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 (2023 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 2000

01Clarke County, IAIA9,574210.8–

02Wayne County, IAIA6,738109.1–

03Audubon County, IAIA5,509108.7–

04Cerro Gordo County, IAIA42,372102.9–

05Tama County, IAIA16,79699.8–

06Lee County, IAIA32,30697.7–

07Sioux County, IAIA36,77495.6–

08Butler County, IAIA14,04994.3–

09Howard County, IAIA9,41593.2–

10Hamilton County, IAIA14,94492.7–

11Davis County, IAIA9,23092.6–

12Clayton County, IAIA16,84592.6–

13Monona County, IAIA8,53985.9–

14Chickasaw County, IAIA11,66385.7–

15Hancock County, IAIA10,52884.7–

16O'Brien County, IAIA14,22082.9–

17Humboldt County, IAIA9,40982.9–

18Buena Vista County, IAIA20,44981.7–

19Grundy County, IAIA12,36180.8–

20Cherokee County, IAIA11,36980.6–

21Crawford County, IAIA16,23779.2–

22Jones County, IAIA21,25377.6–

23Osceola County, IAIA5,98076.6–

24Fayette County, IAIA19,04775.7–

25Montgomery County, IAIA10,00275.3–

26Guthrie County, IAIA10,78273.4–

27Calhoun County, IAIA9,56272.7–

28Winnebago County, IAIA10,25172.2–

29Lucas County, IAIA8,84772.1–

30Decatur County, IAIA7,65572.0–

31Lyon County, IAIA12,35471.8–

32Wapello County, IAIA35,21071.5–

33Taylor County, IAIA5,83571.3–

34Clinton County, IAIA46,00270.1–

35Buchanan County, IAIA20,88369.9–

36Washington County, IAIA22,66769.4–

37Wright County, IAIA12,80168.9–

38Pocahontas County, IAIA6,81968.9–

39Madison County, IAIA17,27068.3–

40Jackson County, IAIA19,28867.9–

41Boone County, IAIA26,79967.3–

42Dubuque County, IAIA99,38164.1–

43Appanoose County, IAIA12,07763.6–

44Adair County, IAIA7,40363.1–

45Black Hawk County, IAIA131,53262.9–

46Van Buren County, IAIA7,13162.7–

47Mitchell County, IAIA10,65062.6–

48Dickinson County, IAIA18,07762.2–

49Webster County, IAIA36,83861.9–

50Marshall County, IAIA39,89061.7–

51Benton County, IAIA26,00461.6–

52Henry County, IAIA19,34961.4–

53Woodbury County, IAIA106,64961.4–

54Mahaska County, IAIA21,88059.8–

55Carroll County, IAIA20,30359.7–

56Winneshiek County, IAIA19,73358.7–

57Delaware County, IAIA17,67458.5–

58Muscatine County, IAIA41,85358.4–

59Monroe County, IAIA7,40658.1–

60Linn County, IAIA232,02857.9–

61Allamakee County, IAIA14,23857.6–

62Warren County, IAIA57,33157.4–

63Adams County, IAIA3,61757.4–

64Palo Alto County, IAIA8,89957.3–

65Greene County, IAIA8,65856.7–

66Polk County, IAIA516,54655.2–

67Franklin County, IAIA9,86855.0–

68Cedar County, IAIA18,35954.2–

69Keokuk County, IAIA9,79753.6–

70Louisa County, IAIA10,41653.5–

71Worth County, IAIA7,33852.2–

72Union County, IAIA11,82951.1–

73Dallas County, IAIA118,45751.0–

74Plymouth County, IAIA25,69749.9–

75Fremont County, IAIA6,52248.3–

76Scott County, IAIA175,25948.2–

77Ringgold County, IAIA4,64247.8–

78Emmet County, IAIA9,10747.7–

79Pottawattamie County, IAIA92,99645.9–

80Des Moines County, IAIA38,07745.9–

81Jasper County, IAIA38,15344.4–

82Ida County, IAIA6,77744.0–

83Marion County, IAIA34,19243.5–

84Cass County, IAIA12,96043.5–

85Floyd County, IAIA14,90143.2–

86Harrison County, IAIA14,62343.1–

87Bremer County, IAIA25,29642.9–

88Page County, IAIA14,85638.9–

89Kossuth County, IAIA14,32237.9–

90Johnson County, IAIA160,04437.2–

91Mills County, IAIA14,79337.2–

92Poweshiek County, IAIA18,36837.2–

93Hardin County, IAIA16,45536.4–

94Clay County, IAIA16,20234.1–

95Iowa County, IAIA16,50429.9–

96Sac County, IAIA9,52528.9–

97Story County, IAIA101,29126.6–

98Jefferson County, IAIA15,29120.0–

99Shelby County, IAIA11,68919.3–

SHOWING 1–99 OF 99

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES