Exhibit 99.1

Successful acquisitions and organic loan growth drive

strong 4^th quarter earnings for Old National

4^th QUARTER HIGHLIGHTS:

2012 HIGHLIGHTS:

Evansville, Ind. (January 28, 2013) – Today Old National Bancorp (NYSE: ONB) reported 4^th quarter net income of $23.0 million, or $.23 per share. These 4^th quarter results compare favorably to the net income of $19.7 million, or $.20 per share, that Old National reported in 3^rd quarter 2012, and net income of $22.2 million, or $.23 per share, that Old National reported in 4^th quarter 2011.

Net income for the 12 months ended December 31, 2012, was $91.7 million, or $.95 per share. These results represent a $19.2 million, or 26% increase, to full-year 2011 net income of $72.5 million and a 25% increase to full-year 2011 earnings per share of $.76.

As was announced in a press release dated January 24, 2013, Old National Bancorp’s Board of Directors declared an increase in its quarterly common stock dividend to $.10 per share on the Company’s outstanding shares. This new dividend level represents an 11.1% increase over the previous cash dividend level of $.09 per common share. This dividend is payable March 15, 2013, to shareholders of record on March 1, 2013. For purposes of broker trading, the ex-date of the cash dividend is February 27, 2013.

Bob Jones, Old National’s President and CEO stated, “I am extremely proud of the 2012 financial results for Old National. Producing the highest net income seen by the Company in a decade clearly demonstrates the success of our recent acquisitions and the importance of organic loan growth while maintaining a watchful eye on credit and expenses. Additionally, we closed on two of our branch sales on January 18 and anticipate the third sale closing later in the 1^st quarter of this year. With the hard work of our dedicated associates producing these strong results, as well as the recently announced pending purchase of 24 branches from Bank of America, we’re certainly starting off 2013 with positive momentum.”

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Committed to our Strategic Imperatives

Old National’s strong performance can be attributed to our unwavering commitment to the following strategic imperatives:

1. STRENGTHEN THE RISK PROFILE

Credit Quality

Old National reported provision expense in the 4^th quarter of 2012 of $2.2 million, compared to $.4 million in the 3^rd quarter of 2012 and the $1.0 million in the 4^th quarter of 2011. For the full year 2012, Old National reported $5.0 million of provision for loan losses compared to $7.5 million in 2011. Old National’s net charge-offs for 4^th quarter 2012 were $2.2 million, or .17% of total loans, compared to $.4 million, or .03% of total loans in 3^rd quarter 2012 and $8.5 million, or .71% of total loans, in 4^th quarter 2011. For the full year 2012, Old National reported net charge-offs of $8.3 million, or .17% of total loans, compared to $21.7 million, or .49% of total loans, in 2011.

Excluding covered loans, provision expense for the 4^th quarter of 2012 was $1.8 million, compared to ($.3) million in 3^rd quarter 2012 and $.1 million in 4^th quarter 2011. Old National’s net charge-offs for the 4^th quarter, excluding covered loans, were $3.2 million, compared to ($.4) million reported in 3^rd quarter 2012 and significantly lower than the $8.2 million in net charge-offs reported in 4^th quarter 2011. Excluding covered loans, for the full year 2012, Old National reported provision expense of ($1.0) million compared to $6.5 million in 2011. Additionally, net loan charge-offs for the full year 2012 fell to .16%—a substantial decrease from Old National’s full year 2011 mark of .53%.

Excluding covered loans, Old National’s allowance for loan losses at December 31, 2012, was $49.0 million, or 1.02% of total loans, compared to an allowance of $50.4 million, or 1.05% of total loans at September 30, 2012, and $57.1 million, or 1.38% of total loans, at December 31, 2011. Excluding covered loans, the coverage of allowance to non-performing loans stood at 31% at December 31, 2012, compared to 29% at September 30, 2012.

“2012 was a year of notable improvement in our credit quality ratios, with the most recent quarter exhibiting meaningful progress,” stated Daryl Moore, Old National’s Chief Credit Officer. “We’ve not only experienced solid performance in our core portfolio, but we have made notable progress in working through the loan portfolio of our recent acquisitions. As is typical, we anticipate some variability of the portfolio during 2013. We will continue to closely monitor borrower’s financial statements and the potential changes of individual loans.”

The following table presents certain credit quality metrics related to Old National’s loan portfolio:

2. ENHANCE MANAGEMENT DISCIPLINE

Expense Management

Old National reported total noninterest expenses of $99.4 million for the 4^th quarter of 2012, compared to $89.0 million in the 3^rd quarter of 2012 and $93.7 million for the 4^th quarter of 2011. Noninterest expenses for the 4^th quarter of 2012 included $3.7 million of Indiana Community-related expenses (of which $2.0 million were integration and conversion charges), $2.6 million in branch optimization expense, $1.9 million for the extinguishment of debt and a $1.0 million contribution to the ONB Foundation. Noninterest expenses for the 3^rd quarter of 2012 included $5.5 million of Indiana Community-related expenses – of which $4.9 million were integration and conversion charges, and $.8 million in branch optimization expense.

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Capital Management

Old National’s capital position remained well above industry requirements at December 31, 2012, with regulatory tier 1 and total risk-based capital ratios of 13.7% and 14.8%, respectively, compared to 12.9% and 14.1% at September 30, 2012, and 13.5% and 15.0% at December 31, 2011. This strong capital position allowed the company to be active during the quarter in the board-authorized buyback program, as Old National repurchased 250,000 shares in the open market during the quarter.

The ratio of tangible common equity to tangible assets stood at 9.01% at December 31, 2012, compared to 9.05% at September 30, 2012, and 8.97% at December 31, 2011. Refer to Table 1 for Non-GAAP reconciliations.

3. ACHIEVE CONSISTENT QUALITY EARNINGS

Balance Sheet and Net Interest Margin

At December 31, 2012, Old National’s total loans stood at $5.209 billion compared to $5.253 billion at September 30, 2012. Excluding covered loans, Old National’s total loan portfolio grew $32.6 million, to $4.837 billion at December 31, 2012, from $4.804 billion at September 30, 2012. Contributing to this increase in organic loan growth was a $48.2 million increase in residential real estate loans and a $42.9 million increase in commercial loans which more than offset the declines in commercial real estate and consumer loans. For the 4^th quarter 2012, average total loans were $5.227 billion, a $398.9 million increase from the $4.828 billion for the 3^rd quarter 2012, and primarily due to the acquisition of Indiana Community Bancorp, which closed on September 15, 2012.

Total investments, including money market accounts, increased $189.0 million to $2.990 billion at December 31, 2012, from $2.801 billion at September 30, 2012. Average total investments increased $122.0 million to $2.866 billion at December 31, 2012, from $2.744 billion at September 30, 2012. The increase in average balances is primarily attributable to the acquisition of Indiana Community. Securities gains for the 4^th quarter (net of $.3 million of other-than-temporary impairment) totaled $4.2 million, compared to 3^rd quarter securities gains of $2.7 million (net of $.2 million of other-than-temporary impairment).

Total core deposits, including demand and interest-bearing deposits, grew organically during the quarter and stood at $7.279 billion at December 31, 2012, an increase of $60.7 million over the September 30, 2012, balance of $7.218 billion. On average, total core deposits increased to $7.187 billion during 4^th quarter 2012 compared to $6.679 billion during 3^rd quarter 2012. The increase in average balances was primarily attributable to the acquisition of Indiana Community.

For 4^th quarter 2012, Old National reported net interest income of $84.4 million compared to $74.1 million in 3^rd quarter 2012, and $76.6 million for 4th quarter 2011. Included in 4^th quarter 2012 net interest income is $5.8 million associated with the Indiana Community acquisition, $2.1 million associated with the Monroe acquisition, and $11.2 million associated with the Integra acquisition, related to the accretion of purchase accounting discounts. Included in 3^rd quarter 2012 net interest income is $.3 million associated with the Indiana Community acquisition, $2.2 million associated with the Monroe acquisition, and $9.1 million associated with the Integra acquisition, related to the accretion of purchase accounting discounts.

Net interest income on a fully taxable equivalent basis was $87.9 million for 4th quarter 2012 and represented a net interest margin on total average earning assets of 4.34%. This compares favorably to net interest income on a fully taxable equivalent basis of $77.5 million and a margin of 4.09% in 3^rd quarter 2012 and net interest income on a fully taxable equivalent basis of $79.6 million and a margin of 4.20% for 4^th quarter 2011. Included in 4^th quarter 2012 net interest margin is 29 basis points associated with the Indiana Community acquisition, 10 basis points associated with the Monroe acquisition and 55 basis points associated with the Integra acquisition, related to the accretion of purchase accounting discounts. Included in 3^rd quarter 2012 net interest margin is 2 basis points associated with the Indiana Community acquisition, 12 basis points associated with the Monroe acquisition and 48 basis points associated with the Integra acquisition, related to the accretion of purchase accounting discounts. Refer to Tables A and B for Non-GAAP taxable equivalent reconciliations.

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For the full year 2012, net interest income on a fully taxable equivalent basis was $321.9 million and represented a net interest margin on total average earning assets of 4.23%. This compares favorably to net interest income on a fully taxable equivalent basis of $284.7 million and a margin of 3.87% for 2011. Included in 2012’s and 2011’s net interest margins is $57.5 million and $36.9 million, respectively, associated with the various acquisitions related to the accretion of purchase account discounts. Refer to Table C for Non-GAAP taxable equivalent reconciliations.

Fees, Service Charges and Other Revenue

For 4^th quarter 2012 total fees, service charges and other revenue were $46.9 million compared to $38.0 million in 3^rd quarter 2012 and $46.1 million in 4^th quarter 2011. The 4^th quarter of 2012 included a benefit of $.7 million from the change in indemnification asset relating to the acquisition of Integra Bank, compared to a reduction of $4.9 million in 3^rd quarter 2012 and a reduction of $.1 million in 4^th quarter 2011. The Indiana Community acquisition contributed an additional $1.8 million in fees, service charges and other revenue during the current quarter.

About Old National

Old National Bancorp (NYSE: ONB) is the largest financial services holding company headquartered in Indiana and, with $9.5 billion in assets, ranks among the top 100 banking companies in the U.S. Since its founding in Evansville in 1834, Old National has focused on community banking by building long-term, highly valued partnerships with clients in its primary footprint of Indiana, Illinois and Kentucky. In addition to providing extensive services in retail and commercial banking, wealth management, investments and brokerage, Old National also owns Old National Insurance, one of the 100 largest brokers in the U.S. For more information and financial data, please visit Investor Relations at oldnational.com.

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Table 1: Non-GAAP Reconciliation-Tangible Equity to Tangible Assets

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OLD NATIONAL BANCORP

Financial Highlights (Table A)

N/M = Not meaningful.

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OLD NATIONAL BANCORP

Financial Highlights (Table B)

N/M = Not meaningful.

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OLD NATIONAL BANCORP

Financial Highlights (Table C)

N/M = Not meaningful.

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