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County · code 28063

Jefferson CountyMississippi

Jefferson County is in Mississippi and covers 519.9 square miles. The county seat is Fayette.

  • Founded1799
  • County seatFayette
  • Named forThomas Jefferson
  • Land area520 sq mi + 7.3 sq mi water
  • Population7,260 2020 Census
  • Parcels mapped8,528 checked 14 October 2026
Open the free map Click any parcel in Jefferson County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

ClaiborneAdamsTensas, LACopiah Fayette Census outline · seat marked

Where it is

Jefferson on the map of Mississippi

Mississippi has 82 counties and county equivalents, each with its own records office. Shapes with a page are links.

Adams CountyAlcorn CountyAmite CountyAttala CountyBenton CountyBolivar CountyCalhoun CountyCarroll CountyChickasaw CountyChoctaw CountyClaiborne CountyClarke CountyClay CountyCoahoma CountyCopiah CountyCovington CountyDeSoto CountyForrest CountyFranklin CountyGeorge CountyGreene CountyGrenada CountyHancock CountyHarrison CountyHinds CountyHolmes CountyHumphreys CountyIssaquena CountyItawamba CountyJackson CountyJasper CountyJefferson Davis CountyJones CountyKemper CountyLafayette CountyLamar CountyLauderdale CountyLawrence CountyLeake CountyLee CountyLeflore CountyLincoln CountyLowndes CountyMadison CountyMarion CountyMarshall CountyMonroe CountyMontgomery CountyNeshoba CountyNewton CountyNoxubee CountyOktibbeha CountyPanola CountyPearl River CountyPerry CountyPike CountyPontotoc CountyPrentiss CountyQuitman CountyRankin CountyScott CountySharkey CountySimpson CountySmith CountyStone CountySunflower CountyTallahatchie CountyTate CountyTippah CountyTishomingo CountyTunica CountyUnion CountyWalthall CountyWarren CountyWashington CountyWayne CountyWebster CountyWilkinson CountyWinston CountyYalobusha CountyYazoo CountyJefferson County Jefferson
Counties of Mississippi · Jefferson highlighted

History

Founded in 1799

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

Jefferson County was formed in 1799, and named after Thomas Jefferson. Fayette is the county seat.

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

  1. 1799
    Jefferson County created Pickering (now Jefferson) created by Mississippi Territory from non-county area; Pickering included territory in present Mississippi and Alabama. · Rowland, Miss. Terr. Arch., 126-128; Toulmin, Statutes, ch. 1/pp. 2-3
  2. 1800
    Lost territory Pickering (now Jefferson) lost to creation of Washington (Alabama); Pickering eliminated from present Alabama.
    to Washington (Ala.)
    · Rowland, Miss. Terr. Arch., 238-239; Toulmin, Statutes, ch. 1/pp. 3-4
  3. 1802
    Renamed Pickering renamed Jefferson.
    formerly Pickering
    · Miss. Terr. Stat., p. 88
  4. 1802
    Lost territory Jefferson lost to creation of Claiborne.
    to Claiborne
    · Miss. Terr. Stat., p. 88
  5. 1802
    Lost territory Jefferson lost to Adams, and lost to creation of Non-County Area 1 when the Choctaw Indian boundary was implicitly adopted as the eastern limit of Jefferson.
    to Adams
    · Miss. Terr. Stat., p. 90
Show all 14 changes (9 more)
  1. 1799
    Jefferson County created Pickering (now Jefferson) created by Mississippi Territory from non-county area; Pickering included territory in present Mississippi and Alabama. · Rowland, Miss. Terr. Arch., 126-128; Toulmin, Statutes, ch. 1/pp. 2-3
  2. 1800
    Lost territory Pickering (now Jefferson) lost to creation of Washington (Alabama); Pickering eliminated from present Alabama.
    to Washington (Ala.)
    · Rowland, Miss. Terr. Arch., 238-239; Toulmin, Statutes, ch. 1/pp. 3-4
  3. 1802
    Renamed Pickering renamed Jefferson.
    formerly Pickering
    · Miss. Terr. Stat., p. 88
  4. 1802
    Lost territory Jefferson lost to creation of Claiborne.
    to Claiborne
    · Miss. Terr. Stat., p. 88
  5. 1802
    Lost territory Jefferson lost to Adams, and lost to creation of Non-County Area 1 when the Choctaw Indian boundary was implicitly adopted as the eastern limit of Jefferson.
    to Adams
    · Miss. Terr. Stat., p. 90
  6. 1803
    Lost territory Jefferson lost to Claiborne.
    to Claiborne
    · Miss. Terr. Stat., p. 90
  7. 1809
    Gained territory Jefferson gained from Adams and Franklin.
    from Adamsfrom Franklin
    · Miss. Terr. Stat., p. 99
  8. 1811
    Lost territory Jefferson lost to Claiborne; mistake in description clarified 12 February 1820.
    to Claiborne
    · Miss. Terr. Stat., pp. 100-101
  9. 1820
    Boundary clarified Jefferson boundary with Claiborne was clarified, correcting mistake of 7 December 1811 (no change).
    with Claiborneno change
    · Miss. Laws 1820, 3d sess., ch. 40/p. 61
  10. 1822
    Lost territory Jefferson lost to Franklin.
    to Franklin
    · Miss. Laws 1821-1822, 5th sess. adj., p. 274
  11. 1823
    Gained territory Jefferson gained from Franklin.
    from Franklin
    · Miss. Laws 1822-1823, 6th sess., ch. 36/p. 100
  12. 1871
    Changed Redefinition of Jefferson boundary with Claiborne unintentionally implied an overlap of jurisdiction, but officials and residents continued to observe the 1820 boundary line (no change).
    Claiborne
    · Miss. Rev. Code 1871, ch. 2, art. 2, pars. 20-89/pp. 12-29
  13. 1880
    Changed Redefinition of Jefferson boundary with Claiborne unintentionally implied a change that never took effect (no change).
    Claiborne
    · Miss. Rev. Code 1880, reg. sess., ch. 2, pars. 24-87/pp. 49-70
  14. 1886
    Boundary clarified Jefferson boundary with Claiborne was clarified, correcting mistake of 5 March 1880 (no change).
    with Claiborneno change
    · Miss. Laws 1886, reg. sess., ch. 73/p. 153

Land and parcels

What the maps cover in Jefferson

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

Jefferson by the Census

Population
7,260 2020 Census count
Housing units
3,346 2020 Census count
Land area
520 square miles
Water area
7.3 square miles
People per sq mi
14 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

Jefferson 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 Jefferson County

When was Jefferson County founded?
Jefferson County was founded in 1799, and named after Thomas Jefferson.
What is the county seat of Jefferson County?
The county seat of Jefferson County is Fayette.
Is there an online parcel map for Jefferson County?
Yes. Jefferson County publishes a parcel map of 8,528 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Jefferson County's boundary or name changed?
Jefferson County was created in 1799. Since then the Atlas of Historical County Boundaries records 9 later changes, chiefly involving Claiborne County, Franklin County and Adams County. It was formerly called Pickering.
Is my lot in a flood zone?
We do not have flood maps for Jefferson 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