EXHIBIT 99.1 American River Bankshares announces 3rd Quarter EPS of $0.41 Sacramento, CA, October 19, 2006 - American River Bankshares (NASDAQ-GS: AMRB) today reported diluted earnings per share for the third quarter of 2006 of $0.41, a 7.9% increase from $0.38 during the second quarter of 2006 and no change from the third quarter of 2005. Net income for the third quarter of 2006 increased 6.5% to $2,275,000 from $2,137,000 during the second quarter of 2006 and decreased 4.3% to $2,376,000 for the third quarter of 2005. Diluted earnings per share for the nine months ended September 30, 2006 increased 1.7% to $1.17 from $1.15 diluted earnings per share and net income rose 0.6% to $6,655,000 from $6,617,000 for the nine months ended September 30, 2005. "American River Bankshares has been able to show improvement in a very challenging banking environment," said David T. Taber, President and CEO of American River Bankshares. "We didn't let the fact that second quarter earnings were below our expectations change our direction with the strategic plan and as a result, are encouraged by our effort in the third quarter." Net interest income for the third quarter of 2006 increased 1.5% to $6,798,000 from $6,699,000 for the second quarter of 2006 and increased 0.7% from $6,753,000 for the third quarter of 2005. Interest income for the third quarter of 2006 increased 2.9% to $9,737,000 from $9,463,000 for the second quarter of 2006 and increased 13.7% from $8,562,000 for the third quarter of 2005. For the nine months ended September 30, 2006, net interest income increased 4.0% to $20,289,000 from $19,507,000 and interest income increased 16.8% to $28,317,000 from $24,247,000 for the nine months ended September 30, 2005. Net interest margin as a percentage increased to 5.01% for the third quarter of 2006 from 4.96% for the second quarter of 2006 and from 4.92% for the third quarter of 2005. For the nine months ended September 30, 2006, net interest margin as a percentage increased to 5.03% from 4.95% for the nine months ended September 30, 2005. Interest expense for the third quarter of 2006 increased 6.3% to $2,939,000 from $2,764,000 for the second quarter of 2006 and increased 62.5% from $1,809,000 for the third quarter of 2005. For the nine months ended September 30, 2006, interest expense increased 69.4% to $8,028,000 from $4,740,000. Noninterest income for the third quarter of 2006 increased 1.3% to $605,000 from $597,000 for the second quarter of 2006 and increased 1.9% from $594,000 for the third quarter of 2005. For the nine months ended September 30, 2006, noninterest income increased 4.4% to $1,836,000 from $1,759,000. Noninterest expense decreased 0.6% to $3,602,000 from $3,622,000 in the second quarter of 2006 and increased 4.0% from $3,464,000 for the third quarter of 2005. For the nine months ended September 30, 2006, noninterest expense increased 6.5% to $10,862,000 from $10,195,000. This increase is primarily related to higher personnel costs (up $415,000 or 7.9% excluding FAS 123 (R) related costs), occupancy expense (up $88,000 or 5.6%), professional fees (up $47,000 or 8.4%) and costs associated with adopting FAS 123(R) ($160,000). Net loans as of September 30, 2006 decreased $17,779,000 (4.5%) to $374,396,000 from $392,175,000 as of June 30, 2006 but increased $16,140,000 (4.5%) from $358,256,000 as of September 30, 2005. From December 31, 2005, net loans increased $8,825,000 (2.4%) from $365,571,000. Total deposits as of September 30, 2006 increased $12,834,000 (2.7%) to $493,444,000 from $480,610,000 as of June 30, 2006 but decreased $25,211,000 (4.9%) from $518,655,000 as of September 30, 2005. From December 31, 2005, total deposits decreased $7,262,000 (1.5%) from $500,706,000. Short-term borrowings decreased 55.0% to $25,566,000 at September 30, 2006 from $56,840,000 at June 30, 2006. Short-term borrowings are up 35.6% from $18,860,000 at September 30, 2005. "Our net interest margin is back above 5%, due in large part to the fact that we were able to cut short-term borrowings in half over last quarter," said Mr. Taber. "We accomplished this major shift by working hard to increase core deposits, while at the same time decreasing our investment portfolio." Page 4 of Page 9 Credit quality remains good, with nonperforming loans and leases at 0.08% of total loans and leases compared to 0.07% last quarter and 0.05% one year ago. The allowance for loan and lease losses decreased to $5,871,000 as of September 30, 2006 from $5,924,000 as of June 30, 2006 and increased from $5,691,000 as of September 30, 2005. The provision for loan and lease losses was $30,000 for the third quarter of 2006, a decrease from $156,000 for the second quarter of 2006 and an increase from $0 for the third quarter of 2005. The reserve as a percentage of loans and leases was 1.54% at September 30, 2006, compared to 1.49% at June 30, 2006 and 1.56% at September 30, 2005. Non performing assets were $299,000 at September 30, 2006 and net chargeoffs for the first nine months of 2006 were $78,000. Performance measures in the third quarter of 2006: the Return on Average Assets (ROAA) was 1.50%, Return on Average Equity (ROAE) was 14.39%, Return on Average Tangible Equity (ROATE) was 20.16% and the efficiency ratio was 47.03%. For the quarter ended June 30, 2006, the Company had a ROAA of 1.41%, ROAE of 13.52%, ROATE of 18.92% and an efficiency ratio of 48.01%. For the quarter ended September 30, 2005, the Company had a ROAA of 1.54%, ROAE of 15.32%, ROATE of 21.74% and an efficiency ratio of 45.44%. Third Quarter Highlights o American River Bankshares continues a long history of enhancing shareholder value with its 91st consecutive profitable quarter. In the third quarter of 2006, the Company repurchased 130,000 shares totaling $3,302,000 and year to date, has repurchased over 230,000 shares totaling nearly $6,000,000. Also in the third quarter of 2006, the Company declared a quarterly cash dividend of 15 cents per share. o Net interest margin for the quarter ended September 30, 2006 was 5.01% compared to 4.92% for the quarter ended September 30, 2005. Net interest margin for the nine months ended September 30, 2006 was 5.03% compared to 4.95% for the nine months ended September 30, 2005. o American River Bank's offices in the Greater Sacramento Area and Placer County experienced a decrease in total deposits of 7.5% to $317,860,000 at September 30, 2006 from $343,676,000 at September 30, 2005. Year over year, net loans increased 6.1% to $219,683,000 from $207,125,000. o North Coast Bank, a division of American River Bank with three offices in Sonoma County, increased total deposits 9.0% to $68,159,000 at September 30, 2006 from $62,509,000 as of September 30, 2005. Year over year, net loans increased 5.0% to $76,241,000 from $72,597,000. o Bank of Amador, a division of American River Bank with three offices in Amador County, experienced a decrease in total deposits of 5.1% to $107,661,000 at September 30, 2006 from $113,421,000 at September 30, 2005. Year over year, net loans decreased marginally to $78,472,000 from $78,534,000. About American River Bankshares - ------------------------------- American River Bankshares [NASDAQ: AMRB] is the parent company of American River Bank ("ARB"), a community business bank serving Sacramento, CA that operates a family of financial services providers, including North Coast Bank [a division of "ARB"] in Sonoma County and Bank of Amador [a division of "ARB"] in Amador County. For more information, please call 916-231-6700 or visit www.amrb.com; www.americanriverbank.com; www.northcoastbank.com; or www.bankofamador.com. Page 5 of Page 9 Forward-Looking Statement - ------------------------- Certain statements contained herein are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 that involve risks and uncertainties. Actual results may differ materially from the results in these forward-looking statements. Factors that might cause such a difference include, among other matters, changes in interest rates, economic conditions, governmental regulation and legislation, credit quality, and competition affecting the Company's businesses generally; the risk of natural disasters and future catastrophic events including terrorist related incidents; and other factors discussed in the Company's Annual Report on Form 10-K for the year ended December 31, 2005, and in reports filed on its 2006 Form 10-Q and Form 8-K. The Company does not undertake any obligation to publicly update or revise any of these forward-looking statements, whether to reflect new information, future events or otherwise. Page 6 of Page 9 American River Bankshares Consolidated Balance Sheet (Unaudited) September 30 September 30 % December 31 ASSETS 2006 2005 Change 2005 ------------------------------------------------------------- Cash and due from banks $ 29,076,000 $ 38,215,000 (23.9%) $ 34,825,000 Federal funds sold -- 1,100,000 n/a 1,250,000 Interest-bearing deposits in bank 4,951,000 5,339,000 (7.3%) 4,844,000 Investment securities 149,776,000 175,539,000 (14.7%) 171,809,000 Loans and leases: Real estate 271,350,000 265,974,000 2.0% 265,995,000 Commercial 83,128,000 70,407,000 18.1% 77,971,000 Lease financing 6,686,000 7,809,000 (14.4%) 7,967,000 Other 19,790,000 20,543,000 (3.7%) 20,029,000 Deferred loan and lease originations fees, net (687,000) (786,000) (12.6%) (712,000) Allowance for loan and lease losses (5,871,000) (5,691,000) 3.2% (5,679,000) ------------------------------------------------------------- Total loans and leases, net 374,396,000 358,256,000 4.5% 365,571,000 ------------------------------------------------------------- Bank premises and equipment 1,905,000 1,983,000 (3.9%) 2,090,000 Accounts receivable servicing receivable, net 2,611,000 2,486,000 5.0% 2,000,000 Intangible assets 17,903,000 18,119,000 (1.2%) 18,152,000 Accrued interest and other assets 11,481,000 12,937,000 (11.3%) 12,222,000 ------------------------------------------------------------- $ 592,099,000 $ 613,974,000 (3.6%) $ 612,763,000 ============================================================= LIABILITIES & EQUITY Noninterest-bearing deposits $ 154,549,000 $ 175,516,000 (11.9%) $ 164,397,000 Interest checking 42,670,000 47,652,000 (10.5%) 46,364,000 Money market 125,170,000 140,307,000 (10.8%) 133,443,000 Savings 36,785,000 37,352,000 (1.5%) 37,610,000 Time deposits 134,270,000 117,828,000 14.0% 118,892,000 ------------------------------------------------------------- Total deposits 493,444,000 518,655,000 (4.9%) 500,706,000 ------------------------------------------------------------- Short-term borrowings 25,566,000 18,860,000 35.6% 39,386,000 Long-term debt 6,722,000 8,286,000 (18.9%) 4,270,000 Accrued interest and other liabilities 4,747,000 5,961,000 (20.4%) 5,655,000 ------------------------------------------------------------- Total liabilities 530,479,000 551,762,000 (3.9%) 550,017,000 Total equity 61,620,000 62,212,000 (1.0%) 62,746,000 ------------------------------------------------------------- $ 592,099,000 $ 613,974,000 (3.6%) $ 612,763,000 ============================================================= Nonperforming loans and leases to total loans and leases 0.08% 0.05% 0.02% Net chargeoffs to average loans and leases (annualized) 0.03% 0.03% 0.04% Allowance for loan and lease loss to total loans and leases 1.55% 1.56% 1.53% Leverage Ratio 7.59% 7.50% 7.64% Tier 1 Risk-Based Capital Ratio 10.19% 10.52% 10.57% Total Risk-Based Capital Ratio 11.44% 11.78% 11.82% Page 7 of Page 9 American River Bankshares Consolidated Statement of Income (Unaudited) Third Third % For the Nine Months % Quarter Quarter Change Ended September 30 Change 2006 2005 2006 2005 ------------------------------------------------------------------------- Interest income $ 9,737,000 $ 8,562,000 13.7% $28,317,000 $24,247,000 16.8% Interest expense 2,939,000 1,809,000 62.5% 8,028,000 4,740,000 69.4% ------------------------------------------------------------------------- Net interest income 6,798,000 6,753,000 0.7% 20,289,000 19,507,000 4.0% Provision for loan and lease losses 30,000 -- n/a 270,000 272,000 (0.7%) Total noninterest income 605,000 594,000 1.9% 1,836,000 1,759,000 4.4% Total noninterest expense 3,602,000 3,464,000 4.0% 10,862,000 10,195,000 6.5% ------------------------------------------------------------------------- Income before taxes 3,771,000 3,883,000 (2.9%) 10,993,000 10,799,000 1.8% Income taxes 1,496,000 1,507,000 (0.7%) 4,338,000 4,182,000 3.7% ------------------------------------------------------------------------- Net income $ 2,275,000 $ 2,376,000 (4.3%) $ 6,655,000 $ 6,617,000 0.6% ========================================================================= Basic earnings per share $ 0.41 $ 0.42 (2.4%) $ 1.19 $ 1.18 0.8% Diluted earnings per share 0.41 0.41 -- 1.17 1.15 1.7% Average diluted shares outstanding 5,609,839 5,740,870 5,677,800 5,741,351 Net interest margin as a percentage 5.01% 4.92% 5.03% 4.95% Operating Ratios: Return on average assets 1.50% 1.54% 1.47% 1.49% Return on average equity 14.39% 15.32% 14.11% 14.71% Return on average tangible equity 20.16% 21.74% 19.76% 21.11% Efficiency ratio (fully taxable equivalent) 47.03% 45.44% 47.45% 46.21% Page 8 of Page 9 American River Bankshares Consolidated Statement of Income (Unaudited) Trailing Four Quarters Third Second First Fourth Quarter Quarter Quarter Quarter 2006 2006 2006 2005 ------------------------------------------------------------ Interest income $ 9,737,000 $ 9,463,000 $ 9,117,000 $ 8,966,000 Interest expense 2,939,000 2,764,000 2,325,000 2,011,000 ------------------------------------------------------------ Net interest income 6,798,000 6,699,000 6,792,000 6,955,000 Provision for loan and lease losses 30,000 156,000 84,000 50,000 Total noninterest income 605,000 597,000 634,000 570,000 Total noninterest expense 3,602,000 3,622,000 3,638,000 3,298,000 ------------------------------------------------------------ Income before taxes 3,771,000 3,518,000 3,704,000 4,177,000 Income taxes 1,496,000 1,381,000 1,461,000 1,610,000 ------------------------------------------------------------ Net income $ 2,275,000 $ 2,137,000 $ 2,243,000 $ 2,567,000 ============================================================ Basic earnings per share $ 0.41 $ 0.38 $ 0.40 $ 0.46 Diluted earnings per share 0.41 $ 0.38 0.39 0.45 Average diluted shares outstanding 5,609,839 5,698,170 5,726,674 5,721,542 Shares outstanding-end of period 5,407,500 5,535,576 5,624,644 5,604,479 Net interest margin as a percentage 5.01% 4.96% 5.12% 5.09% Quarterly Operating Ratios: Return on average assets 1.50% 1.41% 1.49% 1.67% Return on average equity 14.39% 13.53% 14.41% 16.41% Return on average tangible equity 20.16% 18.92% 20.20% 23.15% Efficiency ratio (fully tax equivalent) 47.03% 48.01% 47.34% 42.21% Earnings per share have been adjusted for a 5% stock dividend declared in 2005. 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