Delmar is a very small town located in the state of Delaware. With a population of 2,216 people and two associated neighborhoods, Delmar is the 25th largest community in Delaware. Much of the housing stock in Delmar was built relatively recently. The construction of new real estate can often be taken as an indication that the local Delmar economy is robust, and that jobs or other amenities are attracting an influx of new residents. This seems to be the case in Delmar, where the median household income is $61,344.00.

Telecommuters are a relatively large percentage of the workforce: 8.47% of people work from home. While this number may seem small overall, as a fraction of the total workforce it is high relative to the nation. 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.

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

In terms of college education, Delmar is nearly on par with the US average for all cities of 21.84%: 20.90% of adults 25 and older in Delmar have a bachelor's degree or advanced degree.

The per capita income in Delmar in 2022 was $26,979, 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 $107,916 for a family of four. However, Delmar contains both very wealthy and poor people as well.

Delmar is an extremely ethnically-diverse town. The people who call Delmar home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Delmar residents report their race to be White, followed by Black or African-American. Important ancestries of people in Delmar include English, Irish, German, Italian, and Jamaican.

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