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County · code 51109

Louisa CountyVirginia

Louisa County is a county in Virginia, with its seat in Louisa. It was formed in 1742.

  • Founded1742
  • County seatLouisa
  • Named forLouise of Great Britain
  • Land area495 sq mi + 15 sq mi water
  • Population37,596 2020 Census
  • Parcels mapped33,978 checked 15 October 2026
Open the free map Click any parcel in Louisa County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

GoochlandOrangeFluvannaSpotsylvaniaHanoverAlbemarle Louisa Census outline · seat marked

Where it is

Louisa on the map of Virginia

Virginia has 133 counties and county equivalents, each with its own records office. Shapes with a page are links.

Accomack CountyAlbemarle CountyAlleghany CountyAmelia CountyAmherst CountyAppomattox CountyArlington CountyAugusta CountyBath CountyBedford CountyBland CountyBotetourt CountyBrunswick CountyBuchanan CountyBuckingham CountyCampbell CountyCaroline CountyCarroll CountyCharles City CountyCharlotte CountyChesterfield CountyClarke CountyCraig CountyCulpeper CountyCumberland CountyDickenson CountyDinwiddie CountyEssex CountyFairfax CountyFauquier CountyFloyd CountyFluvanna CountyFranklin CountyFrederick CountyGiles CountyGloucester CountyGoochland CountyGrayson CountyGreene CountyGreensville CountyHalifax CountyHanover CountyHenrico CountyHenry CountyHighland CountyIsle of Wight CountyJames City CountyKing and Queen CountyKing George CountyKing William CountyLancaster CountyLee CountyLoudoun CountyLunenburg CountyMadison CountyMathews CountyMecklenburg CountyMiddlesex CountyMontgomery CountyNelson CountyNew Kent CountyNorthampton CountyNorthumberland CountyNottoway CountyOrange CountyPage CountyPatrick CountyPittsylvania CountyPowhatan CountyPrince Edward CountyPrince George CountyPrince William CountyPulaski CountyRappahannock CountyRichmond CountyRoanoke CountyRockbridge CountyRockingham CountyRussell CountyScott CountyShenandoah CountySmyth CountySouthampton CountySpotsylvania CountyStafford CountySurry CountySussex CountyTazewell CountyWarren CountyWashington CountyWestmoreland CountyWise CountyWythe CountyYork CountyAlexandria cityBristol cityBuena Vista cityCharlottesville cityChesapeake cityColonial Heights cityCovington cityDanville cityEmporia cityFairfax cityFalls Church cityFranklin cityFredericksburg cityGalax cityHampton cityHarrisonburg cityHopewell cityLexington cityLynchburg cityManassas cityManassas Park cityMartinsville cityNewport News cityNorfolk cityNorton cityPetersburg cityPoquoson cityPortsmouth cityRadford cityRichmond cityRoanoke citySalem cityStaunton citySuffolk cityVirginia Beach cityWaynesboro cityWilliamsburg cityWinchester cityLouisa County Louisa
Counties of Virginia · Louisa highlighted

History

Formed in 1742 from Hanover County

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

Louisa County was created from Hanover County in 1742 and named after Louise of Great Britain. In 1761, Louisa lost territory to Albemarle County.

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

  1. 1742
    Louisa County created Louisa created from Hanover.
    from Hanover
    · Hening, 5:208-209
  2. 1761
    Lost territory Louisa lost to Albemarle.
    to Albemarle
    · Hening, 7:419-423

Land and parcels

What the maps cover in Louisa

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

Louisa by the Census

Population
37,596 2020 Census count
Housing units
17,489 2020 Census count
Land area
495 square miles
Water area
15 square miles
People per sq mi
76 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

Louisa 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 Louisa 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 Louisa County

When was Louisa County founded?
Louisa County was founded in 1742, formed from Hanover County, and named after Louise of Great Britain.
What is the county seat of Louisa County?
The county seat of Louisa County is Louisa.
Is there an online parcel map for Louisa County?
Yes. Virginia Geographic Information Network (VGIN), Virginia Department of Emergency Management publishes a parcel map of 33,978 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Louisa County's boundary or name changed?
Louisa County was created in 1742 from Hanover County. Since then the Atlas of Historical County Boundaries records 1 later change, chiefly involving Albemarle County.
Is my lot in a flood zone?
We do not have flood maps for Louisa 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