Population Pyramids of Iowa Percent of Total Population 2000
Male Female
2020
85+ 80 - 84 75 - 79 70 - 74 65 - 69 60 - 64 55 - 59 50 - 54 45 - 49 40 - 44 35 - 39 30 - 34 25 - 29 20 - 24 15 - 19 10 - 14 5-9 0-4 5
Male Female
5
4
3
2
1
0
1
2
3
4
5
4
3
2
1
0
1
2
3
4
5
Age Group Total 0-4 5-9 10 - 14 15 - 19 20 - 24 25 - 29 30 - 34 35 - 39 40 - 44 45 - 49 50 - 54 55 - 59 60 - 64 65 - 69 70 - 74 75 - 79 80 - 84 85+ Under 18 5-17 18-24 25-44 45-64 65+ Total 2,926,324 188,413 202,603 210,547 226,420 203,663 177,259 185,801 217,897 227,302 212,663 180,131 139,052 118,360 107,373 104,562 91,505 67,655 65,118 733,638 545,225 298,008 808,259 650,206 436,213
Census 2000 Number Male Female 1,435,515 1,490,809 96,723 91,690 103,822 98,781 108,101 102,446 115,776 110,644 103,903 99,760 90,258 87,001 94,579 91,222 108,817 109,080 113,795 113,507 107,360 105,303 90,248 89,883 68,307 70,745 56,829 61,531 49,643 57,730 46,748 57,814 37,868 53,637 24,765 42,890 17,973 47,145 376,710 279,987 151,615 407,449 322,744 176,997 2000 36.6 35.2 38.0 76.1 49.8 26.2 356,928 265,238 146,393 400,810 327,462 259,216 2020 40.1 39.0 41.2 78.7 45.8 32.9
Percent Total 100.0 6.4 6.9 7.2 7.7 7.0 6.1 6.3 7.4 7.8 7.3 6.2 4.8 4.0 3.7 3.6 3.1 2.3 2.2 25.1 18.6 10.2 27.6 22.2 14.9 Change 3.4 3.8 3.2 2.7 -4.0 6.7
Total 3,020,496 185,929 193,484 199,924 194,504 178,436 175,467 179,141 199,755 201,314 179,133 181,245 198,798 196,826 172,174 135,510 91,636 65,912 91,308 697,369 511,440 254,908 755,677 756,002 556,540
Projection 2020 Number Male 1,489,687 94,447 98,169 101,476 98,854 91,490 89,670 91,406 101,828 102,344 91,037 92,169 98,744 96,653 83,279 63,477 40,175 26,406 28,063 354,060 259,613 130,376 385,248 378,603 241,400
Female 1,530,809 91,482 95,315 98,448 95,650 86,946 85,797 87,735 97,927 98,970 88,096 89,076 100,054 100,173 88,895 72,033 51,461 39,506 63,245 343,309 251,827 124,532 370,429 377,399 315,140
Percent Total 100.0 6.2 6.4 6.6 6.4 5.9 5.8 5.9 6.6 6.7 5.9 6.0 6.6 6.5 5.7 4.5 3.0 2.2 3.0 23.1 16.9 8.4 25.0 25.0 18.4 2000 30.8 96.3 105.5 100.8 75.0 38.1
2000 - 2020 Change Total Number Percent 94,172 3.2 -2,484 -1.3 -9,119 -4.5 -10,623 -5.0 -31,916 -14.1 -25,227 -12.4 -1,792 -1.0 -6,660 -3.6 -18,142 -8.3 -25,988 -11.4 -33,530 -15.8 1,114 0.6 59,746 43.0 78,466 66.3 64,801 60.4 30,948 29.6 131 0.1 -1,743 -2.6 26,190 40.2 -36,269 -33,785 -43,100 -52,582 105,796 120,327 2020 33.6 97.3 103.1 102.5 84.7 44.4 -4.9 -6.2 -14.5 -6.5 16.3 27.6 Change 2.8 1.0 -2.4 1.7 9.7 6.2
Demographic Indicator Median Age Male Female Dependency Ratio (1) Youth (2) Old Age (3)
Demographic Indicator Child-Women Ratio (4) Sex Ratio (5) Under 18 18-64 65-84 85+
(1) Dependency Ratio = (Age under 20 + Age 65 and over) / (Age 20-64) X 100 (2) Youth dependency ratio = Age under 20 / Age 20- 64 X 100 (3) Old age dependency ratio = Age 65 and over / Age 20 - 64 X100
(4) Child-Women ratio = Age under 5 / Female 15 - 44 X 100 (5) Sex Ratio = Male / Female X 100
Source: U.S. Census Bureau, Population Division, Interim State Population Projections, 2005 Internet Release Date: April 21, 2005