Okay, by California standards a city is considered urban if it has 50,000 population + and it's continious area is also urbanized.
San Luis Obispo has always been urban to me, and I think the state considers them to be urban also. The argument I think lies with Cal Poly. The dorm residents aren't considered apart of the city population. I think they should though. Most are out of state and far from their homes and stay in the dorms almost all the time. It's no different than a person staying in an apartment.
There are currently 6,000 students staying at the Cal Poly dorms. The city has 44,750 population. If you put the dorm residents and the incorporated city together you get over 50,000 population.
My question is why are the dorm residents not considered apart of the city? Is it because Cal Poly is within the rural, county-zoned parts of San Luis Obispo city? Will the 2010 census reveal SLO is bigger than it appears?