Zip codes 98102, 98112, and 98122. Capitol Hill is yet another very densely populated residential district in Seattle, WA.; with a population of over 46,000 in an area of around 4 Miles. The "Hill" or "Cap Hill" as locals sometimes call it, is one of the most prominent in Seattle's entertainment and nightlife districts. Most of the Hill's major thoroughfares are dotted with restaurants, theaters, bars/taverns, coffeehouses and residences cover the gamut from modest motel-like studio apartment buildings and condos to some of the city's grandest and most elegant mansions. Seattle's own; recent grammy winner, Macklemore has been known to shoot music videos in this hip part of Seattle.