Georgetown Co. has stateâs top COVID-19 vaccination rate What to expect after getting a COVID-19 vaccine By WMBF News Staff | April 19, 2021 at 12:45 PM EDT - Updated April 19 at 12:45 PM GEORGETOWN COUNTY, S.C. (WMBF) â Georgetown County now leads South Carolina in its of COVID-19 vaccination of eligible residents, according to officials with Tidelands Health. More than 50% of eligible Georgetown County residents â approximately 26,784 of the 52,625 included in the eligible population â have received at least one dose of the COVID-19 vaccine, making the county No. 1 in the state, according to the Horry County ranks fourth, with 133,359 of 281,915 residents aged 15 and older having received at least one vaccine dose, a press release stated.