The second Housing Assistance Supply Experiment survey of neighborhoods was conducted in Brown County, Wisconsin, from November 1976 to October 1977. The survey had two parts; compilation of neighborhood local sources (NLS), and observation of neighborhood street segments (NSOB). The NLS collected information on access to public facilities and services; characteristics of highways, arterials, and railroads; and statistics on employment, schools, and crime. The NSOB collected observation data on neighborhood characteristics such as types of land use; condition of residential buildings, landscaping, sidewalks, and streets; and overall cleanliness. The audit determined the data from both surveys to be complete and of good quality. Only three NLS variables have appreciable item nonresponse rates: park attendance, theft, and school achievement test scores. The NSOB's averages of neighborhood condition ratings are sufficiently varied and consistent to serve as useful analytical indexes of neighborhood quality.