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Population Pyramids

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Page 1: Rectangular pyramid Triangular pyramid Pentagonal pyramid

Population Pyramids

Page 2: Rectangular pyramid Triangular pyramid Pentagonal pyramid

FRA

NC

E’S

PO

PU

LATIO

N

PYR

AM

ID

Rectangular pyramid

Page 3: Rectangular pyramid Triangular pyramid Pentagonal pyramid

KEN

YA’S

PO

PU

LATIO

N PY

RA

MID

Triangular pyramid

Page 4: Rectangular pyramid Triangular pyramid Pentagonal pyramid

PO

LAN

D’S

PO

PU

LATIO

N

PYR

AM

ID

Pentagonal pyramid

Page 5: Rectangular pyramid Triangular pyramid Pentagonal pyramid

Com

pare

the d

ata

of th

e th

ree

cou

ntrie

s. How

are

they sim

ilar?

How

are

they d

iffere

nt?

The only thing similar in the three countries’ data is that the populations are comprised of

men and women. Each country follows a different growth pattern. France is in the shape of a rectangle, which means slow

growth, Kenya is triangular in shape, which means rapid growth, and Poland is

pentagonal in shape, meaning a declining population.

Page 6: Rectangular pyramid Triangular pyramid Pentagonal pyramid

Population pyramids in the shape of wide-bottomed triangles indicate a high birth rate and a lower death rate and slightly higher life expectancy than triangular

pyramids. We can conclude that countries with a moderately growing population are

economically developing. Mexico, for instance, is not fully developed and the

quality of life spreads unevenly throughout the nation. So while most of the

population has access to contraceptives and good healthcare, there’s still a portion of Mexico who do not have this access and

are living in poor conditions.

What

con

clusi

on

s ca

n y

ou d

raw

ab

ou

t th

e c

hara

cteri

stic

s of

rapid

ly g

row

ing

cou

ntr

ies,

co

untr

ies

wit

h m

od

era

te g

row

th,

an

d s

hri

nki

ng c

oun

trie

s? Triangular population pyramids, such as Kenya’s, indicate a high birth and death rate, and a short life expectancy. We can

conclude that countries with a rapidly growing population are economically

under-developed and that the high birth and death rate and short life expectancy

are probably due to little access to contraceptives and good healthcare and poor living conditions such as a lack of

clean water, little fertile land, etc.

Pentagonal population pyramids, such as Poland’s, indicate a low birth and death rate and a long life expectancy. We can conclude that countries with a shrinking population are economically developed with a high literacy rate, easy access to

contraceptives and good healthcare, and have favorable living conditions.

Page 7: Rectangular pyramid Triangular pyramid Pentagonal pyramid

In counties like Kenya, programs offering health services, contraception, and education

usually take a couple years just to take off the ground. So in 5 years, Kenya’s birth and death rate and life expectancy will probably be around the same, resulting in a similar

shape as it is now. In 10 years, the birth and death rate will go down and life expectancy might lengthen but not significantly. So the only thing noticeably different might be that the little bulge has flattened. In 50 years, it’s probable that Kenya might start to have an

outlook similar to Mexico’s with a wide-bottomed triangle population pyramid

indicating a lower death rate, higher life expectancy, moderate population growth,

and a developing economy.

Base

d o

n th

e d

ata

in y

ou

r p

yra

mid

, wh

at m

igh

t you e

xp

ect

the p

yra

mid

to lo

ok like

in fi

ve

years? In

10

years? In

50

years?

France is an economically developed country, which is currently in the slow

growth stage. For the next 5 and 10 years, France’s population pyramid will probably look the same. Within 50 years, we can assume there will be improvements in

medicine and technology, so the pyramid will continue to be in the shape of a

rectangle, but with a larger population of older citizens, indicating the lengthened

life expectancy improvements in medicine support.

Poland, like France, is an economically developed country but in the declining

growth stage. For the next 5 and 10 years, we can predict that the population

pyramid will look similar, but showing signs of changing due to advances in medicine and the modernization of its

healthcare system. In 50 years, the pyramid will most likely be in the shape of

a rectangle, indicating a slow growth.

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Use

the p

op

ula

tion

pyra

mid

s to

make

pre

dictio

ns a

bou

t each

co

untry

’s futu

re. W

hat p

roble

ms

mig

ht e

ach

cou

ntry

face

if its p

opu

latio

n tre

nd

s contin

ue?

France’s future includes a never-ending growth in its population. Kenya’s future

looks bumpy. Though it’s possible for them to begin on the road to economic

development, it will probably take several decades and radical changes to its culture

and government. Poland’s future looks bright. Instead of declining, Poland will probably evolve into a slowly growing

population.

France and Poland could possibly run into trouble trying support such a large

and ever-growing population with healthcare, food, natural resources, etc.

Kenya’s problems include a lack of resources and medical care to decrease

the death rate and lengthen life expectancy.

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France’s pyramid structure implies that the country is economically developed and most, if

not all, of the population lives in favorable living conditions with easy access to good

healthcare, the ability to read and write, and a high life expectancy. Kenya’s pyramid structure

implies that the country is young and economically under-developed with the percent of the dependent population being significantly

larger than the percent of the workers supporting them. This also leads to the

conclusion that the birth and death rate is high and the life expectancy is short. Poland’s

pyramid structure also implies that the country economically developed and very similar to

France's population.

What a

re th

e im

plica

tions o

f each

ty

pe o

f pyra

mid

structu

re?

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I think Florida would have a rectangular population pyramid with a high percentage of dependents. This is because Florida is mainly a tourist and

retirement state attracting families with children and elderly people ready

to retire.

Th

ink a

bou

t the d

em

og

rap

hics o

f your to

wn o

r state

. Wh

at sh

ape d

o

you th

ink a

pop

ula

tion p

yra

mid

of

your to

wn o

r state

wou

ld h

ave a

nd

why?

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That’s a wrap!