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Iowa

State in USA

Contents: Subdivision

The population development in Iowa as well as related information and services (Wikipedia, Google, images).

The Details icon links to further information about a selected division including its population structure (gender, age groups, age distribution, »race«, ethnicity).

NameStatusPopulation
Census
1990-04-01		Population
Census
2000-04-01		Population
Census
2010-04-01		Population
Estimate
2019-07-01
IowaState2,776,7552,926,3243,046,3553,159,596
AdairCounty8,4098,2437,6827,102
AdamsCounty4,8664,4824,0293,602
AllamakeeCounty13,85514,67514,33013,671
AppanooseCounty13,74313,72112,88712,525
AudubonCounty7,3346,8306,1195,491
BentonCounty22,42925,30826,07625,544
Black HawkCounty123,798128,012131,090131,089
BooneCounty25,18626,22426,30626,338
BremerCounty22,81323,32524,27625,170
BuchananCounty20,84421,09320,95821,148
Buena VistaCounty19,96520,41120,26019,690
ButlerCounty15,73115,30514,86714,404
CalhounCounty11,50811,1159,6709,616
CarrollCounty21,42321,42120,81620,118
CassCounty15,12814,68413,95612,822
CedarCounty17,38118,18718,49918,541
Cerro GordoCounty46,73346,44744,15142,477
CherokeeCounty14,09813,03512,07211,231
ChickasawCounty13,29513,09512,43911,943
ClarkeCounty8,2879,1339,2869,382
ClayCounty17,58517,37216,66716,094
ClaytonCounty19,05418,67818,12917,497
ClintonCounty51,04050,14949,11646,559
CrawfordCounty16,77516,94217,09616,903
DallasCounty29,75540,75066,13593,631
DavisCounty8,3128,5418,7539,006
DecaturCounty8,3388,6898,4577,852
DelawareCounty18,03518,40417,76417,057
Des MoinesCounty42,61442,35140,32539,051
DickinsonCounty14,90916,42416,66717,290
DubuqueCounty86,40389,14393,65397,432
EmmetCounty11,56911,02710,3029,224
FayetteCounty21,84322,00820,88019,575
FloydCounty17,05816,90016,30315,655
FranklinCounty11,36410,70410,68010,082
FremontCounty8,2268,0107,4416,917
GreeneCounty10,04510,3669,3368,881
GrundyCounty12,02912,36912,45312,227
GuthrieCounty10,93511,35310,95410,741
HamiltonCounty16,07116,43815,67314,797
HancockCounty12,63812,10011,34110,664
HardinCounty19,09418,81217,53416,809
HarrisonCounty14,73015,66614,92814,034
HenryCounty19,22620,33620,14519,835
HowardCounty9,8099,9329,5669,146
HumboldtCounty10,75610,3819,8159,499
IdaCounty8,3657,8377,0896,822
IowaCounty14,63015,67116,35516,146
JacksonCounty19,95020,29619,84819,375
JasperCounty34,79537,21336,84237,171
JeffersonCounty16,31016,18116,84318,180
JohnsonCounty96,119111,006130,882152,480
JonesCounty19,44420,22120,63820,634
KeokukCounty11,62411,40010,51110,192
KossuthCounty18,59117,16315,54314,769
LeeCounty38,68738,05235,86233,641
LinnCounty168,767191,701211,226227,241
LouisaCounty11,59212,18311,38711,059
LucasCounty9,0709,4228,8988,561
LyonCounty11,95211,76311,58111,806
MadisonCounty12,48314,01915,67916,273
MahaskaCounty21,52222,33522,38122,429
MarionCounty30,00132,05233,30933,280
MarshallCounty38,27639,31140,64839,472
MillsCounty13,20214,54715,05915,124
MitchellCounty10,92810,87410,77610,565
MononaCounty10,03410,0209,2438,626
MonroeCounty8,1148,0167,9707,681
MontgomeryCounty12,07611,77110,7409,917
MuscatineCounty39,90741,72242,74542,571
O'BrienCounty15,44415,10214,39813,796
OsceolaCounty7,2677,0036,4625,961
PageCounty16,87016,97615,93215,129
Palo AltoCounty10,66910,1479,4218,873
PlymouthCounty23,38824,84924,98625,200
PocahontasCounty9,5258,6627,3106,632
PolkCounty327,140374,601430,640491,031
PottawattamieCounty82,62887,70493,15893,405
PoweshiekCounty19,03318,81518,91418,458
RinggoldCounty5,4205,4695,1314,866
SacCounty12,32411,52910,3509,675
ScottCounty150,979158,668165,224173,400
ShelbyCounty13,23013,17312,16711,479
SiouxCounty29,90331,58933,70434,950
StoryCounty74,25279,98189,54297,441
TamaCounty17,41918,10317,76716,904
TaylorCounty7,1146,9586,3176,188
UnionCounty12,75012,30912,53412,224
Van BurenCounty7,6767,8097,5707,044
WapelloCounty35,68736,05135,62535,151
WarrenCounty36,03340,67146,22551,548
WashingtonCounty19,61220,67021,70422,030
WayneCounty7,0676,7306,4036,413
WebsterCounty40,34240,23538,01335,982
WinnebagoCounty12,12211,72310,86610,357
WinneshiekCounty20,84721,31021,05619,992
WoodburyCounty98,276103,877102,172103,132
WorthCounty7,9917,9097,5987,407
WrightCounty14,26914,33413,22912,551
USA [United States of America]Federal Republic248,709,873281,421,906308,745,538328,329,953

Source: U.S. Census Bureau (web).

Explanation: All population totals refer to 2020 boundaries.

Further information about the population structure:

Gender (E 2019)
Males1,571,075
Females1,583,995
Age Groups (E 2019)
0-14 years604,131
15-64 years1,997,985
65+ years552,954
Age Distribution (E 2019)
0-9 years395,792
10-19 years420,543
20-29 years430,266
30-39 years394,368
40-49 years361,158
50-59 years395,127
60-69 years381,748
70-79 years229,378
80+ years146,690
»Race« (E 2019)
White2,859,080
Black/African American128,105
Indigenous17,060
Asian84,119
Pacific Islander4,804
2 or more61,902
Ethnicity (E 2019)
Hispanic or Latino198,550
Other2,956,520

See also:

USA: Counties