In the past few decades, senior centers have developed at an exponential rate. To investigate elderly citizens' knowledge of senior center activities and services, 250 white older adults (125 center users and 125 nonusers) from a small urban community were personally interviewed about the services and activities provided by their local senior center. An analysis of the demographic data showed that the subjects were mostly married female homeowners with a median age of 71. Annual income was under $7500, and the majority had lived in the community for 50 years. All subjects were aware of the existence of the community senior center and 99 percent could correctly identify its location. Only a small minority of the sample was aware of any services, other than the 83 percent who were aware of the hot lunch program. The local newspaper, family, and friends were the most cited sources of information by nonusers. As would be expected, center users were more aware of activities than nonusers. Dinner parties, cards, square dances, bingo, trips, and clubs, respectively, were the most recognized activities of the senior center. Center users identified the senior center publication as their major source of information. (BL)