| Business | Phone |
| Frio County Auditor 500 E San Antonio St # 3, Pearsall 78061 | (830) 334-0000 |
| Frio County Tax Collectors Office 500 E San Antonio St # 20, Pearsall 78061 | (830) 334-2152 |
| Frio County Treasurer 500 E San Antonio St # 2, Pearsall 78061 | (830) 334-0040 |