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County · code 21021

Boyle CountyKentucky

Boyle County is a Kentucky county with its county seat in Danville, formed in 1842.

  • Founded1842
  • County seatDanville
  • Named forJohn Boyle
  • Land area180 sq mi + 2.5 sq mi water
  • Population30,614 2020 Census
  • Parcels mapped13,205 checked 15 October 2026
Open the free map Click any parcel in Boyle County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

MercerLincolnCaseyGarrardWashingtonMarion Danville Census outline · seat marked

Where it is

Boyle on the map of Kentucky

Kentucky has 120 counties and county equivalents, each with its own records office. Shapes with a page are links.

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Counties of Kentucky · Boyle highlighted

History

Formed in 1842 from Lincoln County and Mercer County

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

Boyle County was created from Lincoln and Mercer counties in 1842. The county was named after John Boyle. Over the following decades, Boyle had small boundary adjustments with neighboring counties Casey and Garrard to accommodate local property owners.

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

  1. 1842
    Boyle County created Boyle created from Lincoln and Mercer.
    from Lincolnfrom Mercer
    · Ky. Acts 1841-1842, ch. 189, sec. 1/pp. 39-41, and ch. 365/p. 270
  2. 1844
    Lost territory Boyle lost small area to Mercer to accommodate local property owner.
    to Mercer
    · Ky. Acts 1843-1844, ch. 271, sec. 3/pp. 50-51
  3. 1878
    Gained territory Boyle gained small area from Casey to accommodate local property owners.
    from Casey
    · Ky. Acts 1877-1878, vol. 1, ch. 35, sec. 1/pp. 21-22
  4. 1882
    Lost territory Boyle lost small area to Garrard (act repealed 2 May 1888).
    to Garrard
    · Ky. Acts 1881-1882, vol. 1, ch. 421, sec. 1/p. 736
  5. 1888
    Gained territory Boyle gained small area from Casey to accommodate local property owner.
    from Casey
    · Ky. Acts 1887-1888, vol. 1, ch. 219, secs. 1-2/p. 456
  6. 1888
    Gained territory Boyle gained small area from Garrard (repealed act of 10 March 1882).
    from Garrard
    · Ky. Acts 1887-1888, vol. 3, ch. 1424, sec. 1/p. 733

Land and parcels

What the maps cover in Boyle

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

Boyle by the Census

Population
30,614 2020 Census count
Housing units
12,929 2020 Census count
Land area
180 square miles
Water area
2.5 square miles
People per sq mi
170 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

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

See your own lot on these maps

Open Boyle 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 Boyle County

When was Boyle County founded?
Boyle County was founded in 1842, formed from Lincoln County and Mercer County, and named after John Boyle.
What is the county seat of Boyle County?
The county seat of Boyle County is Danville.
Is there an online parcel map for Boyle County?
Yes. A public source publishes a parcel map of 13,205 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Boyle County's boundary or name changed?
Boyle County was created in 1842 from Lincoln County and Mercer County. Since then the Atlas of Historical County Boundaries records 5 later changes, most of them small boundary adjustments, chiefly involving Casey County, Garrard County and Mercer County.
Is my lot in a flood zone?
We do not have flood maps for Boyle 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