Measles in Indiana 2026: Cases, Outbreaks, and Vaccination Coverage

Measles Cases in Indiana: 2026 Update

Indiana is one of the states being closely watched during the 2026 measles resurgence. With over 600 confirmed cases nationally across 30 states, understanding local data matters.

Check the latest case count on our Indiana measles tracker, which updates weekly with data from the Johns Hopkins Measles Tracking project.

Indiana’s MMR Vaccination Rate

A key factor in measles vulnerability is vaccination coverage. Indiana’s kindergarten MMR vaccination rate can be found on our Indiana MMR coverage page.

The CDC recommends 95% MMR coverage for herd immunity against measles. When coverage drops below that threshold, communities become vulnerable to outbreaks — especially since measles is one of the most contagious diseases known, with one infected person potentially spreading it to 12-18 others.

Nearby States to Watch

Measles doesn’t respect state borders. If there’s an outbreak in a neighboring state, Indiana residents who travel to those areas could be at risk. Here’s how Indiana’s neighbors are doing:

Illinois measles cases — Indiana’s western neighbor
Ohio measles cases — Eastern border state
Michigan measles cases — Northern neighbor
Kentucky measles cases — Southern border state

What to Do If You’re in Indiana

Check your vaccination status. Most adults born after 1957 need at least one MMR dose. Healthcare workers and international travelers need two.
Check your children’s records. The CDC recommends the first MMR dose at 12-15 months and the second at 4-6 years.
Know the symptoms. Measles starts with high fever, cough, runny nose, and red eyes, followed by a rash that spreads from face to body.
Contact your doctor if you think you’ve been exposed, especially if unvaccinated.

Other Health Data for Indiana

Indiana flu activity — Current influenza levels
Indiana RSV activity — RSV hospitalizations
Indiana COVID-19 activity — ER visits for COVID

About This Data

Measles case data comes from the Johns Hopkins Measles Tracking Team, which compiles reports from state and local health departments. County-level data may be incomplete as not all jurisdictions report at the same frequency. See our data sources page for more details.

Updated weekly. See the Indiana measles dashboard for the latest numbers.