County · code 42051
Fayette CountyPennsylvania
Fayette County is a county in Pennsylvania with its seat in Uniontown. It was formed in 1783 from Westmoreland County.
- Founded1783
- County seatUniontown
- Named forGilbert du Motier, Marquis de Lafayette
- Land area791 sq mi + 8 sq mi water
- Population128,804 2020 Census
- Parcels mapped16,399 checked 15 October 2026
Where it is
Fayette 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 1783 from Westmoreland County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Fayette County was created on September 26, 1783, from Westmoreland County and named after Gilbert du Motier, Marquis de Lafayette. It gained additional territory from Westmoreland on February 17, 1784.
- 1783Fayette County created Fayette created from Westmoreland. · Pa. Stat., ch. 1016, sec. 1/11:197
- 1784Gained territory Fayette gained from Westmoreland. · Pa. Stat., ch. 1068, sec. 1/11:234
- 1807Changed Middle of Monongahela River fixed as boundary of adjoining counties: including Fayette (no change). · Pa. Stat., ch. 2863, sec. 1/18:644
Land and parcels
What the maps cover in Fayette
Who publishes each layer, how good it is, and when we last checked.
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Parcels Good enough
Lot lines and tax-map numbers for 16,399 parcels from Fayette County. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 23 February 2026 · checked 15 October 2026 -
Address points Missing
No public address points layer found for Fayette County yet.
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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
Fayette 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
Who to ask before you build, dig or sell
Official county pages only. We link to them; we do not copy them, because they change.
Inside a city or town, permits usually come from that city rather than the county.
Zoning and code
County government
- County government
The official website of Fayette County.
See your own lot on these maps
Open Fayette 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 Fayette County
- When was Fayette County founded?
- Fayette County was founded in 1783, formed from Westmoreland County, and named after Gilbert du Motier, Marquis de Lafayette.
- What is the county seat of Fayette County?
- The county seat of Fayette County is Uniontown.
- Is there an online parcel map for Fayette County?
- Yes. Fayette County publishes a parcel map of 16,399 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Fayette County's boundary or name changed?
- Fayette County was created in 1783 from Westmoreland County. Since then the Atlas of Historical County Boundaries records 1 later change, chiefly involving Westmoreland County.
- Who issues building permits in Fayette County?
- The county's page on building permits: Demolition Permit. Inside a city or town, ask that city first.
- Who issues septic and well permits in Fayette County?
- The county's page on septic systems and wells: Behavioral Health Administration.
- Is my lot in a flood zone?
- We do not have flood maps for Fayette County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby