More than 1 in 100 residents in the Ennistymon electoral area have contracted COVID-19 in the past fortnight.
New Health Protection Surveillance Centre data shows the prevalence of the disease has risen in all areas of the county this week.
North Clare’s rate of COVID-19 has more than doubled in the past two weeks.
171 people were diagnosed with the virus there in the fortnight up to Monday according to the HSPC, leaving its disease rate at 1042.2 per 100,000 people.
Ennis’ figure has almost doubled compared to the same time last week.
208 people in its electoral area have contracted COVID-19 in the past fortnight, with its number now at 672.9 – also well above the national average.
The Killaloe electoral area has seen 92 confirmed cases in 14 days, and its rate is 457.5 per 100,000 people.
Both the Kilrush and Shannon areas have also seen increases, but they’re far smaller than other parts of the county.
84 people tested positive for COVID in West Clare in the 14 days to last Monday, with its figure standing at 400.1.
86 people were diagnosed with the disease in the Shannon region in the same timeframe, leaving its number at 282.9, which is the lowest in Clare.