Gretna is a very small town located in the state of Virginia. With a population of 1,276 people and four associated neighborhoods, Gretna is the 259th largest community in Virginia.

And if you like science, one thing you'll find is that Gretna has lots of scientists living in town - whether they be life scientists, physical scientists (like astronomers), or social scientists (like geographers!). So, if you're scientific-minded, you might like it here too.

Also of interest is that Gretna has more people living here who work in computers and math than 95% of the places in the US.

One interesting thing about the economy is that relatively large numbers of people worked from their home: 18.97% of the workforce. While this number may seem small overall, as a fraction of the total workforce this is high compared to the rest of the county. 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, Gretna does not have a public transit system used by locals to get to and from work.

The citizens of Gretna are slightly less educated than the national average of 21.84% for the average city or town: 13.63% of adults in Gretna have a bachelor's degree or advanced degree

The per capita income in Gretna in 2022 was $23,535, which is low income relative to Virginia and the nation. This equates to an annual income of $94,140 for a family of four. However, Gretna contains both very wealthy and poor people as well. Gretna also has one of the higher rates of people living in poverty in the nation, with 42.20% of its population below the federal poverty line.

Gretna is an extremely ethnically-diverse town. The people who call Gretna home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Gretna residents report their race to be White, followed by Black or African-American. Gretna also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 18.66% of the town’s residents. Important ancestries of people in Gretna include English, German, Jamaican, African, and Irish.

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