Above : Parish Boundaries - extract from Dorset Council's Explorer Mapping System
Winterbourne Abbas Parish : 612.463 Hectares (1513.43 acres) - Population 2021 Census : 374; 165 dwellings; Electorate Nos : 278 (4/2024)
Winterbourne Steepleton Parish : 739.889 Hectares (1828.31 acres) - Population 2021 Census : 286; 103 dwellings; Electorate Nos : 233 (4/2024)
Below : General map of Winterbourne Abbas village area
(note the parish boundary with Steepleton is just to the east (RHS) of the school).
Here's a link to the excellent Dorset Explorer mapping system. This holds map based Dorset Council data
https://gi.dorsetcouncil.gov.uk/dorsetexplorer#map=12.82/50.73218/-2.44579/0&basemap=1/100/100