Category:Counties in the United States in the 20th century

Subcategories

This category has the following 11 subcategories, out of 11 total.

Counties in the United States in the 1900s‎ (21 C)
Counties in the United States in the 1910s‎ (23 C)
Counties in the United States in the 1920s‎ (22 C)
Counties in the United States in the 1930s‎ (28 C)
Counties in the United States in the 1940s‎ (24 C)
Counties in the United States in the 1950s‎ (14 C)
Counties in the United States in the 1960s‎ (10 C)
Counties in the United States in the 1970s‎ (23 C)
Counties in the United States in the 1980s‎ (21 C)
Counties in the United States in the 1990s‎ (21 C)

C

California in the 20th century by county‎ (3 C)

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