The first confirmed case relating to the COVID-19 pandemic was announced by the state of Washington on January 21, 2020. Washington made the first announcement of a death from the disease in the U.S. on February 29 and later announced that two deaths there on February 26 were also due to COVID-19. Until mid-March, Washington had the highest absolute number of confirmed cases and the highest number per capita of any state in the country, when it was surpassed by New York state. Many of the deceased were residents of a nursing home in Kirkland, an Eastside suburb of Seattle in King County.
The first case relating to the COVID-19 pandemic in the U.S. state of California was confirmed on January 26. A state of emergency has been in place in the state since March 4. A mandatory statewide stay-at-home order was issued on March 19. As of May 30, 2020, the California Department of Public Health (CDPH) reported 110,583 confirmed cases and 4,213 deaths in the state.
The first case of COVID-19 in the U.S. state of New York during the pandemic was confirmed on March 1, 2020 As of June 1, 2020, there have been 2 million tests, 371,700 confirmed cases, and 23,959 deaths. New York has the highest number of confirmed cases of any state in the United States, with three times as many cases as neighboring New Jersey and seven times that of neighboring Pennsylvania. Until May 24 New York had more cases than any country, with the exception of the United States.
The COVID-19 pandemic in Massachusetts is part of an ongoing pandemic of coronavirus disease 2019 (COVID-19) in the U.S. state of Massachusetts. The first confirmed case was reported on February 1, 2020, and the number of cases began increasing rapidly on March 5. Governor Charlie Baker declared a state of emergency on March 10. By March 12, more than a hundred people had tested positive for the virus. Most early cases were traceable to a company meeting held in Boston in late February by the Cambridge-based biotechnology firm Biogen. Massachusetts is fourth in the U.S. for overall number of cases and third for cases per capita statewide. As of June 1, 2020, there were 100,805 confirmed cases and 7,035 deaths due to COVID-19. Massachusetts had performed 599,919 tests.
The COVID-19 pandemic reached Colorado on March 5, 2020, when the state's first two cases were confirmed. As of June 1, 2020, Colorado public health authorities reported 26,577 confirmed cases of COVID-19, an increase of 199 cases (0.7%) over the previous day, resulting in 4,372 hospitalized patients. Thirteen deaths have occurred over the past 24 hours, bringing the state's COVID-19 death toll to 1,458. All three of these figures are cumulative, beginning on March 5, 2020.
On March 1, 2020, the U.S. state of Florida became the seventh state in the United States with a documented COVID-19 case, during the COVID-19 pandemic. Within two weeks, widespread closures of public schools, resorts, and theme parks had been announced throughout the state. As of May 28, Florida is the 9th highest state in the United States with COVID-19 cases.
The COVID-19 pandemic was confirmed to have reached the U.S. state of Oregon on February 28, 2020.
The COVID-19 pandemic reached the U.S. state of Texas in March 2020. As of May 31, 2020, Texas public health officials have reported 64,287 confirmed COVID-19 cases and 1,672 deaths.
The COVID-19 pandemic was reported to have reached the U.S. state of Delaware on March 11, 2020, in New Castle County. As of May 25, 2020, the Delaware Department of Health and Social Services confirmed 8,965 cases and 332 deaths in the state, with 4,693 recoveries.
The ongoing COVID-19 pandemic began in the U.S. state of Illinois on January 24, 2020, when a woman in Chicago, who had just returned from the pandemic's place of origin in Wuhan, Hubei, China, tested positive for the virus. This was the second case of COVID-19 in the United States during the pandemic. The woman's husband was diagnosed with the disease a few days later, the first known case of human-to-human transmission in the United States. Community transmission was not suspected until March 8, when a case with no connection to other cases or recent travel was confirmed.
The first presumptive case relating to the COVID-19 pandemic in Louisiana was announced on March 9, 2020. Since the first confirmed case, the outbreak grew particularly fast relative to other states and countries. As of May 18, 2020, there have been 34,709 confirmed cases in Louisiana, and of those 2,440 people have died. Confirmed cases have appeared in all 64 parishes, though the New Orleans metro area alone has seen the majority of positive tests and deaths. Governor John Bel Edwards closed schools statewide on March 16, 2020, restricted most businesses to takeout and delivery only, postponed presidential primaries, and placed limitations on large gatherings. On March 23, Edwards enacted a statewide stay-at-home order to encourage social distancing, and President Donald Trump issued a major disaster declaration, the fourth state to receive one.
The COVID-19 pandemic was confirmed to have reached the U.S. state of Missouri in March 2020. As of May 28, 2020, the Missouri Department of Health and Senior Services has confirmed 12,673 cases and 707 deaths in the state.
The COVID-19 pandemic was confirmed to have reached the U.S. state of Montana on March 14, 2020. As of June 1, 2020 the Montana Department of Public Health and Human Services (MDPHHS) has confirmed 519 positive cases and 17 deaths in the state.
The COVID-19 pandemic was confirmed to have reached the U.S. state of New Jersey with a case arriving in Bergen County on March 2, 2020 and testing positive on March 4. As of June 1, 2020, there were 160,445 confirmed cases in the state with 11,698 deaths.
The COVID-19 pandemic was confirmed to have reached the U.S. state of New Mexico in March 11, 2020.
The COVID-19 pandemic was confirmed to have reached the U.S. state of North Carolina on March 3, 2020.
The COVID-19 pandemic was confirmed to have reached the U.S. state of South Carolina in March 2020. As of May 31, 2020, the South Carolina Department of Health and Environmental Control has confirmed 11,861 cases in the state, resulting in 494 deaths. On April 2, 2020, DHEC announced that the virus had spread to all 46 counties in the state.
The following is a timeline of the COVID-19 pandemic in the United States.
During the COVID-19 pandemic, former passengers of the cruise ship Grand Princess who had tested positive for SARS-CoV-2 were being linked to cruises they had taken on the ship while it traveled between California, Mexico, and Hawaii. After the first confirmed death on 4 March 2020, Grand Princess was rerouted to the San Francisco Bay Area, where it was anchored offshore while test kits were airlifted to the ship. Preliminary testing found 21 positive cases, and the ship later docked in Oakland on 9 March 2020, with over 3,000 people entering quarantine.
Around the 20 March 2020, new drive-through testing centers opened at Hudson Regional Hospital. On 14 May, Hudson County surpassed Bergen for the most coronavirus cases in NJ with over 17,134 cases while Bergen has 17,080.
