Khon Kaen is one of the biggest cities in the Northeast of Thailand and the capital of the province with the same name. Even if it’s a big city, Khon Kaen is still a quiet town with a very low crime rate. The major problem of this city is they have a few English speakers.
Khon Kaen is in Thailand, you will need to check at The Thai Embassy in your country what is the requirement to travel there for more than 30 days.
Not too much to say, Thailand is very secure about health, no need to have a ton of vaccines, some are recommended by not mandatory. In case of trouble, there are very nice hospitals and clinics there, and also a Bangkok Hospital branch. Khon Kaen is also well known for its medicine university, probably the best in the country.
Cheaper than Bangkok, the money is the Thai Baht. There is a lot of Atm around the city, many banks and changes services. The best exchange rates can be available at the superrich near the Kosa hotel. You can use your credit card in major businesses of the town.
Useful Phone Numbers
193 Emergency medical services
1155 Tourist Police
1672 Tourist Service Center
0 4322 7714 to 6 Tourism Authority of Thailand (TAT)
+66 43 468 170 Khon Kaen airport