Saint John - Dinwiddie, Est. 1907 In the southern portion of Dinwiddie County, beginning at the junction of the Prince George and Dinwiddie County lines, north along the Prince George-Dinwiddie County line to the Petersburg city line, continue along the Petersburg-Dinwiddie line to VA-142, west on VA-142 to US-1, south on US-1 to US-460, west on US-460 to VA-632 (Agers Road), north on VA-632 to VA-601, follow a direct line north to a point in the center of the Appomattox River where Chesterfield and Dinwiddie Counties meet, west along the Chesterfield-Dinwiddie line to the intersection of the Amelia-Chesterfield-Dinwiddie County lines, southwest along Namozine Creek to a point directly north of the intersection of Interstate 85 and V A-40, directly south to VA-650, south on VA-650 to Turkey Egg Creek, south along Turkey Egg Creek to its intersection with the Dinwiddie-Brunswick County line, east and north along the Dinwiddie­-Brunswick, Dinwiddie-Greensville, Dinwiddie-Sussex, Dinwiddie-Prince George County lines to the Petersburg city line, which is the starting point