The number of confirmed new coronavirus cases in Crawford County was 93 in the past day, which takes the county's total cases to 300, according to Iowa Department of Public Health data.
The jump accompanied expanded testing of residents at a drive-thru site at the Denison Middle School, which began Saturday.
More than half of those who are tested in the county are confirmed to be infected, state data show, which is a positive test rate that far exceeds the statewide average.
Iowa had 386 total new confirmed cases in the past day, and Crawford accounted for nearly a quarter of them. There were also 12 more deaths statewide.
The spike in cases in some parts of western Iowa coincides with Gov. Kim Reynolds' decision to further lift restrictions on businesses in all counties on Friday, including in Woodbury County, where the total number of cases exceeded 2,000 this week and where health officials have reported a new outbreak in a long-term care facility for seniors — the 35th in the state so far.
Carroll County added one more case in the past day and now totals eight. Pottawattamie had 33 more and Buena Vista added 29, for totals of 105 and 74 respectively.