3.18 Intercensal Growth Rates of Population 1901-1991
| Census | Variation | Growth Rates | ||
| Year | Population | Number | Percent | (Exponential |
| 1901 March 1 | 28,927,786 | — | — | — |
| 1911 March 10 | 31,555,056 | 2,627,270 | 9.08 | 0.94 |
| 1921 March 18 | 33,254,096 | 1,699,040 | 5.38 | 0.60 |
| 1931 Feb. 26 | 35,604,170 | 2,350,074 | 7.07 | 0.74 |
| 1941 March 1 | 41,997,297 | 6,393,127 | 17.96 | 1.70 |
| 1951 March 1 | 44,165,740 | 2,168,443 | 5.16 | 0.50 |
| (42,062,610) | ||||
| 1961 Feb. 1 | 55,222,663 | 11,056,923 | 25.04 | 2.26 |
| (50,840,235) | ||||
| 1974 March 1 | 76,398,000 | 21,175,337 | 38.35 | 2.48 |
| (71,479,071) | ||||
| 1981 March 5 | 89,912,000 | 13,514,000 | 17.69 | 2.35 |
| (87,120,119) | ||||
| 1991 March 11 | 111,455,185 | 21,543,185 | 23.96 | 2.17 |
| (106,314,992) | ||||
| Note: Figures in the Parenthesis represent enumerated population | ||||
| Source: Bangladesh Population Census, 1981 and 1991, BBS. | ||||