LARGO, Md. — WUSA9's website tracking data shows huge numbers of people are spending time looking at Maryland ZIP code maps to find out how many COVID-19 cases are in their areas.

The State of Maryland is now reporting COVID-19 cases by ZIP code. Health officials say they want to be transparent, but that the map could also be misleading.

First is ZIP code 22066 in Great Falls, where the median home price was $2.39 million. It's where an AOL co-founder's estate sold in 2020 for a record-breaking $45 million.

Though the 21215 ZIP code has the state’s highest number of coronavirus cases, the rate of infection there, about 2.3 cases per 1,000 residents, is lower than in other postal codes.

Wealthiest ZIP codes in Maryland, Virginia and D.C. WTOP Staff May 11, 2015, 4:44 PM ...