You're in the City of Leesburg and Lake County. You pay property taxes to both. Your CC&R document shows this. The Villages of Newell, Lake Denham and Dabney are in the City of Leesburg.
The local post office is in Okahumpka. Okahumpka is a tiny CDP, only 1/4 square miles, with about 200 people. The map on the Okahumpka wikipedia page shows Okahumpka, as a thin red rectangle which is circled, the City of Leesburg is shaded in and Lake County is the large outline.
Okahumpka, Florida - Wikipedia