La Casa Amarilla
This completely new hostal opened in 2008 and has an excellent movie selection, beautiful front rooms and a communal kitchen. The owners are an Anglo-Colombian couple very knowledgeable in things to do in the region and can keep you fully informed on other hostels throughout Colombia as well as transport links.
Hotel La Cassona
The mid-range hotels which are set in colonial buildings are Hotel La Cassona at Cra 2 No. 18-58, Tel. 095 685 5307 which costs 22,000 COP for a double with a fan, 35,000 COP for air-conditioning, and Casa Hotel San Andrés at Cra 2 No. 18-23, Tel. 095 685 5886 which costs 35,000 COP for a double with a fan, and 50,000 COP with air-conditioning.
Hostal Doña Manuela
A double room with air-conditioning here will set you back 95,000 COP. The rooms don't seem any better than other rooms in hotels set in colonial houses. Its amenities include on of the only two hotel swimming pools in Mompos. If you want to stay at a colonial hotel, and save a bit of money, it may be best to stay at a cheaper hotel, and pay the 8000 COP daily swimming pool entry fee.