Lancaster County made it into the top 25 on a list of cities and counties with the most COVID-19 vaccinated population. The list compiled by website Stacker determined the county has just over 71% fully vaccinated. Northumberland County was ranked 30th while Middlesex County came in at 32. Gloucester County ranked 38th and Mathews County was 42. The top county was Charles City with a 95% vaccination rate.