Pain behind the Knees â Causes, Risk Factors and Treatment. An injury or blow to the back of the leg due to a fall or some other accident may lead to considerable pain in the posterior knee region. A sprain may lead to considerable pain, that may be accompanied by redness and swelling.
Ontario is a Province in Canada. There are no US states by that name. There is Ontario California stateside. Valerie Lee.
Ontario, San Bernardino County Sales Tax Rate. Details. The sales tax in Ontario is 8%, which is about average for cities in San Bernardino County and about average for California. Ontario is one of 102 cities in San Bernardino County with a distinct sales tax as listed by the California Board of Equalization. See all cities in San Bernardino County.