Houston-Galveston Area Council
| Year | Pop. | ±% |
|---|---|---|
| 2000 | 4,854,454 | — |
| 2010 | 6,087,133 | +25.4% |
| 2020 | 7,297,022 | +19.9% |
| Source: | ||
The Houston-Galveston Area Council (H-GAC) is the region-wide voluntary association of local governments in the 13-county Gulf Coast Planning Region of Texas. The organization works with local government officials to solve problems across the area. H-GAC was founded in 1966.