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Fertility in Guernsey sits at 1.37 children per woman in 2026, below the replacement level of 2.1. Over the preceding five years it has held broadly steady. About 524 babies are born a year, a crude birth rate of 8.1 per 1,000. Its net reproduction rate sits at 0.66, well below the 1.0 that marks generational replacement. Women are having children later in life, at a mean age of 30.9 years, up from 27.1 in 1980. By 2100, projections see it reaching 1.53 children per woman.
Fertility rate
1.37 children/woman
Birth rate
8.1 per 1,000 people
Total births
524
Mean age at birth
30.9 years
Guernsey's fertility rate of 1.37 children per woman is below the 2.1 replacement level needed to maintain population size without immigration.