COPPERAS COVE â The Copperas Cove City Council met Tuesday to discuss the property tax rate for the Fiscal Year 2021-2022 budget. Currently, city residents are assessed a tax rate of 78.65 cents per $100 valuation, which the council ultimately adopted on Aug. 4, 2020. The cityâs tax rate is the highest when compared to 10 other area cities, to include Killeen and Harker Heights. Councilman Dan Yancey emphasized during the meeting that though it is the highest tax rate, it is more affordable to live in Copperas Cove than some of the other cities. When comparing the average yearly cost for property taxes, Copperas Cove is the fifth lowest out-of-pocket cost among the 11 cities.