Founded in 1870, San Jacinto County is one of 254 counties in the state of Texas. Historically, San Jacinto County was formed from Liberty County, Montgomery County, Polk County and Walker County. The city of Coldspring is the county seat. With FIPS code of 407, San Jacinto County has a population of 27,878 and area of 571 square miles (1,479 km2).
List of all cities in San Jacinto County, TX alphabetically
| City/Town | Postal Code | Area Code |
| Camilla, TX | 77331 | 936 |
| Coldspring, TX | 77331 | 936 |
| Oakhurst, TX | 77359 | 936 |
| Pointblank, TX | 77364 | 936 |
| Shepherd, TX | 77371 | 936 |
| Stephen Creek, TX | 77331 | 936 |
| Willow Springs, TX | 77331 | 936 |