A condo is usually an apartment, but can be a regular house, where you own the unit, but pay into a common fund for the upkeep of the grounds, pool, whatever. Over here, 1st time buyers, empty-nesters, or people who travel a lot and don't want to deal w/exterior upkeep often choose a condo.
I will be staying in an apartment condo until my stuff comes, but I am renting a townhouse condo in Iowa (not much front yard, but a nice backyard). I'm tired of apartments and want some space.