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County · code 21161

Mason CountyKentucky

Mason County is in Kentucky and was created in 1789 from Bourbon County by Virginia. The county seat is Maysville.

  • Founded1789
  • County seatMaysville
  • Named forGeorge Mason
  • Land area240 sq mi + 6.3 sq mi water
  • Population17,120 2020 Census
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Updated

RobertsonFlemingBrackenBrown, OHAdams, OHLewis Maysville Census outline · seat marked

Where it is

Mason on the map of Kentucky

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

Adair CountyAllen CountyAnderson CountyBallard CountyBarren CountyBath CountyBell CountyBoone CountyBourbon CountyBoyd CountyBoyle CountyBracken CountyBreathitt CountyBreckinridge CountyBullitt CountyButler CountyCaldwell CountyCalloway CountyCampbell CountyCarlisle CountyCarroll CountyCarter CountyCasey CountyChristian CountyClark CountyClay CountyClinton CountyCrittenden CountyCumberland CountyDaviess CountyEdmonson CountyElliott CountyEstill CountyFayette CountyFleming CountyFloyd CountyFranklin CountyFulton CountyGallatin CountyGarrard CountyGrant CountyGraves CountyGrayson CountyGreen CountyGreenup CountyHancock CountyHardin CountyHarlan CountyHarrison CountyHart CountyHenderson CountyHenry CountyHickman CountyHopkins CountyJackson CountyJefferson CountyJessamine CountyJohnson CountyKenton CountyKnott CountyKnox CountyLarue CountyLaurel CountyLawrence CountyLee CountyLeslie CountyLetcher CountyLewis CountyLincoln CountyLivingston CountyLogan CountyLyon CountyMcCracken CountyMcCreary CountyMcLean CountyMadison CountyMagoffin CountyMarion CountyMarshall CountyMartin CountyMeade CountyMenifee CountyMercer CountyMetcalfe CountyMonroe CountyMontgomery CountyMorgan CountyMuhlenberg CountyNelson CountyNicholas CountyOhio CountyOldham CountyOwen CountyOwsley CountyPendleton CountyPerry CountyPike CountyPowell CountyPulaski CountyRobertson CountyRockcastle CountyRowan CountyRussell CountyScott CountyShelby CountySimpson CountySpencer CountyTaylor CountyTodd CountyTrigg CountyTrimble CountyUnion CountyWarren CountyWashington CountyWayne CountyWebster CountyWhitley CountyWolfe CountyWoodford CountyMason County Mason
Counties of Kentucky · Mason highlighted

History

Formed in 1789 from Bourbon County

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

Mason County was created by Virginia in 1789 from Bourbon County, and named after George Mason. When Kentucky became a state in 1792, Mason became a Kentucky county and subsequently lost territory to the creation of Campbell, Bracken, Fleming, Floyd, Nicholas, Greenup, Lewis, and Robertson counties.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries; the 5 that matter most are shown first.

  1. 1789
    Mason County created Mason created by Virginia from Bourbon.
    from Bourbon
    · Hening, 12:658-659
  2. 1792
    Became part of Kentucky Mason became a Kentucky county when the state of Kentucky was created from the Kentucky District of Virginia. · Hening, 11:85; U.S. Stat., vol. 1, ch. 4 [1791]/p 189
  3. 1797
    Lost territory Mason lost to creation of Bracken.
    to Bracken
    · Ky. Acts 1796-1797, 5th assy., 1st sess., sec. 1/pp. 5-6
  4. 1798
    Lost territory Mason lost to creation of Fleming.
    to Fleming
    · Ky. Acts 1798, 6th assy., 2d sess., ch. 32, sec. 1/pp. 53-55
  5. 1800
    Lost territory Mason lost to creation of Floyd and Nicholas.
    to Floydto Nicholas
    · Ky. Acts 1799, 8th assy., ch. 11, secs. 1, 6/pp. 31-33 and ch. 73, sec. 1/pp. 150-152
Show all 13 changes (8 more, mostly small adjustments)
  1. 1789
    Mason County created Mason created by Virginia from Bourbon.
    from Bourbon
    · Hening, 12:658-659
  2. 1792
    Became part of Kentucky Mason became a Kentucky county when the state of Kentucky was created from the Kentucky District of Virginia. · Hening, 11:85; U.S. Stat., vol. 1, ch. 4 [1791]/p 189
  3. 1795
    Lost territory Mason lost to creation of Campbell and lost small area to Harrison.
    to Campbellto Harrison
    · Ky. Acts 1794, 3d assy., ch. 19, sec. 1/pp, 27-28
  4. 1797
    Lost territory Mason lost to creation of Bracken.
    to Bracken
    · Ky. Acts 1796-1797, 5th assy., 1st sess., sec. 1/pp. 5-6
  5. 1798
    Lost territory Mason lost to creation of Fleming.
    to Fleming
    · Ky. Acts 1798, 6th assy., 2d sess., ch. 32, sec. 1/pp. 53-55
  6. 1800
    Lost territory Mason lost to creation of Floyd and Nicholas.
    to Floydto Nicholas
    · Ky. Acts 1799, 8th assy., ch. 11, secs. 1, 6/pp. 31-33 and ch. 73, sec. 1/pp. 150-152
  7. 1804
    Lost territory Mason lost to creation of Greenup.
    to Greenup
    · Ky. Acts 1803, 12th assy., ch. 76, sec. 1/pp. 113-115
  8. 1807
    Lost territory Mason lost to creation of Lewis.
    to Lewis
    · Ky. Acts 1806, 15th assy., sec. 1/p. 145-147
  9. 1854
    Lost territory Mason lost small area to Bracken to accommodate local property owners.
    to Bracken
    · Ky. Acts 1853-1854, vol. 1, ch. 643, sec. 1/p. 89
  10. 1867
    Lost territory Mason lost to creation of Robertson.
    to Robertson
    · Ky. Acts 1867, Jan. adj. sess., ch. 1317, sec. 1/pp. 37-41, and ch. 1541, sec. 1/pp. 50-51
  11. 1868
    Gained territory Mason gained small area from Robertson to accommodate local property owner.
    from Robertson
    · Ky. Acts 1867-1868, vol. 2, ch. 759, sec. 1/pp. 207-208
  12. 1888
    Lost territory Mason lost small area to Fleming.
    to Fleming
    · Ky. Acts 1887-1888, vol. 1, ch. 199, sec. 1/p. 402
  13. 1890
    Gained territory Mason gained small area from Lewis to accommodate local property owners.
    from Lewis
    · Ky. Acts 1889-1890, vol. 1, ch. 450, sec. 1/p. 960

Land and parcels

What the maps cover in Mason

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

Mason by the Census

Population
17,120 2020 Census count
Housing units
8,160 2020 Census count
Land area
240 square miles
Water area
6.3 square miles
People per sq mi
71 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

Mason 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

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Questions

Common questions about Mason County

When was Mason County founded?
Mason County was founded in 1789, formed from Bourbon County, and named after George Mason.
What is the county seat of Mason County?
The county seat of Mason County is Maysville.
Is there an online parcel map for Mason County?
Not that we have found yet. Lot lines and owners of record are kept by the county assessor's office. When a public parcel map appears, it shows here.
Has Mason County's boundary or name changed?
Mason County was created in 1789 from Bourbon County. Since then the Atlas of Historical County Boundaries records 12 later changes, chiefly involving Bracken County, Fleming County and Lewis County.
Is my lot in a flood zone?
We do not have flood maps for Mason 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