An infant is a child under one year of age. The infant mortality rate is calculated by dividing the number of infant deaths by the number of live births. We multiply the result by 1,000. In counties with relatively few people, a small number of infant deaths may have a significant effect on rates from year to year.
In Washington . . .
- The infant mortality rate was 4.5 per 1,000 in 2014, compared to NA per 1,000 in the U.S.;
- 402 infants died in 2014, compared to 440 in 1997