county,municipalities_served,housing_units,pct_pre_1978_weighted,pct_pre_1940_weighted,median_home_year_min,median_home_year_median,median_home_year_max
Hudson County,12,317032,61.8,29.8,1949,1963,1984
Middlesex County,25,316633,55.8,10.6,1952,1967,1994
Essex County,14,309300,72.9,29.6,1938,1956,1966
Ocean County,32,290941,45.0,4.2,1954,1976,1996
Monmouth County,54,274165,54.8,13.8,1938,1964,2000
Union County,20,210500,77.9,24.2,1950,1955,1965
Mercer County,10,142828,63.7,19.1,1938,1965,1992
Somerset County,12,110807,41.9,7.9,1955,1985,1993
Burlington County,6,29781,47.5,8.5,1972,1994,2004