[sevenfive]

Richmond, VA is the biggest and most important Richmond. Anyone who has heard of Richmond, VA will likely assume that is the Richmond being referenced. Anyone who hasn't heard of Richmond, VA gains no additional understanding from knowing which state it's in.

[azernik]

If you're in the Bay Area, as HN commenters disproportionally are, your mind is likely to jump first to Richmond, CA in the northern East Bay.