Wyomissing is a borough in Berks County, Pennsylvania, United States, established on July 2, 1906. As of the 2010 census the population was 10,461, compared to 8,587 at the 2000 census. The population growth of the borough was largely due to its merger in January 2002 with neighboring Wyomissing Hills. Wyomissing is the most populous borough in Berks County. The borough is recognized as a Tree City USA and selected as a "Contender" for the best places to live in Pennsylvania by Money magazine. Wyomissing is located central Berks County at 401958N755753W / 40.33278N 75.96472W / 40.33278; -75.96472 (40.332742, -75.964603). It is bordered by the city of Reading to the northeast and southeast, by West Reading directly to the east, by the borough of Shillington and Cumru Township to the south, by Spring Township to the west and northwest, and by Bern Township to the north. From south to north, the west side of Wyomissing is bordered by the unincorporated communities of Montrose Manor, Lincoln Park, West Wyomissing, West Lawn, Whitfield, and Colony Park. Directly to the north, in Bern Township, is the unincorporated community of Greenfields.