At least 21 cases of COVID-19, the disease caused by the coronavirus, can be traced to each of the seven ZIP codes that make up the bulk of the Cy-Fair area, according to data released April 12 by the Harris County Public Health Department.

Rather than providing an exact number of cases for each ZIP code, the county provides a range for the case count. The Cy-Fair ZIP code with the highest number of cases is 77433, where between 61-95 cases have been confirmed. The 77433 ZIP code is also among the most populous in the Greater Houston area, with a population of 82,257, according to the most recent data from the U.S. Census Bureau.

Most other Cy-Fair ZIP codes have between 21-40 cases, with the exception of the 77429 ZIP code—another of Houston's most populous—which has between 41-60 confirmed cases.

Across the seven ZIP codes, between 207-355 cases have been confirmed.

Find a full map for Harris County here.