Does <hn>placement matter in the code?</hn>

[EricSchell]

Does it matter if SEO relevant HTML (such as the placement of an H1) is on line 100 versus 2,000?

(Editing to provide more clarity)
My question is not related to where the H1 is visually on the page (above the fold or below, etc.) its purely a question as to does the line number in the rendered HTML file impact the power of the H1 on the page. As someone with a lot of SEO experience myself, I don't think when a bot is reading the page HTML it cares where the H1 is - just that it exists (and might have a weight above/below fold).

[MonicaOConnor]

I understand the theory but I disagree. When you use your H tags properly it doesn't necessarily make a difference where they are located. H1 tags are usually the title, so it is better to have them higher on the page, however it doesn't negatively effect you if they are closer to the bottom of the page. My h2 and h3 tags are actually above my h1 tags and I have not seen any negative effects from this. The important part of these tags is the keyword use and whether or not they are used in order of importance, h1 most relevant to page, h2 is like a subtitle and so on.

[Leonie-Kramer]

Hi, Yes! For example H1, should be placed on top of the page if possible, or at least as high as possible and only used once, gives the best value of the H1.

You can see H1 as a chapter of a book. You place a chapter on top and not at the end.