Xinyang's 2020 population is now estimated at 797,369. In 1950, the population of Xinyang was 79,648. Xinyang has grown by 94,083 since 2015, which represents a 2.54% annual change. These population estimates and projections come from the latest revision of the UN World Urbanization Prospects. These estimates represent the Urban agglomeration of Xinyang, which typically includes Xinyang's population in addition to adjacent suburban areas.
| Year | Population | Growth Rate (%) | Growth |
|---|---|---|---|
| 2035 | 1,001,507 | 0.88% | 42,871 |
| 2030 | 958,636 | 1.49% | 68,261 |
| 2025 | 890,375 | 2.23% | 93,006 |
| 2020 | 797,369 | 2.54% | 94,083 |
| 2015 | 703,286 | 2.55% | 83,273 |
| 2010 | 620,013 | 2.55% | 73,412 |
| 2005 | 546,601 | 2.76% | 69,622 |
| 2000 | 476,979 | 5.73% | 116,024 |
| 1995 | 360,955 | 5.73% | 87,780 |
| 1990 | 273,175 | 2.72% | 34,254 |
| 1985 | 238,921 | 2.92% | 32,037 |
| 1980 | 206,884 | 3.23% | 30,435 |
| 1975 | 176,449 | 3.23% | 25,951 |
| 1970 | 150,498 | 3.23% | 22,135 |
| 1965 | 128,363 | 3.23% | 18,874 |
| 1960 | 109,489 | 3.23% | 16,107 |
| 1955 | 93,382 | 3.23% | 13,734 |
| 1950 | 79,648 | 0.00% |