Township          1900      1940       1960     1980       1990
Ashley           1,206       678        644      725        567
Buffalo          7,969     6,371      5,883    6,018      5,676
Calumet          3,800     2,581      1,847    1,657      1,418
Cuivre           4,381     3,524      4,155    4,856      4,694
Hartford         1,658       974        673      558        489
Indian           1,117       707        653      808        619
Peno             1,990     1,235        908    1,067        836
Prairieville     1,010       762        651      721        688
Salt River         881       395        246      212        163
Spencer          1,732     1,100      1,046      946        819
TOTAL           25,744    18,327     16,706   17,568     15,969

Source: U.S. Population Census