Beaver County League was an Independent League that was based in Pennsylvania.
1894 Beaver, Beaver Falls, New Brighton, Rochester
1895 to 1896 Not sure if this League played
1897 Beaver, Beaver Falls, New Brighton, Rochester
1909 Aliquippa, Ambridge, Beaver Falls, Bridgewater, Conway, Monaca, New Brighton, Rochester
1910 Aliquippa, Ambridge, Beaver Falls, Bridgewater, Freedom, New Bridgeton, Rochester, Woodland
1911 Ambridge, Beaver, Beaver Falls, Bridgewater, Coraopolis-American Bridge, New Brighton, South Heights, Woodland
1912 Ambridge, Beaver, Beaver Falls, Bridgewater, Coraopolis-American Bridge, New Brighton, Riverview
1913 Ambridge, Beaver, Beaver Falls, Bridgewater, Coraopolis-American Bridge, Monaca, Tracton, Woodland
1914 Ambridge, Beaver Falls, Bridgewater, Coraopolis, Monaca, Rochester,
1915 Not sure if this league played
1916 Ambridge, Ambridge-National Electric, Conway, Freedom, Leetsdale, Rochester
1922 Aliquippa, Ambridge, Baden, Beaver Falls, College Hill, Darlington, Homewood, Monaca, New Brighton, Rochester
1923 Aliquappa, Baden, Koppel, Homewood, South Heights, Woodland
1924 Darlington, Monaca, New Brighton, Rochester, Wampum
1925 to 1926 Not sure if this league played
1927 Ambridge, Baden, Beaver, Beaver Falls, Freedom, Homewood, Koppel, New Brighton, Rochester, Woodlawn
1928 Conway, Ellwood City and Monaca into the League and Freedom, Homewood, Koppel, and Woodland has left the league
1929 Aliquppa enter the league and Beaver Falls. Monaca and Conway has left the League
1930 Beaver Falls emter the League and New Brighton has left the league
1931 Corapolis and Conway has enter the League and Beaver Falls and Rochester has left the league
1932 Beaver Falls, Koppel and Midland enter the league and Corapolis and Conway has left the League
1933 Ambridge, Beaver, Beaver Falls, Ellwood City, Midland, New Brighton, Sewickley, South Heights
1934 Koppel enter the League and Midland, Sewickley and South Heights has left the league
1935 B & T Tire, Ing-Rich and Rochester enter the league and Ambridge, Beaver Falls, and Koppel
1936 Monaca has enter the League and Beaver, B & T Tire and Rochester
1937 Ambridge, Ellwod City, Ing-Rich, Monoca, New Brighton
1938 Not sure if this league played
1939 Aliquippa, Baden, Beaver, Beaver Falls, Chippewa, Darlington, Darlington-Cannelton, Koppel, New Brighton, Shippingport
1940 Aliquippa, Ambridge, Baden, Beaver, Celtics Reds, Chippewa, Conway, East Rochester, Fallston, Freedom, Rochester
1941 Midland enter the league and Ambrdige, Baden, Celtics Reds, and Fallston has left the league.
1942 Beaver - Curtiss Wright, Beaver Falls, New Galilee, and West Mayfield has enter the league and Chippewa, East Rochester, Freedom, and Midland has left the League
1943 Aliquippa, Conway, New Galilee and West Mayfield left the league.
1944 Monoca, New Brighton and New Brighton Merchants enter the league and Curtiss Wright has left the league.
1945 See Beaver County Association
1946 Ambridge, Ambridge-National Electric, Conway, Leetsdale, and Rochester started the league
1947 Beaver Falls, Freedom, Koppel, and West Mayfield enter the League and Leetsdale left the league
1948 Midland and New Brighton enter the League and Koppel has left the league
1949 Monaca has enter the League Beaver Falls and Freedom has left the League
1950 Beaver Falls enter the league and Monaca has left the League
1951 No teams has left or enter the League
1952 Aliquippa and Sewickley has enter the League and Ambridge and Beaver Falls has left the league
1953 Beavre Falls and Koppel has enter the League and Ambridge-National Electric and Sewickley has left the League
1954 Ambridge enter the league and Koppel has left the league
1955 New Brighton has enter the League and Conway has left the League
1956 Beaver and Koppel has enter the League and Monaca and Rochester has left the League
1957 Ambridge and Koppel has left the League
1958 Beaver has left the League
NOTE 1 - BOLD means unknown Location
NOTE 2 - This League played on until 2010's
NOTE 3 - some Newspapers call this League Beaver Valley League