Plague DataUpdated October 16, 2026

Plague in the United States

The U.S. has had 2 human plague cases so far in 2026 (Arizona 1, New Mexico 1), according to provisional CDC counts. In 2025 there were 6 cases and 1 death.

CDC says the U.S. averages about five human cases a year, mostly in northern New Mexico and Arizona. The U.S. sent no plague data to WHO for 2019–2025, so these CDC numbers are not part of WHO's worldwide totals.

Cases by year, last ten years

U.S. human plague cases: 2016 4, 2017 5, 2018 1, 2019 1, 2020 9, 2021 4, 2022 0, 2023 2, 2024 3, 2025 642016520171201812019920204202102022220233202462025

2026 so far

Provisional
StateCases
Arizona1
New Mexico1

CDC weekly tables, through week 40. Weekly counts can change before CDC finalizes them.

Every year since 2000

YearCasesDeaths
202561
202431
202320
202200
202141
202092
201910
201810
201750
201640
2015164
2014100
201341
201240
201130
201020
200982
200830
200772
2006172
200580
200431
200310
200220
200120
200060

Cases by state, 1970–2025

StateCases
New Mexico258
Colorado70
Arizona65
California47
Oregon20
Utah16
Texas9
Nevada7
Idaho4
Wyoming4
Oklahoma3
Connecticut1
Georgia1
Illinois1
Maryland1
Michigan1
Montana1
Washington1

One further case has an unknown state.