Chapter 3 Population Geography - W.H. Freeman

90 Chapter 3 Population Geography
80+ 80+
75–79 75–79
70–74 70–74
65–69 65–69
60–64 60–64
55–59 55–59
50–54 50–54
45–49 45–49
40–44 40–44
35–39 35–39
30–34 30–34
25–29 25–29
20–24 20–24
15–19 15–19
10–14 10–14
5–9 5–9
0–4 0–4
20 20
World World Population
United United States States Population
Males Males
10 10 0 0
Females
10 10 20 20
80+ 80+
75–79 75–79
70–74 70–74
65–69 65–69
60–64 60–64
55–59 55–59
50–54 50–54
45–49 45–49
40–44 40–44
35–39 35–39
30–34 30–34
25–29 25–29
20–24 20–24
15–19 15–19
10–14 10–14
5–9 5–9
0–4 0–4
20 20
Males Males
10 10 0 0
Females
10 10
Percentage
Percentage
20 20
80+ 80+
75–79 75–79
70–74 70–74
65–69 65–69
60–64 60–64
55–59 55–59
50–54 50–54
45–49 45–49
40–44 40–44
35–39 35–39
30–34 30–34
25–29 25–29
20–24 20–24
15–19 15–19
10–14 10–14
5–9 5–9
0–4 0–4
20 20
Sun Sun City, City, AZ, AZ, Population
Males Males
Females
80+ 80+
75–79 75–79
70–74 70–74
65–69 65–69
60–64 60–64
55–59 55–59
50–54 50–54
45–49 45–49
40–44 40–44
35–39 35–39
30–34 30–34
25–29 25–29
20–24 20–24
15–19 15–19
10–14 10–14
5–9 5–9
0–4 0–4
10 10 0 0 10 10 20 20
20 20
Percentage
Tanzania Population
Males Males
Females
10 10 0 0 10 10
Percentage
20 20
80+ 80+
75–79 75–79
70–74 70–74
65–69 65–69
60–64 60–64
55–59 55–59
50–54 50–54
45–49 45–49
40–44 40–44
35–39 35–39
30–34 30–34
25–29 25–29
20–24 20–24
15–19 15–19
10–14 10–14
5–9 5–9
0–4 0–4
20 20
China China Population
Males Males
Females
10 10 0 0 10 10
Percentage
20 20
Figure 3.12 Population pyramids for the world and selected countries and communities.
Tanzania displays the classic stepped pyramid of a rapidly expanding population, whereas the U.S.
pyramid looks more like a precariously balanced pillar. China’s population pyramid reflects the
lowered numbers of young people as a result of that country’s one-child policy. How do these
pyramids help predict future population growth? (Source: Population Reference Bureau.)