Average Height for 15-Year-Old Girls

At 15 years, the median in the CDC table for girls is 161.9 cm (5 ft 3.7 in), which is 99.1% of the median at age 20 (163.3 cm). The 3rd percentile is 149.7 cm and the 97th is 174.2 cm.

CDC standing stature percentiles for 15-year-old girls. Source: CDC 2000 Growth Charts: stature-for-age, 2-20 years, file statage.csv, row `Sex=2, Agemos=180.5 (completed month 180 band)` (dataset page).
Percentile	Metric	Feet-inches
3rd	149.7 cm	4 ft 11.0 in
5th	151.3 cm	4 ft 11.6 in
10th	153.6 cm	5 ft 0.5 in
25th	157.5 cm	5 ft 2.0 in
50th	161.9 cm	5 ft 3.7 in
75th	166.3 cm	5 ft 5.5 in
90th	170.2 cm	5 ft 7.0 in
95th	172.6 cm	5 ft 8.0 in
97th	174.2 cm	5 ft 8.6 in

CDC height reference for 15-year-old girls, showing the 3rd through 97th percentiles in centimeters and feet-inches.

Check a height against this row

Accepts 136.2 to 188.1 cm.

How much the median still changes after 15 years

Six months on, the median is 162.3 cm, a change of 0.4 cm; a year on it is 162.6 cm, a change of 0.7 cm. From this age to 20 the table adds 1.4 cm to the median in total.

Every 12-month gain in the girls' median that starts at 14 years 7 months or later is under 1 cm. The largest 12-month gain after age 6 is 7.3 cm, from 11 years 1 month, so the steep part of the table is already behind this age.

Across the next 12 months the lowest line shown, the 3rd percentile, moves up 0.7 cm, and the highest, the 97th, moves up 0.6 cm. The two lines move almost in step, so the gap stays near 24.5 cm.

Nearby rows of the CDC stature-for-age table for girls, in centimeters. The last column is the change in the median since the row above.
Age	3rd	50th	97th	Change
13 years	144.2	157.3	170.2
14 years	148.1	160.5	172.9	+3.2
14 years 6 months	149.1	161.3	173.6	+0.8
15 years	149.7	161.9	174.2	+0.6
15 years 6 months	150.1	162.3	174.5	+0.4
16 years	150.4	162.6	174.8	+0.3
17 years	150.7	162.9	175.1	+0.3
20 years	151.1	163.3	175.5	+0.4

Where the 3rd and 97th percentiles sit

The middle half of the reference, from the 25th to the 75th percentile, spans 8.8 cm; the 3rd-to-97th range spans 24.5 cm. For girls, that range is widest at 11 years 6 months (28.0 cm).

Measured against younger girls, a 15-year-old girl on the 3rd percentile (149.7 cm) roughly matches the median girl of 11 years 9 months (149.7 cm). The 97th-percentile height (174.2 cm) is 10.9 cm above the median at 20 (163.3 cm).

Girls and boys at 15 years

Boys of the same age have a median of 170.1 cm, 8.2 cm above the girls' median. At 20 the gap between the two medians is 13.5 cm. The girls' median is higher than the boys' only from 10 years 9 months to 13 years 2 months.

When to talk to a doctor

If growth has slowed unexpectedly, a teen is crossing downward through percentile lines, or puberty seems unusually early or late, speak to a pediatrician or family doctor. A percentile on its own is not a diagnosis or a measure of health.

Reference values only, not medical advice. How these tables are built.