Yes, but the data can be pretty bad, and software to access that data could use some improvement. For geocoding, there is only Nominatim which is a major PITA to get setup. I am still trying to get a full planet import and it has been 30 days on an 8 core 16gb machine with 6 drives in RAID10. Without 64gb of ram and some SSD's, it's going to take a month. Additionally, the results can really really suck. For example, zipcodes are often returned as "97006:97015", a range, rather than as a point. On top of that, sometimes you get the range delimited by a semicolon rather than a colon, etc. The price you pay for user inputted data - there's lots of it, but it's not all quality. Still though, better than paying an arm and a leg!