UPDATED Apr. 27, 2021, at 8:00 AM

Where The Latest COVID-19 Models Think We're Headed — And Why They Disagree

Models predicting the potential spread of the COVID-19 pandemic have become a fixture of American life. Yet each model tells a different story about the loss of life to come, making it hard to know which one is “right.” But COVID-19 models aren’t made to be unquestioned oracles. They’re not trying to tell us one precise future, but rather the range of possibilities given the facts on the ground.

One of their more sober tasks is predicting the number of Americans who will die due to COVID-19. FiveThirtyEight — with the help of data compiled by the COVID-19 Forecast Hub — has assembled 11 models published by scientists to illustrate possible trajectories of the pandemic’s death toll. In doing so, we hope to make them more accessible, as well as highlight how the assumptions underlying the models can lead to vastly different estimates. Here are the models’ U.S. fatality projections for the coming weeks.

Forecasts like these are useful because they help us understand the most likely outcomes as well as best- and worst-case possibilities — and they can help policymakers make decisions that can lead us closer to those best-case outcomes.

And looking at multiple models is better than looking at just one because it's difficult to know which model will match reality the closest. Even when models disagree, understanding why they are different can give us valuable insight.

Coronavirus is hard to understand. FiveThirtyEight can help.

How do the models differ?

Each model makes different assumptions about properties of the novel coronavirus, such as how infectious it is and the rate at which people die once infected. They also use different types of math behind the scenes to make their projections. And perhaps most importantly, they make different assumptions about the amount of contact we should expect between people in the near future.

Understanding the underlying assumptions that each model is currently using can help us understand why some forecasts are more optimistic or pessimistic than others.

    State-by-state breakdown

    Below are individual forecasts for all 50 states and the District of Columbia.

    Alabama

    10,852 deaths as of April 26

    Alaska

    347 deaths

    Arizona

    17,268 deaths

    Arkansas

    5,720 deaths

    California

    61,500 deaths

    Colorado

    6,255 deaths

    Connecticut

    8,066 deaths

    Delaware

    1,617 deaths

    District of Columbia

    1,099 deaths

    Florida

    34,912 deaths

    Georgia

    20,009 deaths

    Hawaii

    478 deaths

    Idaho

    2,034 deaths

    Illinois

    24,150 deaths

    Indiana

    13,280 deaths

    Iowa

    5,927 deaths

    Kansas

    4,926 deaths

    Kentucky

    6,459 deaths

    Louisiana

    10,342 deaths

    Maine

    772 deaths

    Maryland

    8,670 deaths

    Massachusetts

    17,562 deaths

    Michigan

    18,446 deaths

    Minnesota

    7,157 deaths

    Mississippi

    7,178 deaths

    Missouri

    9,077 deaths

    Montana

    1,563 deaths

    Nebraska

    2,242 deaths

    Nevada

    5,433 deaths

    New Hampshire

    1,284 deaths

    New Jersey

    25,399 deaths

    New Mexico

    4,027 deaths

    New York

    52,042 deaths

    North Carolina

    12,560 deaths

    North Dakota

    1,517 deaths

    Ohio

    19,122 deaths

    Oklahoma

    6,716 deaths

    Oregon

    2,486 deaths

    Pennsylvania

    25,976 deaths

    Rhode Island

    2,663 deaths

    South Carolina

    9,433 deaths

    South Dakota

    1,960 deaths

    Tennessee

    12,152 deaths

    Texas

    49,967 deaths

    Utah

    2,183 deaths

    Vermont

    244 deaths

    Virginia

    10,706 deaths

    Washington

    5,450 deaths

    West Virginia

    2,821 deaths

    Wisconsin

    7,473 deaths

    Wyoming

    705 deaths

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