Depending on the target school, and the contents of the rest of your application, the post college extra-curriculars can be very important. These activities are a way to show that there is more to you than your career, and that you have multiple dimensions. They are also a means to exhibit leadership, teamwork and other important skills. With many apps, you may find that just writing about work leads to a very boring application. Or perhaps you cannot even answer some of the questions because you do not have content. Your church activities may be enough, or perhaps you have some activities that you have engaged in through your office. Keep in mind that it is not about quantity of activities - it really is about the quality of your involvements.