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Newest housing stock, Iowa counties · 2010

Iowa counties ranked by median year housing was built (2010 ACS). This list covers the 97 counties in Iowa that qualify, ranked against each other statewide. The median across all 97 is 1956.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDMost expensive homes Cheapest homes Highest median rent Lowest median rent Highest homeownership rate Highest renter share

YEAR1990 2010 2020 2024

RANKPLACESTATEPOPMEDIAN YEAR BUILTVS 1990

01Dallas County, IAIA118,4571993+2%

02Johnson County, IAIA160,0441980+1%

03Story County, IAIA101,2911977+1%

04Warren County, IAIA57,33119750%

05Polk County, IAIA516,5461973+1%

06Dickinson County, IAIA18,0771972+1%

07Linn County, IAIA232,0281972+1%

08Mills County, IAIA14,7931972+1%

09Marion County, IAIA34,19219710%

10Ringgold County, IAIA4,6421970+1%

11Henry County, IAIA19,3491969+1%

12Davis County, IAIA9,2301967+1%

13Jefferson County, IAIA15,2911966+1%

14Poweshiek County, IAIA18,36819650%

15Madison County, IAIA17,2701965+1%

16Scott County, IAIA175,25919650%

17Clarke County, IAIA9,57419640%

18Benton County, IAIA26,0041964+1%

19Dubuque County, IAIA99,38119640%

20Plymouth County, IAIA25,6971964+1%

21Allamakee County, IAIA14,2381963+1%

22Buchanan County, IAIA20,88319630%

23Jasper County, IAIA38,15319630%

24Louisa County, IAIA10,41619630%

25Sioux County, IAIA36,77419630%

26Pottawattamie County, IAIA92,99619620%

27Delaware County, IAIA17,67419620%

28Muscatine County, IAIA41,85319620%

29Washington County, IAIA22,6671962+1%

30Bremer County, IAIA25,29619610%

31Iowa County, IAIA16,5041961+1%

32Jones County, IAIA21,25319610%

33Mahaska County, IAIA21,88019610%

34Black Hawk County, IAIA131,53219600%

35Guthrie County, IAIA10,7821960+1%

36Jackson County, IAIA19,28819600%

37Monroe County, IAIA7,40619600%

38Van Buren County, IAIA7,1311960+1%

39Winnebago County, IAIA10,25119600%

40Carroll County, IAIA20,30319590%

41Clay County, IAIA16,20219590%

42Adair County, IAIA7,4031957+1%

43Crawford County, IAIA16,23719570%

44Hancock County, IAIA10,52819570%

45Lyon County, IAIA12,3541957+1%

46Wayne County, IAIA6,7381957+1%

47Appanoose County, IAIA12,07719560%

48Cerro Gordo County, IAIA42,37219560%

49Chickasaw County, IAIA11,66319560%

50Marshall County, IAIA39,89019560%

51Winneshiek County, IAIA19,7331956+1%

52Woodbury County, IAIA106,64919560%

53Cedar County, IAIA18,35919550%

54Grundy County, IAIA12,36119550%

55Humboldt County, IAIA9,40919550%

56Lee County, IAIA32,30619550%

57Webster County, IAIA36,83819550%

58Decatur County, IAIA7,65519540%

59Buena Vista County, IAIA20,44919540%

60Clinton County, IAIA46,00219540%

61Floyd County, IAIA14,90119540%

62Kossuth County, IAIA14,32219540%

63Lucas County, IAIA8,84719540%

64Union County, IAIA11,82919530%

65Des Moines County, IAIA38,07719530%

66Calhoun County, IAIA9,56219530%

67Cherokee County, IAIA11,36919530%

68Fremont County, IAIA6,52219530%

69Hamilton County, IAIA14,94419530%

70Hardin County, IAIA16,45519530%

71Wright County, IAIA12,80119530%

72Greene County, IAIA8,6581952+1%

73Boone County, IAIA26,79919520%

74Clayton County, IAIA16,8451952+1%

75Emmet County, IAIA9,10719520%

76Harrison County, IAIA14,6231952+1%

77Palo Alto County, IAIA8,89919520%

78Butler County, IAIA14,04919510%

79O'Brien County, IAIA14,22019510%

80Shelby County, IAIA11,68919510%

81Wapello County, IAIA35,21019510%

82Mitchell County, IAIA10,65019500%

83Howard County, IAIA9,41519500%

84Tama County, IAIA16,7961950+1%

85Cass County, IAIA12,96019490%

86Osceola County, IAIA5,98019490%

87Page County, IAIA14,85619490%

88Worth County, IAIA7,33819490%

89Audubon County, IAIA5,50919480%

90Ida County, IAIA6,77719480%

91Monona County, IAIA8,53919480%

92Pocahontas County, IAIA6,81919480%

93Sac County, IAIA9,52519480%

94Fayette County, IAIA19,04719450%

95Franklin County, IAIA9,86819450%

96Montgomery County, IAIA10,00219430%

97Adams County, IAIA3,61719400%

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS