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County · code 42133

York CountyPennsylvania

York County is a county in Pennsylvania with its seat in York. It was established on August 19, 1749.

  • Founded1749
  • County seatYork
  • Named forYork, England
  • Land area904 sq mi + 6.4 sq mi water
  • Population456,438 2020 Census
  • Parcels mapped174,066 checked 16 October 2026
Open the free map Click any parcel in York County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

Carroll, MDBaltimore, MDAdamsLancasterDauphinHarford, MDCumberland York Census outline · seat marked

Where it is

York on the map of Pennsylvania

Pennsylvania has 67 counties and county equivalents, each with its own records office. Shapes with a page are links.

Adams CountyAllegheny CountyArmstrong CountyBeaver CountyBedford CountyBerks CountyBlair CountyBradford CountyBucks CountyButler CountyCambria CountyCameron CountyCarbon CountyCentre CountyChester CountyClarion CountyClearfield CountyClinton CountyColumbia CountyCrawford CountyCumberland CountyDauphin CountyDelaware CountyElk CountyErie CountyFayette CountyForest CountyFranklin CountyFulton CountyGreene CountyHuntingdon CountyIndiana CountyJefferson CountyJuniata CountyLackawanna CountyLancaster CountyLawrence CountyLebanon CountyLehigh CountyLuzerne CountyLycoming CountyMcKean CountyMercer CountyMifflin CountyMonroe CountyMontgomery CountyMontour CountyNorthampton CountyNorthumberland CountyPerry CountyPhiladelphia CountyPike CountyPotter CountySchuylkill CountySnyder CountySomerset CountySullivan CountySusquehanna CountyTioga CountyUnion CountyVenango CountyWarren CountyWashington CountyWayne CountyWestmoreland CountyWyoming CountyYork County York
Counties of Pennsylvania · York highlighted

History

Formed in 1749 from Lancaster County

An old deed may name a county that no longer exists, or a boundary that has since moved.

York County was created from Lancaster County. In 1751, it exchanged territory with Cumberland County. In 1800, Adams County was formed from York County's territory.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries.

  1. 1749
    York County created York created from Lancaster.
    from Lancaster
    · Pa. Stat., ch. 377, sec. 1/5:71, 73
  2. 1751
    Exchanged territory York exchanged with Cumberland.
    with Cumberland
    · Pa. Stat., ch. 387, sec. 1/5:106-107
  3. 1800
    Lost territory York lost to the creation of Adams.
    to Adams
    · Pa. Stat., ch. 2097, sec. 1/16:392
  4. 1823
    Boundary clarified Boundary between York and Cumberland clarified (no change).
    with Cumberlandno change
    · Pa. Laws 1822-1823, ch. 122, sec. 4/p. 193

Land and parcels

What the maps cover in York

Who publishes each layer, how good it is, and when we last checked.

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

York by the Census

Population
456,438 2020 Census count
Housing units
187,187 2020 Census count
Land area
904 square miles
Water area
6.4 square miles
People per sq mi
505 population ÷ land area

Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.

Rules and offices

York County's official site

We have found the county's site but not its offices yet; start there.

County government

See your own lot on these maps

Open York 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.

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Questions

Common questions about York County

When was York County founded?
York County was founded in 1749, formed from Lancaster County, and named after York, England.
What is the county seat of York County?
The county seat of York County is York.
Is there an online parcel map for York County?
Yes. A public source publishes a parcel map of 174,066 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has York County's boundary or name changed?
York County was created in 1749 from Lancaster County. Since then the Atlas of Historical County Boundaries records 2 later changes, chiefly involving Adams County and Cumberland County.
Is my lot in a flood zone?
We do not have flood maps for York County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby

Counties next door