Czechia: 81% of women born in 1960 had a first child by 26, 31% of those born in 1980. By 40: 94% and 84%
Half of the 1960 generation were mothers by 22, of the 1980 one by 29. A 50 points gap at 26 shrank to 10 points by 40.
More
Each line is women born in one year in Czechia: the share who had a first child by a given age. The further right a line rises, the later women become mothers; where it ends on the right is how many ever did.
Across: age; up: the share with a first child. A line stops at the age its generation had reached in the latest year of data: women born in 1995 are 26 so far, their line is short and not extended. The dashed line marks 26. Orange is 1980, bright blue 1960.
- Born in 1960: had a first child by 26 % of women
80.8%
- Born in 1980: had a first child by 26 % of women
31.2%
- Born in 1960: had a first child by 40 % of women
93.6%
- Born in 1980: had a first child by 40 % of women
83.6%
- Born in 1990: had a first child by 31 % of women
58.4%
- Born in 1995: had a first child by 26 % of women
28.0%
Human Fertility Database, cumulative first births per woman by age (ccfrVHbo) × 100 = share of a generation with a first child. Age is the age reached in the calendar year, about half a year older on average: “by 26” means by the end of the year she turned 26 (about 26.5 in exact age). Tables from the Our World in Data copy (2025-10-22 download).
These are birth registers, not a survey: every birth in the country is counted. Women moving in or out change the denominator, so a line can dip slightly. The card says nothing about why women become mothers later.
A question for this picture
Why was the shift so abrupt in Czechia?