Exhibit 11 CITIZENS FIRST BANCORP, INC. AND SUBSIDIARY COMPUTATION OF PER SHARE INCOME (dollars in thousands, except per share amounts) For the Three Months Ended March 31 1994 1993 Income Income before extraordinary credit and change in accounting principle $ 8,739 $ 7,691 Less: Preferred cash dividend requirements 42 44 1. Amount applicable to common shares - primary $ 8,697 $ 7,647 Income before cumulative effect of change in accounting principle $ 8,739 $ 7,691 Plus: Interest on convertible debentures, net of federal income tax 208 212 2. Amount applicable to common shares - fully diluted $ 8,947 $ 7,903 Net income $ 8,739 $14,859 Less: Preferred cash dividend requirements 42 44 3. Amount applicable to common shares - primary $ 8,697 $14,815 Net income $ 8,739 $14,859 Plus: Interest on convertible debentures, net of federal income tax 208 212 4. Amount applicable to common shares - fully diluted $ 8,947 $15,071 Number of Shares Weighted average common shares issued 50,022,844 49,968,010 Less: Average shares held in the treasury 146,690 146,690 Plus: Average common share equivalent - primary 354,240 214,519 5. Average primary shares 50,230,394 50,035,839 Plus: Average preferred converted to common shares 591,000 613,036 Average debentures converted to common shares 1,863,591 1,863,591 Average common share equivalent - fully diluted 881 115,786 6. Average fully diluted shares 52,685,866 52,628,252 Income Per Common Share Primary Income before cumulative effect of change in accounting principle (line 1 divided by line 5) $.17 $.15 Net income (line 3 divided by line 5) .17 .30 Fully diluted Income before cumulative effect of change in accounting principle (line 2 divided by line 6) .17 .15 Net income (line 4 divided by line 6) .17 .29 17