To understand Scotland’s population histories it is frequently necessary to explore what was happening below Regional level. A database of Scottish civil parish populations from 1755 to 2001 is used to explore changes in population density and growth over time. Maps show density in 1801 and in 2001, decade population peaked in each parish, and growth from 1801 to 1851, 1851 to 1891, 1891 to 1951, and 1951 to 2000. Attention is drawn to some of the principal causes of change, including modifications to agrarian systems, fishing, new and declining industries, mining, on commuting to nearby major urban centres and oil-related development.