Is the cost of living in Wash DC high?

We asked people how much they someone comfortably live on in Wash DC, they wrote...

Other Questions:

•  What do I need to know before retiring in Wash DC?
•  How do I meet people in Wash DC?
•  What is life like in Wash DC?
•  Is there a lot of crime in Wash DC?
•  Is there a lot of diversity? Are people in Wash DC accepting of differences?
•  What are the schools in Wash DC like?
•  Is the cost of living in Wash DC high?
•  What advice do you have for expats having a baby in Wash DC?
•  What are healthcare services like in Wash DC?
•  Is the cost of living in Wash DC high?
•  What type of recreational facilities are in Wash DC?
•  What is the weather like in Wash DC?
•  Are there good restaurants in Wash DC?
•  Where will I buy groceries and do other shopping in Wash DC?
•  What are the visa & residency requirements in Wash DC?
•  Are healthcare and health insurance expensive in Wash DC?
•  What do I need to know when buying property in Wash DC?
•  Are foreigners allowed to own property in Wash DC?
•  What appliances are typically included in a rental?