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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, urbanization, »race«, ethnicity).

NameStatusPopulation
Census
1990-04-01		Population
Census
2000-04-01		Population
Census
2010-04-01		Population
Census
2020-04-01		Population
Estimate
2022-07-01
IowaState2,776,7552,926,3243,046,3553,190,3693,200,517
AdairCounty8,4098,2437,6827,4967,494
AdamsCounty4,8664,4824,0293,7043,611
AllamakeeCounty13,85514,67514,33014,06113,960
AppanooseCounty13,74313,72112,88712,31712,094
AudubonCounty7,3346,8306,1195,6745,598
BentonCounty22,42925,30826,07625,57525,711
Black HawkCounty123,798128,012131,090131,144130,274
BooneCounty25,18626,22426,30626,71526,609
BremerCounty22,81323,32524,27624,98825,259
BuchananCounty20,84421,09320,95820,56520,714
Buena VistaCounty19,96520,41120,26020,82320,600
ButlerCounty15,73115,30514,86714,33414,269
CalhounCounty11,50811,1159,6709,9279,725
CarrollCounty21,42321,42120,81620,76020,567
CassCounty15,12814,68413,95613,12713,104
CedarCounty17,38118,18718,49918,50518,399
Cerro GordoCounty46,73346,44744,15143,12742,409
CherokeeCounty14,09813,03512,07211,65811,491
ChickasawCounty13,29513,09512,43912,01211,716
ClarkeCounty8,2879,1339,2869,7489,692
ClayCounty17,58517,37216,66716,38416,475
ClaytonCounty19,05418,67818,12917,04317,027
ClintonCounty51,04050,14949,11646,46046,344
CrawfordCounty16,77516,94217,09616,52516,123
DallasCounty29,75540,75066,13599,678108,016
DavisCounty8,3128,5418,7539,1109,130
DecaturCounty8,3388,6898,4577,6457,683
DelawareCounty18,03518,40417,76417,48817,568
Des MoinesCounty42,61442,35140,32538,91038,293
DickinsonCounty14,90916,42416,66717,70318,028
DubuqueCounty86,40389,14393,65399,26698,677
EmmetCounty11,56911,02710,3029,3889,176
FayetteCounty21,84322,00820,88019,50919,294
FloydCounty17,05816,90016,30315,62715,337
FranklinCounty11,36410,70410,68010,0199,916
FremontCounty8,2268,0107,4416,6056,464
GreeneCounty10,04510,3669,3368,7718,741
GrundyCounty12,02912,36912,45312,32912,356
GuthrieCounty10,93511,35310,95410,62310,647
HamiltonCounty16,07116,43815,67315,03914,820
HancockCounty12,63812,10011,34110,79510,685
HardinCounty19,09418,81217,53416,87816,567
HarrisonCounty14,73015,66614,92814,58214,658
HenryCounty19,22620,33620,14520,48220,196
HowardCounty9,8099,9329,5669,4699,533
HumboldtCounty10,75610,3819,8159,5979,572
IdaCounty8,3657,8377,0897,0056,888
IowaCounty14,63015,67116,35516,66216,475
JacksonCounty19,95020,29619,84819,48519,324
JasperCounty34,79537,21336,84237,81337,938
JeffersonCounty16,31016,18116,84315,66315,698
JohnsonCounty96,119111,006130,882152,854156,420
JonesCounty19,44420,22120,63820,64620,848
KeokukCounty11,62411,40010,51110,0339,904
KossuthCounty18,59117,16315,54314,82814,475
LeeCounty38,68738,05235,86233,55532,840
LinnCounty168,767191,701211,226230,299229,033
LouisaCounty11,59212,18311,38710,83710,677
LucasCounty9,0709,4228,8988,6348,689
LyonCounty11,95211,76311,58111,93412,179
MadisonCounty12,48314,01915,67916,54817,036
MahaskaCounty21,52222,33522,38122,19021,946
MarionCounty30,00132,05233,30933,41433,642
MarshallCounty38,27639,31140,64840,10539,879
MillsCounty13,20214,54715,05914,48414,553
MitchellCounty10,92810,87410,77610,56510,532
MononaCounty10,03410,0209,2438,7518,486
MonroeCounty8,1148,0167,9707,5777,550
MontgomeryCounty12,07611,77110,74010,33010,205
MuscatineCounty39,90741,72242,74543,23542,377
O'BrienCounty15,44415,10214,39814,18214,060
OsceolaCounty7,2677,0036,4626,1926,036
PageCounty16,87016,97615,93215,21115,143
Palo AltoCounty10,66910,1479,4218,9968,764
PlymouthCounty23,38824,84924,98625,69825,681
PocahontasCounty9,5258,6627,3107,0787,053
PolkCounty327,140374,601430,640492,401501,089
PottawattamieCounty82,62887,70493,15893,66793,173
PoweshiekCounty19,03318,81518,91418,66218,467
RinggoldCounty5,4205,4695,1314,6634,670
SacCounty12,32411,52910,3509,8149,673
ScottCounty150,979158,668165,224174,669173,924
ShelbyCounty13,23013,17312,16711,74611,645
SiouxCounty29,90331,58933,70435,87236,050
StoryCounty74,25279,98189,54298,53799,673
TamaCounty17,41918,10317,76717,13516,903
TaylorCounty7,1146,9586,3175,8965,858
UnionCounty12,75012,30912,53412,13811,887
Van BurenCounty7,6767,8097,5707,2037,256
WapelloCounty35,68736,05135,62535,43735,043
WarrenCounty36,03340,67146,22552,40354,327
WashingtonCounty19,61220,67021,70422,56522,571
WayneCounty7,0676,7306,4036,4976,467
WebsterCounty40,34240,23538,01336,99936,626
WinnebagoCounty12,12211,72310,86610,67910,617
WinneshiekCounty20,84721,31021,05620,07019,974
WoodburyCounty98,276103,877102,172105,941105,671
WorthCounty7,9917,9097,5987,4437,319
WrightCounty14,26914,33413,22912,94312,681
USA [United States of America]Federal Republic248,709,873281,421,906308,745,538331,449,281333,287,557

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

Explanation: All population totals refer to 2020 or 2022 boundaries.

Further information about the population structure:

Gender (C 2020)
Males1,586,092
Females1,604,277
Age Groups (C 2020)
0-17 years740,266
18-64 years1,875,650
65+ years574,453
Age Distribution (C 2020)
0-9 years395,931
10-19 years437,185
20-29 years414,206
30-39 years402,483
40-49 years361,951
50-59 years393,425
60-69 years396,700
70-79 years242,360
80+ years146,128
Urbanization (C 2020)
Rural1,175,538
Urban2,014,831
»Race« (C 2020)
White2,694,521
Black/African American131,972
Indigenous14,486
Asian75,629
Pacific Islander5,758
Some other88,720
2 or more179,283
Ethnicity (C 2020)
Hispanic or Latino215,986
Other2,974,383

See also:

USA: Counties