<p>We reviewed 2077 suspected measles cases; 1160 (56%) were reported in 2021. The total laboratory-confirmed cases were 188 in 30 out of the 47 counties, with 101 (54%) cases in 2021. Confirmed male cases were slightly more than females at 95 (50.5%). The most affected age group was 0 – 4 years (49%). Garissa County reported the highest number of cases; 44 (23.4%). There was a delay of more than a year between an outbreak of measles in 5 counties and a supplemental immunization activity conducted in June 2021 in 22 counties. The surveillance system was simple and representative but had a positive predictive value of 9.8%.</p>