There a re rounghly 45-50 bars in the town of Udon Thani that are foreigner friendly. During slow season, August to Nov. approximately, action is very slow. there are very few ladies in the bars working.
The quality of the ladies are very poor. You've got the old, fat and unattractive that stay there and try to make their few baht per day. They are not very enthused going with guys since they are not the real "racy" types that will do as many short times are they can handle. unlike places like Pattaya, Bangkok, Phuket, etc. Udon Thani is where the ladies live and have their families. The real hot chicks travel to neighboring towns aforementioned and make the big money so they can send the money back to their families. If you've been in Bangkok and Pattaya, Udon Thani bars are a BIG disappointment.