Average Age of Mothers in Alberta at Birth (1991-2023)

Over the last three decades, Alberta has seen a dramatic change in when women choose to have children. From 1991 to 2023, the percentage of births to younger mothers—especially teenagers—has sharply declined, while births among women in their 30s and 40s have steadily risen.

In 1991, over 8% of all live births in Alberta were to women aged 15–19. By 2023, that number dropped to just 1.3%, reflecting shifting social norms, improved education access, and enhanced reproductive health awareness. Similarly, births among women aged 20–24 decreased from 21.9% to 9.1% in the same period.

Conversely, births to women aged 30–34 rose from 25.9% in 1991 to nearly 37.8% in 2023, while the 35–39 age group increased from 8.2% to 21.5%. Even mothers aged 40–44 saw growth—from under 1% to 4.5%—highlighting growing confidence in later-in-life pregnancies.

Percentage of Births by Age of Mother in Alberta:

Age of mother	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023
under 15 years	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0	0	0	0	0	0	0	0.1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
15 to 19 years	8	7.7	7.5	7.6	7.7	7.2	6.9	6.9	6.8	6.6	6.2	5.7	5.3	5.1	5.1	5.1	5.1	4.8	4.6	4.2	3.9	3.6	3.4	2.9	2.7	2.4	2.2	1.9	1.7	1.7	1.5	1.4	1.3
20 to 24 years	21.9	21.5	21.7	20.8	20.9	20.2	20.2	20.6	20.8	20.4	20.3	20.4	20.1	19.5	19.2	19.3	18.8	18	17.2	16.4	15.5	15.2	14.5	13.5	13	12	11.6	10.7	10.2	10	9.3	9.3	9.1
25 to 29 years	35	33.8	33.2	32.8	31.8	31.7	32	31.3	30.9	30.8	30.8	31	31	31.7	31.6	31.4	32.1	32.2	32.7	32.4	32.2	31.8	31.1	30.7	30.2	29.3	28.6	27.9	27.5	27	26	25.4	25.4
30 to 34 years	25.9	27.3	27.4	27.9	28.1	28.3	27.4	27.8	27.2	27.4	28.1	28.4	28.7	28.9	29	28.9	28.6	29.3	29.7	30.2	31.5	32.2	33.5	34.4	35.3	35.9	36.5	36.9	37	37.4	38.3	38	37.8
35 to 39 years	8.2	8.5	9	9.6	10.1	11.1	11.5	11.5	12.2	12.6	12.4	12.3	12.4	12.2	12.5	12.7	12.9	13.1	13.2	13.9	13.9	14.3	14.6	15.5	15.6	17	17.6	18.8	19.6	19.7	20.7	21.2	21.5
40 to 44 years	0.9	1	1.1	1.2	1.2	1.5	1.8	1.7	1.9	2.1	2.1	2.1	2.4	2.4	2.4	2.3	2.3	2.3	2.5	2.7	2.8	2.7	2.8	2.9	2.9	3.2	3.3	3.6	3.8	4	4	4.4	4.5
45 to 49 years	0	0	0	0	0	0	0	0.1	0.1	0	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.2	0.2	0.2	0.1	0.1	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.3	0.2	0.3

Source:

Source Name:	Statistics Canada. Table 13-10-0416-01. Live births, by age of mother.
Source Link:	https://www150.statcan.gc.ca/t1/tbl1/en/cv.action?pid=1310041601
Release Date:	2024-09-25