The present investigation studied early intervention service provision for young children. A total of 377 early intervention programs in Ohio provided data on the number of young handicapped and "at risk" children served, the types of services provided for children and their parents, and financial support. Although a large number of children were served, the proportion of young children receiving early intervention services was less than expected from estimates of the prevalence of handicapping and risk conditions in the population. Younger children (0-2 years) and those from rural areas were particularly underserved. While a wide range of services were provided for children and their parents, there was considerable variability in the proportion of programs providing these services. Public sources of funding provided the bulk of support for early intervention services, while private sources provided supplementary, but decreasing, support for services. (Author/RH)