RANKING · 2024 ACS · 99 SHOWN OF 99

Lowest fertility rate, Iowa counties

Iowa counties with the lowest 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

01Shelby County, IAIA11,68919.3–

02Jefferson County, IAIA15,29120.0–

03Story County, IAIA101,29126.6–

04Sac County, IAIA9,52528.9–

05Iowa County, IAIA16,50429.9–

06Clay County, IAIA16,20234.1–

07Hardin County, IAIA16,45536.4–

08Poweshiek County, IAIA18,36837.2–

09Mills County, IAIA14,79337.2–

10Johnson County, IAIA160,04437.2–

11Kossuth County, IAIA14,32237.9–

12Page County, IAIA14,85638.9–

13Bremer County, IAIA25,29642.9–

14Harrison County, IAIA14,62343.1–

15Floyd County, IAIA14,90143.2–

16Cass County, IAIA12,96043.5–

17Marion County, IAIA34,19243.5–

18Ida County, IAIA6,77744.0–

19Jasper County, IAIA38,15344.4–

20Des Moines County, IAIA38,07745.9–

21Pottawattamie County, IAIA92,99645.9–

22Emmet County, IAIA9,10747.7–

23Ringgold County, IAIA4,64247.8–

24Scott County, IAIA175,25948.2–

25Fremont County, IAIA6,52248.3–

26Plymouth County, IAIA25,69749.9–

27Dallas County, IAIA118,45751.0–

28Union County, IAIA11,82951.1–

29Worth County, IAIA7,33852.2–

30Louisa County, IAIA10,41653.5–

31Keokuk County, IAIA9,79753.6–

32Cedar County, IAIA18,35954.2–

33Franklin County, IAIA9,86855.0–

34Polk County, IAIA516,54655.2–

35Greene County, IAIA8,65856.7–

36Palo Alto County, IAIA8,89957.3–

37Adams County, IAIA3,61757.4–

38Warren County, IAIA57,33157.4–

39Allamakee County, IAIA14,23857.6–

40Linn County, IAIA232,02857.9–

41Monroe County, IAIA7,40658.1–

42Muscatine County, IAIA41,85358.4–

43Delaware County, IAIA17,67458.5–

44Winneshiek County, IAIA19,73358.7–

45Carroll County, IAIA20,30359.7–

46Mahaska County, IAIA21,88059.8–

47Woodbury County, IAIA106,64961.4–

48Henry County, IAIA19,34961.4–

49Benton County, IAIA26,00461.6–

50Marshall County, IAIA39,89061.7–

51Webster County, IAIA36,83861.9–

52Dickinson County, IAIA18,07762.2–

53Mitchell County, IAIA10,65062.6–

54Van Buren County, IAIA7,13162.7–

55Black Hawk County, IAIA131,53262.9–

56Adair County, IAIA7,40363.1–

57Appanoose County, IAIA12,07763.6–

58Dubuque County, IAIA99,38164.1–

59Boone County, IAIA26,79967.3–

60Jackson County, IAIA19,28867.9–

61Madison County, IAIA17,27068.3–

62Pocahontas County, IAIA6,81968.9–

63Wright County, IAIA12,80168.9–

64Washington County, IAIA22,66769.4–

65Buchanan County, IAIA20,88369.9–

66Clinton County, IAIA46,00270.1–

67Taylor County, IAIA5,83571.3–

68Wapello County, IAIA35,21071.5–

69Lyon County, IAIA12,35471.8–

70Decatur County, IAIA7,65572.0–

71Lucas County, IAIA8,84772.1–

72Winnebago County, IAIA10,25172.2–

73Calhoun County, IAIA9,56272.7–

74Guthrie County, IAIA10,78273.4–

75Montgomery County, IAIA10,00275.3–

76Fayette County, IAIA19,04775.7–

77Osceola County, IAIA5,98076.6–

78Jones County, IAIA21,25377.6–

79Crawford County, IAIA16,23779.2–

80Cherokee County, IAIA11,36980.6–

81Grundy County, IAIA12,36180.8–

82Buena Vista County, IAIA20,44981.7–

83Humboldt County, IAIA9,40982.9–

84O'Brien County, IAIA14,22082.9–

85Hancock County, IAIA10,52884.7–

86Chickasaw County, IAIA11,66385.7–

87Monona County, IAIA8,53985.9–

88Clayton County, IAIA16,84592.6–

89Davis County, IAIA9,23092.6–

90Hamilton County, IAIA14,94492.7–

91Howard County, IAIA9,41593.2–

92Butler County, IAIA14,04994.3–

93Sioux County, IAIA36,77495.6–

94Lee County, IAIA32,30697.7–

95Tama County, IAIA16,79699.8–

96Cerro Gordo County, IAIA42,372102.9–

97Audubon County, IAIA5,509108.7–

98Wayne County, IAIA6,738109.1–

99Clarke County, IAIA9,574210.8–

SHOWING 1–99 OF 99

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