There are too many pilot counties of cooperative medical care in China, with more than a dozen in each province, and some of them have been implemented in the whole province.
This is from Hebei Province:
Qinglong, Funing, Luanping, Luquan, Qian 'an, Zunhua, Huai 'an, Tanghai, Dachang, Zhuozhou, Renqiu, Qingxian, Suning, Zaoqiang, Shahe, Wu 'an, Shexian and Handan.
Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.