2 1 (1932) has 142200 people, which is less than Xuantongyuan 14.25438+0%. Later, due to the deployment of troops, taxation according to population, and famine, the population decreased to 120800 in 34 years (1945), which was 7.72% less than 2 1. After War of Resistance against Japanese Aggression's victory, the population increased year by year. In 38 years (1949), there were 204 1 10,000 people, an increase of 40.8 1% over 34 years.

1950 ~ 1957 is the first peak of population growth, and 1957 is 250,500, an increase of 22.73% compared with 1949, and it has increased by 46,400 in eight years, with an average annual growth rate of 5,800, with a growth rate of 28.4‰.

1958 ~ 196 1 population growth is slow, 196 1 is 269,200, an increase of 7.47% compared with 1957, with an average annual growth of 0.65438. The population growth reached the second peak from 1962 to 1972, and 1972 was 355 1000 people, an increase of 3 1. compared with19/year.

From 1973 to 1979, the family planning work has been continuously strengthened, and the population growth has slowed down, reaching 1979, 39 1300, which is higher than 1972.

From 1980 to 1985, the population grew steadily, and 1985 was 393,200, an increase of 0.49% over 1979, an increase of 92.65% over 1949, and an increase of 0.6% in six years. 1987 399 1000, which is 5900 more than 1985.

In 20 12, the total registered population of Mianxian county was 426,300, including 73,700 non-agricultural population. The permanent population is 388,000, the birth rate is 8.57‰, the mortality rate is 7.06‰, and the natural growth rate is 1.5 1‰.