaford citizens, measured as those with bachelor's degrees or advanced degrees, is similar to the national average for all American cities and towns. 17.53% of adults 25 and older in Seaford have a college degree.

The per capita income in Seaford in 2022 was $27,851, which is low income relative to Delaware, and lower middle income relative to the rest of the US. This equates to an annual income of $111,404 for a family of four. However, Seaford contains both very wealthy and poor people as well.

Seaford is an extremely ethnically-diverse city. The people who call Seaford home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Seaford residents report their race to be White, followed by Black or African-American. Seaford also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 10.48% of the city’s residents. Important ancestries of people in Seaford include Irish, English, German, Haitian, and Italian.

The most common language spoken in Seaford is English. Other important languages spoken here include French and Spanish.