$200k is a lot for most positions in the US. The median for a US dev is about $105k. I'm not surprised if you're not seeing positions higher than that.
I think that's highly location dependent. Your numbers might be right for a few locations like Silicon Valley, N. VA, NYC, etc. But the majority of locations seem much lower - basically half.
I don't see a national median from the BLS for seniors, but I see other numbers saying $115k-130k median for seniors (glassdoor, indeed, payscale, etc). This is consistent with what I see. Most of the senior dev positions in my area (Philly region) are between $100k and $150k, with $100k-120k being the most common. I even see some senior level jobs with a lower end of the range around $85k (my company has that as a senior dev minimum, with a max of $150k). I see a few for $200k-ish, but for principle/director/etc level dev. These are very uncommon in my area.
I'm a midlevel dev. I think my company range for the level is about $75k-110k. It seems to be consistent with others in the area. There could be higher ones, but I don't see many mid level postings, especially with salary info. The vast majority are senior postings. Glassdoor says $85k is pretty average/common for a mid level in my area with 5+ years experience and a masters.
It's all relative. It's a semi-high COL region. You have a lot of security, defense, intelligence, and other government contractor/ consulting jobs in the area. I see a lot of $100k+ jobs and even a fair number of $200k+ jobs. This is better than my area and appears to be as better than the national median of about $105k since I see way more jobs over that number than under it in that area.
Seems to be bimodal. Good senior devs get 180-200k and then FAANG get 300k+.