adams_county,_pennsylvania | has to its west | franklin_county,_pennsylvania <tsp> adams_county,_pennsylvania | has to its southeast | carroll_county,_maryland <tsp> 11th_mississippi_infantry_monument | established | 2000 <tsp> adams_county,_pennsylvania | has to its north | cumberland_county,_pennsylvania <tsp> adams_county,_pennsylvania | has to its southwest | frederick_county,_maryland <tsp> 11th_mississippi_infantry_monument | location | adams_county,_pennsylvania <sep> adams county is a county in the commonwealth of pennsylvania as of the 2020 census, the population was 103,852 its county seat is gettysburg the county was created on january 22, 1800, from part of york county, and was named for the second president of the united states, john adams on july 1–3, 1863, a crucial battle of the american civil war was fought near gettysburg; adams county as a result is a center of civil war tourism 
the 11th mississippi infantry monument is found in adams county. pennsylvania and has been established since the year 2000. to the west of adams county lies franklin county and to the north is cumberland county - both also of pennsylvania. to the southeast of adams county lies carroll county and to the southwest lies frederick county . both of maryland.county pennsylvania county adams county pennsylvania