1. Geography Median year Median year
structure built structure built
(2009 ACS) (2000 Census)
United States 1974 1971
Nevada 1992 1986
Arizona 1986 1982
Georgia 1984 1980
Florida 1983 1980
North Carolina 1983 1978
South Carolina 1982 1978
Alaska 1981 1979
Texas 1981 1977
Utah 1981 1976
Arkansas 1979 1976
Colorado 1979 1976
Idaho 1979 1975
Mississippi 1979 1976
New Mexico 1979 1977
Tennessee 1979 1975
Alabama 1978 1975
Delaware 1978 1973
Virginia 1978 1975
Washington 1977 1974
Hawaii 1976 1974
Kentucky 1976 1973
Louisiana 1976 1972
Oregon 1976 1973
Wyoming 1975 1973
Maryland 1974 1971
New Hampshire 1974 1971
Oklahoma 1974 1972
California 1973 1970
Minnesota 1973 1969
Missouri 1973 1970
Montana 1973 1971
North Dakota 1972 1970

2. Geography Median year Median year
structure built structure built
(2009 ACS) (2000 Census)
South Dakota 1972 1968
Vermont 1971 1968
West Virginia 1971 1969
Indiana 1970 1966
Kansas 1970 1966
Maine 1970 1966
Wisconsin 1970 1965
Michigan 1968 1965
Nebraska 1968 1965
Illinois 1965 1962
New Jersey 1964 1962
Ohio 1964 1962
Iowa 1963 1959
Connecticut 1962 1961
Pennsylvania 1959 1957
Massachusetts 1957 1956
Rhode Island 1956 1958
New York 1954 1954