How much is homeowners insurance in IL for townhome that's not covered by the common insurance?

I'm planning to purchase a townhome and the assessments does include common insurance. I've been told it doesn't protect any misc assets I have in my home in case a disaster occurs. I want to factor this into my monthly expense estimates. I'm looking for a purchase price at $200,000. How much should estimate for homeowners insurance? Is it a monthly and annual payment? Thanks