County · code 42055
Franklin CountyPennsylvania
Franklin County is located in Pennsylvania and was created on September 9, 1784, from Cumberland County. The county seat is Chambersburg.
- Founded1784
- County seatChambersburg
- Named forBenjamin Franklin
- Land area772 sq mi + 0.6 sq mi water
- Population155,932 2020 Census
- Parcels mapped68,144 checked 15 October 2026
Where it is
Franklin on the map of Pennsylvania
Pennsylvania has 67 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1784 from Cumberland County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Franklin County was created from Cumberland County and named after Benjamin Franklin. In 1798, Franklin gained territory from Bedford County, and small boundary adjustments with Cumberland and Adams counties followed in 1835 and 1838.
- 1784Franklin County created Franklin created from Cumberland. · Pa. Stat., ch. 1107, sec. 1/11:359-360
- 1790Boundary clarified Boundary between Franklin and Cumberland clarified (no change).with Cumberlandno change· Pa. Stat., ch. 1498, sec. 1/13:475
- 1798
- 1835Gained territory Franklin gained small area from Cumberland. · Pa. Laws 1834-1835, no. 75, sec. 1/pp. 106-107
- 1838Lost territory Franklin lost small area to Adams. · Pa. Laws 1837-1838, no. 94, sec. 93/p. 607
- 1841Boundary clarified Boundary between Franklin and Perry redefined (no change).with Perryno change· Pa. Laws 1841, no. 111, sec. 5/p. 294
Land and parcels
What the maps cover in Franklin
Who publishes each layer, how good it is, and when we last checked.
-
Parcels Fallback
Lot lines and tax-map numbers for 68,144 parcels. Drawn for tax purposes: usually within a few feet of a survey, but not a survey. This copy is a fallback, not the county's own: use it as a guide and check the official record.
edited 13 May 2022 · checked 15 October 2026 -
Address points Missing
No public address points layer found for Franklin County yet.
-
Buildings Reference
Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026
- Official
- from the office that keeps the record
- Good enough
- a reliable statewide or national copy
- Fallback
- a guide only; check the official record
- Missing
- nothing public found yet
People and land
Franklin by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Franklin County's official site
We have found the county's site but not its offices yet; start there.
County government
- County government
The official website of Franklin County.
See your own lot on these maps
Open Franklin County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.
Questions
Common questions about Franklin County
- When was Franklin County founded?
- Franklin County was founded in 1784, formed from Cumberland County, and named after Benjamin Franklin.
- What is the county seat of Franklin County?
- The county seat of Franklin County is Chambersburg.
- Is there an online parcel map for Franklin County?
- Yes. A public source publishes a parcel map of 68,144 parcels, rated fallback here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Franklin County's boundary or name changed?
- Franklin County was created in 1784 from Cumberland County. Since then the Atlas of Historical County Boundaries records 3 later changes, most of them small boundary adjustments, chiefly involving Adams County, Bedford County and Cumberland County.
- Is my lot in a flood zone?
- We do not have flood maps for Franklin County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby