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 (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

01Shelby County, IAIA11,68919.3−75%

02Jefferson County, IAIA15,29120.0−44%

03Story County, IAIA101,29126.6−39%

04Sac County, IAIA9,52528.9−63%

05Iowa County, IAIA16,50429.9−56%

06Clay County, IAIA16,20234.1−45%

07Hardin County, IAIA16,45536.4−50%

08Poweshiek County, IAIA18,36837.2−3%

09Mills County, IAIA14,79337.2−34%

10Johnson County, IAIA160,04437.2−24%

11Kossuth County, IAIA14,32237.9−29%

12Page County, IAIA14,85638.9−39%

13Bremer County, IAIA25,29642.9−19%

14Harrison County, IAIA14,62343.1−8%

15Floyd County, IAIA14,90143.2−46%

16Cass County, IAIA12,96043.5−38%

17Marion County, IAIA34,19243.5−15%

18Ida County, IAIA6,77744.0−37%

19Jasper County, IAIA38,15344.4−29%

20Des Moines County, IAIA38,07745.9−35%

21Pottawattamie County, IAIA92,99645.9−28%

22Emmet County, IAIA9,10747.7−18%

23Ringgold County, IAIA4,64247.8−44%

24Scott County, IAIA175,25948.2−18%

25Fremont County, IAIA6,52248.3−35%

26Plymouth County, IAIA25,69749.9−18%

27Dallas County, IAIA118,45751.0−36%

28Union County, IAIA11,82951.1+30%

29Worth County, IAIA7,33852.2−48%

30Louisa County, IAIA10,41653.5−12%

31Keokuk County, IAIA9,79753.6+17%

32Cedar County, IAIA18,35954.2+4%

33Franklin County, IAIA9,86855.0+22%

34Polk County, IAIA516,54655.2−4%

35Greene County, IAIA8,65856.7−45%

36Palo Alto County, IAIA8,89957.3+21%

37Adams County, IAIA3,61757.4−43%

38Warren County, IAIA57,33157.4+31%

39Allamakee County, IAIA14,23857.6+8%

40Linn County, IAIA232,02857.9−5%

41Monroe County, IAIA7,40658.1−42%

42Muscatine County, IAIA41,85358.4+16%

43Delaware County, IAIA17,67458.5+20%

44Winneshiek County, IAIA19,73358.7+55%

45Carroll County, IAIA20,30359.7−25%

46Mahaska County, IAIA21,88059.8−33%

47Woodbury County, IAIA106,64961.4−5%

48Henry County, IAIA19,34961.4−20%

49Benton County, IAIA26,00461.6−4%

50Marshall County, IAIA39,89061.7−10%

51Webster County, IAIA36,83861.9+39%

52Dickinson County, IAIA18,07762.2−14%

53Mitchell County, IAIA10,65062.6−34%

54Van Buren County, IAIA7,13162.7−36%

55Black Hawk County, IAIA131,53262.9+6%

56Adair County, IAIA7,40363.1+31%

57Appanoose County, IAIA12,07763.6−24%

58Dubuque County, IAIA99,38164.1−16%

59Boone County, IAIA26,79967.3−22%

60Jackson County, IAIA19,28867.9+48%

61Madison County, IAIA17,27068.3+125%

62Pocahontas County, IAIA6,81968.9+81%

63Wright County, IAIA12,80168.9−38%

64Washington County, IAIA22,66769.4+0%

65Buchanan County, IAIA20,88369.9+2%

66Clinton County, IAIA46,00270.1+37%

67Taylor County, IAIA5,83571.3+38%

68Wapello County, IAIA35,21071.5+8%

69Lyon County, IAIA12,35471.8−24%

70Decatur County, IAIA7,65572.0+103%

71Lucas County, IAIA8,84772.1+0%

72Winnebago County, IAIA10,25172.2+138%

73Calhoun County, IAIA9,56272.7−1%

74Guthrie County, IAIA10,78273.4+64%

75Montgomery County, IAIA10,00275.3+20%

76Fayette County, IAIA19,04775.7+1%

77Osceola County, IAIA5,98076.6+33%

78Jones County, IAIA21,25377.6+30%

79Crawford County, IAIA16,23779.2−1%

80Cherokee County, IAIA11,36980.6+58%

81Grundy County, IAIA12,36180.8+13%

82Buena Vista County, IAIA20,44981.7+22%

83Humboldt County, IAIA9,40982.9+141%

84O'Brien County, IAIA14,22082.9−3%

85Hancock County, IAIA10,52884.7+118%

86Chickasaw County, IAIA11,66385.7+7%

87Monona County, IAIA8,53985.9+35%

88Clayton County, IAIA16,84592.6+32%

89Davis County, IAIA9,23092.6−3%

90Hamilton County, IAIA14,94492.7+34%

91Howard County, IAIA9,41593.2+30%

92Butler County, IAIA14,04994.3+77%

93Sioux County, IAIA36,77495.6+55%

94Lee County, IAIA32,30697.7+75%

95Tama County, IAIA16,79699.8+56%

96Cerro Gordo County, IAIA42,372102.9+81%

97Audubon County, IAIA5,509108.7+144%

98Wayne County, IAIA6,738109.1+75%

99Clarke County, IAIA9,574210.8+634%

SHOWING 1–99 OF 99

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