The following map shows the number of deaths from Covid-19 by state as of 3/30/2020 6:30PM EDT according to CDC data (as reported in the New York Times). The count changes hourly.
Other maps I’ve seen online and on television news show the number of cases. This can be misleading because that number depends a lot on the availability of testing and the willingness of people to get tested. I believe the number of deaths is a better indication of the spread of the disease. What is most notable in this map is that California, despite being the most populous and the second to be hit, has fewer deaths than New York, Washington, Louisiana, Michigan, and New Jersey. I attribute this to the early use of business closures, social distancing, and the public acceptance of the health authorities’ orders along those lines. Other states seemed to be somewhat in denial and delayed those measures. There may be other factors involved, such as the density of the populations and the readiness of the medical facilities, but I have seen authoritative commentators also attribute the relatively slow increase here in California to our successful early measures.
Not shown on the map: Puerto Rico: 6; Guam 1