| Some Major City-County Consolidation Referenda in the 20th Century | ||||||||
| Year | City | County | State | Result | ||||
| 1902 | Denver | Denver County | Colorado | Pass | ||||
| 1907 | Honolulu | Honolulu County | n/a | Pass | ||||
| 1921 | Oakland | Alameda County | Califronia | Fail | ||||
| 1924 | Butte | Silver Bow County | Montana | Fail | ||||
| 1926 | St. Louis | St. Louis County | Missouri | Fail | ||||
| 1929 | Pittsburgh | Allegheny County | Pennsylvania | Fail | ||||
| 1932 | Various | Rivalli County | Montana | Fail | ||||
| 1933 | Macon | Bibb County | Georgia | Fail | ||||
| 1935 | Jacksonville | Duval County | Florida | Fail | ||||
| 1947 | Baton Rouge | East Baton Rouge Parish | Louisiana | Pass | ||||
| 1948 | Birmingham | Jefferson County | Alabama | Fail | ||||
| 1948 | Miami | Dade County | Florida | Fail | ||||
| 1950 | Hampton/Newport News | Elizabeth City County | Virginia | Fail | ||||
| 1952 | Hampton/Newport News | Elizabeth City County | Virginia | Pass | ||||
| 1953 | Miami | Dade County | Florida | Fail | ||||
| 1954 | Albany | Dougherty County | Georgia | Fail | ||||
| 1957 | Newport News | Warwick County | Virginia | Pass | ||||
| 1958 | Nashville | Davidson County | Tennessee | Fail | ||||
| 1959 | Albuquerque | Bernalillo County | New Mexico | Fail | ||||
| 1959 | Knoxville | Knox County | Tennessee | Fail | ||||
| 1960 | Macon | Bibb County | Georgia | Fail | ||||
| 1961 | Durham | Durham County | North Carolina | Fail | ||||
| 1961 | Richmond | Henrico County | Virginia | Fail | ||||
| 1962 | Columbus | Muscogee County | Georgia | Fail | ||||
| 1962 | Memphis | Shelby County | Missouri | Fail | ||||
| 1962 | Nashville | Davidson County | Tennessee | Pass | ||||
| 1962 | South Norfolk | Norfolk County | Virginia | Pass | ||||
| 1962 | St. Louis | St. Louis County | Missouri | Fail | ||||
| 1962 | Virginia Beach | Princess Anne County | Virginia | Pass | ||||
| 1964 | Chatanooga | Hamilton County | Tennessee | Fail | ||||
| 1967 | Jacksonville | Duval County | Florida | Pass | ||||
| 1967 | Tampa | Hillsborough County | Florida | Fail | ||||
| 1969 | Athens | Clarke County | Georgia | Fail | ||||
| 1969 | Brunswick | Glynn County | Georgia | Fail | ||||
| 1969 | Carson City | Ormsby County | Nevada | Fail | ||||
| 1969 | Indianapolis | Marion County | Indiana | * | ||||
| 1969 | Juneau | Greater Juneau County | Alaska | Pass | ||||
| 1970 | Anchorage | Greater Anchorage Borough | Alaska | Fail | ||||
| 1970 | Chatanooga | Hamilton County | Tennessee | Fail | ||||
| 1970 | Columbus | Muscogee County | Georgia | Pass | ||||
| 1970 | Juneau | Greater Juneau Borough | Alaska | Pass | ||||
| 1970 | Pensacola | Escambia County | Florida | Fail | ||||
| 1970 | Tampa | Hillsborough County | Florida | Fail | ||||
| 1970 | Winchester | Frederick County | Virginia | Fail | ||||
| 1971 | Anchorage | Greater Anchorage Borough | Alaska | Fail | ||||
| 1971 | Charlotte | Mecklenberg | North Carolina | Fail | ||||
| 1971 | Sitka | Greater Sitka Borough | Alaska | Pass | ||||
| 1971 | Tallahassee | Leon County | Florida | Fail | ||||
| 1971 | Tampa | Hillsborough County | Florida | Fail | ||||
| 1971 | Various | Namsemond | Virginia | Pass | ||||
| 1972 | Columbia | Richland County | Virginia | Fail | ||||
| 1972 | Fort Pierce | St. Lucie County | Florida | Fail | ||||
| 1972 | Lexington | Fayette County | Kentucky | Pass | ||||
| 1972 | Athens | Clarke County | Georgia | Fail | ||||
| 1972 | Suffolk | Namsemond City-County | Virginia | Pass | ||||
| 1972 | Tampa | Hillsborough County | Florida | Fail | ||||
| 1973 | Albuquerque | Bernalillo County | New Mexico | Fail | ||||
| 1973 | Savannah | Chatham County | Georgia | Fail | ||||
| 1973 | Tallahassee | Leon County | Florida | Fail | ||||
| 1973 | Wilmington | New Hanover County | North Carolina | Fail | ||||
| 1974 | Augusta | Richmond | Georgia | Fail | ||||
| 1974 | Durham | Durham County | North Carolina | Fail | ||||
| 1974 | Portland | Multnomah County | Oregon | Fail | ||||
| 1974 | Sacramento | Sacramento County | California | Fail | ||||
| 1975 | Anchorage | Greater Anchorage County | Alaska | Pass | ||||
| 1976 | Augusta | Richmond | Georgia | Fail | ||||
| 1976 | Anaconda | Deer Lodge County | Montana | Pass | ||||
| 1976 | Butte | Silver Bow County | Montana | Pass | ||||
| 1981 | Houma | Terrebonne | Louisiana | Pass | ||||
| 1982 | Athens | Clarke | Georgia | Fail | ||||
| 1982 | Louisville | Jefferson | Kentucky | Fail | ||||
| 1984 | Houma | Terrebonne Parish | Louisiana | Pass | ||||
| 1987 | Brunswick | Glynn County | Georgia | Fail | ||||
| 1987 | Wilmington | New Hanover County | North Carolina | Fail | ||||
| 1988 | Augusta | Richmond | Georgia | ** | ||||
| 1988 | Lynchburg City | Moore County | Tennessee | Pass | ||||
| 1991 | Conyers | Rockdale County | Georgia | Fail | ||||
| 1990 | Athens | Clarke County | Georgia | Pass | ||||
| 1990 | Bowling Green | Warren County | Kentucky | Fail | ||||
| 1990 | Gainesville | Alachua County | Florida | Fail | ||||
| 1990 | Owensboro | Davis County | Kentucky | Fail | ||||
| 1990 | Roanoke | Roanoke County | Virginia | Fail | ||||
| 1990 | Sacramento | Sacramento County | California | Fail | ||||
| 1991 | Griffin/Spalding | Spalding County | Georgia | Fail | ||||
| 1992 | Ashland and Catlettsburg | Boyd County | Kentucky | Fail | ||||
| 1992 | Lafayette | Lafayette Parish | Louisiana | Pass | ||||
| 1994 | Des Moines | Polk County | Iowa | Fail | ||||
| 1994 | Douglasville | Douglas County | Georgia | Fail | ||||
| 1994 | Metter | Candler County | Georgia | Fail | ||||
| 1995 | Augusta | Richmond County | Georgia | Pass | ||||
| 1995 | Spokane | Spokane County | Washinton | Fail | ||||
| 1995 | Wilmington | New Hanover County | North Carolina | Fail | ||||
| 1997 | Griffin | Spalding County | Georgia | Fail | ||||
| 1997 | Kansas City | Wyandotte County | Kansas | Pass | ||||
| 1999 | Georgia | Fail | ||||||
| 2003 | Louisville | Jefferson County | Kentucky | Pass | ||||
| 2004 | Desmoines | Polk County | Iowa | Forthcoming (Nov. 2004) | ||||
| * Consolidation did not require referendum. | ||||||||
| ** Referendum passed but was blocked by Justice Deparment | ||||||||