Thanks again to Katerina for sending me the cached page with the 2004 Iowa caucus results by county. I contacted someone at the Des Moines Register, and they fixed the page so that those results can be seen again:
In case anyone wants to check how the candidates did in this or that county.
Keep in mind that in 2004 there were 3,000 state delegates up for grabs; this cycle there will only be 2,500. So the counties are assigning different numbers of state delegates than what appears on this page.