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Exhibit 99.1 PLUMAS BANCORP REPORTS RECORD THIRD QUARTER 2026 EARNINGS Reno , Nevada , October 21 , 2026 – Plumas Bancorp ( Nasdaq : PLBC ) referred to herein as the ' Company ' , the parent company of Plumas Bank , today announced record earnings during the third quarter of 2026 of $ 11.4 million , or $ 1.64 per share , an increase of $ 6.2 million from $ 5.1 million or $ 0.74 per share , during the third quarter of 2025. Diluted earnings per share increased to $ 1.61 per share during the three months ended September 30 , 2026 , up from $ 0.73 per share during the quarter ended September 30 , 2025 . Return on average assets was 1.98 % during the current quarter , up from 0.90 % during the third quarter of 2025. Return on average equity increased to 16.7 % during the current quarter , up from 8.5 % during the third quarter of 2025 . Net interest income increased by $ 1.3 million from $ 25.2 million during the three months ended September 30 , 2025 , to $ 26.5 million during the current quarter . The provision for credit losses decreased from $ 5.4 million during the third quarter of 2025 to $ 150 thousand during the current quarter . Non - interest income increased by $ 538 thousand from $ 2.2 million during the three months ended September 30 , 2025 , to $ 2.8 million during the third quarter of 2026 . Non - interest expense was flat compared to the third quarter of 2025 at $ 15.1 million . The provision for income taxes increased $ 877 thousand to $ 2.6 million during the current quarter from $ 1.8 million during the third quarter of 2025 , due to higher pre - tax earnings . The effective tax rate declined to 18.9 % from 25.6 % in the prior - year quarter , related to the purchase of $ 14.5 million in green energy tax credits . For the nine months ended September 30 , 2026 , the Company reported net income of $ 31.1 million or $ 4.46 per share , an increase of $ 12.5 million from $ 18.6 million or $ 2.98 per share earned during the nine months ended September 30 , 2025. Earnings per diluted share increased to $ 4.40 during the nine months ended September 30 , 2026 , up $ 1.46 from $ 2.94 during the first nine months of 2025 . Return on average assets was 1.85 % during the nine months ended September 30 , 2026 , up from 1.35 % during the first nine months of 2025. Return on average equity increased to 15.5 % for the nine months ended September 30 , 2026 , up from 12.2 % during the first nine months of 2025 . Net interest income increased by $ 15.8 million from $ 61.9 million during the nine months ended September 30 , 2025 , to $ 77.7 million during the current period . The provision for credit losses decreased from $ 6.5 million during the first nine months of 2025 to $ 420 thousand during the current period . Non - interest income increased by $ 713 thousand from $ 7.8 million during the nine months ended September 30 , 2025 , to $ 8.5 million during the first nine months of 2026 . Non - interest expense increased by $ 7.3 million from $ 37.6 million during the first nine months of 2025 to $ 44.9 million during the current period . The provision for income taxes increased by $ 2.8 million from $ 7.0 million , or 27.2 % of pre - tax income , during the nine months ended September 30 , 2025 , to $ 9.8 million , or 23.9 % of pre - tax income , during the current period . 1