I'm in the Raleigh-Durham, NC area. Keep in mind, the cost of living here is a bit cheaper than Seattle.

(A salary of $85,000 in Seattle, Washington could decrease to $55,363 in Raleigh, North Carolina)

Database Administrator (Indeed) = $57,000 Average

Senior Database Administrator (Indeed) = $89,000 Average

There was only 3 listings for 100K+ at this current time on Indeed. If you dive into SQL Serve or MySQL, then you may see a slight bump in the averages, but not much.

Database Administrator (Glassdoor) = $73,991 Average

Database Administrator (Glassdoor) = $67,672 National Average

Senior Database Administrator (Glassdoor) = n/a Average, $92,423 from Quintiles

Senior Database Administrator (Glassdoor) = $105,289 National Average

Personally, I just get an idea from the local community if I can. Surveys, job sites and so forth can only go so far.