That seems pretty good pay for someone with a history or humanities degree. But it's in DC, so the cost of living is a lot higher.
You're right, it all depends on the locale. Where I live--southwestern Wisconsin--that's a pretty good salary. But I remember back in 1988 I was offered a job at the USDA in DC. I would get a 20 percent raise (from $30k to $36k) if I took the job. I looked at cost of living and realized that it would be a huge cut despite the increase in dollars--the cost of living was SO MUCH HIGHER than where I was, it would mean I'd never be able to buy a home, never do much more than scrimp and struggle.
I didn't take the job.
If you put that salary into many southern states, many midwestern states, it's a pretty decent compensation package. But not in DC.