0001163668 2025-09-30 2025-09-30 false 0001163668 8-K 2025-09-30 South Plains Financial, Inc. TX 001-38895 75-2453320 5219 City Bank Parkway Lubbock TX 79407 806 792-7101 false false false false Common Stock, par value $1.00 per share SPFI NASDAQ false