RANKING · 2024 ACS · 99 SHOWN OF 99

Highest fertility rate, Iowa counties

Iowa counties ranked by general fertility rate — births per 1,000 women ages 15-50 in the past 12 months (2024 ACS). This list covers the 99 counties in Iowa that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

YEAR2010 2024

RANKPLACESTATEPOPBIRTHS PER 1,000 WOMEN (15-50)VS 2010

01Clarke County, IAIA9,574210.8+634%

02Wayne County, IAIA6,738109.1+75%

03Audubon County, IAIA5,509108.7+144%

04Cerro Gordo County, IAIA42,372102.9+81%

05Tama County, IAIA16,79699.8+56%

06Lee County, IAIA32,30697.7+75%

07Sioux County, IAIA36,77495.6+55%

08Butler County, IAIA14,04994.3+77%

09Howard County, IAIA9,41593.2+30%

10Hamilton County, IAIA14,94492.7+34%

11Davis County, IAIA9,23092.6−3%

12Clayton County, IAIA16,84592.6+32%

13Monona County, IAIA8,53985.9+35%

14Chickasaw County, IAIA11,66385.7+7%

15Hancock County, IAIA10,52884.7+118%

16O'Brien County, IAIA14,22082.9−3%

17Humboldt County, IAIA9,40982.9+141%

18Buena Vista County, IAIA20,44981.7+22%

19Grundy County, IAIA12,36180.8+13%

20Cherokee County, IAIA11,36980.6+58%

21Crawford County, IAIA16,23779.2−1%

22Jones County, IAIA21,25377.6+30%

23Osceola County, IAIA5,98076.6+33%

24Fayette County, IAIA19,04775.7+1%

25Montgomery County, IAIA10,00275.3+20%

26Guthrie County, IAIA10,78273.4+64%

27Calhoun County, IAIA9,56272.7−1%

28Winnebago County, IAIA10,25172.2+138%

29Lucas County, IAIA8,84772.1+0%

30Decatur County, IAIA7,65572.0+103%

31Lyon County, IAIA12,35471.8−24%

32Wapello County, IAIA35,21071.5+8%

33Taylor County, IAIA5,83571.3+38%

34Clinton County, IAIA46,00270.1+37%

35Buchanan County, IAIA20,88369.9+2%

36Washington County, IAIA22,66769.4+0%

37Wright County, IAIA12,80168.9−38%

38Pocahontas County, IAIA6,81968.9+81%

39Madison County, IAIA17,27068.3+125%

40Jackson County, IAIA19,28867.9+48%

41Boone County, IAIA26,79967.3−22%

42Dubuque County, IAIA99,38164.1−16%

43Appanoose County, IAIA12,07763.6−24%

44Adair County, IAIA7,40363.1+31%

45Black Hawk County, IAIA131,53262.9+6%

46Van Buren County, IAIA7,13162.7−36%

47Mitchell County, IAIA10,65062.6−34%

48Dickinson County, IAIA18,07762.2−14%

49Webster County, IAIA36,83861.9+39%

50Marshall County, IAIA39,89061.7−10%

51Benton County, IAIA26,00461.6−4%

52Henry County, IAIA19,34961.4−20%

53Woodbury County, IAIA106,64961.4−5%

54Mahaska County, IAIA21,88059.8−33%

55Carroll County, IAIA20,30359.7−25%

56Winneshiek County, IAIA19,73358.7+55%

57Delaware County, IAIA17,67458.5+20%

58Muscatine County, IAIA41,85358.4+16%

59Monroe County, IAIA7,40658.1−42%

60Linn County, IAIA232,02857.9−5%

61Allamakee County, IAIA14,23857.6+8%

62Warren County, IAIA57,33157.4+31%

63Adams County, IAIA3,61757.4−43%

64Palo Alto County, IAIA8,89957.3+21%

65Greene County, IAIA8,65856.7−45%

66Polk County, IAIA516,54655.2−4%

67Franklin County, IAIA9,86855.0+22%

68Cedar County, IAIA18,35954.2+4%

69Keokuk County, IAIA9,79753.6+17%

70Louisa County, IAIA10,41653.5−12%

71Worth County, IAIA7,33852.2−48%

72Union County, IAIA11,82951.1+30%

73Dallas County, IAIA118,45751.0−36%

74Plymouth County, IAIA25,69749.9−18%

75Fremont County, IAIA6,52248.3−35%

76Scott County, IAIA175,25948.2−18%

77Ringgold County, IAIA4,64247.8−44%

78Emmet County, IAIA9,10747.7−18%

79Pottawattamie County, IAIA92,99645.9−28%

80Des Moines County, IAIA38,07745.9−35%

81Jasper County, IAIA38,15344.4−29%

82Ida County, IAIA6,77744.0−37%

83Marion County, IAIA34,19243.5−15%

84Cass County, IAIA12,96043.5−38%

85Floyd County, IAIA14,90143.2−46%

86Harrison County, IAIA14,62343.1−8%

87Bremer County, IAIA25,29642.9−19%

88Page County, IAIA14,85638.9−39%

89Kossuth County, IAIA14,32237.9−29%

90Johnson County, IAIA160,04437.2−24%

91Mills County, IAIA14,79337.2−34%

92Poweshiek County, IAIA18,36837.2−3%

93Hardin County, IAIA16,45536.4−50%

94Clay County, IAIA16,20234.1−45%

95Iowa County, IAIA16,50429.9−56%

96Sac County, IAIA9,52528.9−63%

97Story County, IAIA101,29126.6−39%

98Jefferson County, IAIA15,29120.0−44%

99Shelby County, IAIA11,68919.3−75%

SHOWING 1–99 OF 99

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES