See how they can become strengths. The folk at Whitewater Church saw the age of the membership as a weakness until they realized that the young families that they wanted to reach for the church were in need of surrogate grandparents. Pastor the whole community. As the only resident pastor in a Wyoming town, a friend accepted invitations to sing in the community choir, to serve with the volunteer fire department and to pray for community functions. And the church grew.
Rural people are relational people.
So are small church people. They want to be proud of their pastor. By being with people in the events of everyday life, opportunities will come to evangelize and pastor. Like Paul, be flexible enough to make contact with the unreached, the unchurched, in your field. Provide a balanced diet.