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County · code 28151

Washington CountyMississippi

Washington County is a county in Mississippi with its seat in Greenville. It was created on January 29, 1827, from Warren and Yazoo counties and named after George Washington.

  • Founded1827
  • County seatGreenville
  • Named forGeorge Washington
  • Land area724 sq mi + 36 sq mi water
  • Population44,922 2020 Census
  • Parcels mapped30,244 checked 16 October 2026
Open the free map Click any parcel in Washington County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

Chicot, ARSharkeyHumphreysSunflowerBolivarIssaquena Greenville Census outline · seat marked

Where it is

Washington 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 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 CountyWayne CountyWebster CountyWilkinson CountyWinston CountyYalobusha CountyYazoo CountyWashington County Washington
Counties of Mississippi · Washington highlighted

History

Formed in 1827 from Warren County and Yazoo County

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

Washington County was created from Warren and Yazoo counties in 1827. The county went through numerous boundary adjustments over the following decades, losing territory to the creation of Carroll, Tallahatchie, Yalobusha, Bolivar, De Soto, Panola, and Tunica counties, and to the growth of neighboring counties including Warren, Yazoo, Issaquena, Sharkey, and Sunflower.

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

  1. 1827
    Washington County created Washington created from Warren and Yazoo.
    from Warrenfrom Yazoo
    · Miss. Laws 1827, 10th sess., ch. 80, sec. 1/p. 113
  2. 1828
    Lost territory Washington lost to Yazoo.
    to Yazoo
    · Miss. Laws 1828, 11th sess., ch. 57/p. 61
  3. 1828
    Lost territory Washington lost to Warren (part of the southern boundary was uncertain and the line is estimated).
    to Warren
    · Miss. Laws 1828, 11th sess., ch. 75, sec. 4/p. 87
  4. 1833
    Exchanged territory Washington exchanged with Yazoo and lost to creation of Carroll, Tallahatchie, Yalobusha, and Non-County Area 12 that was attached to Tallahatchie.
    with Yazoowith Carrollwith Tallahatchiewith Yalobusha
    · Miss. Laws 1833, 17th sess., ch. 5, secs. 8-10, 17-22/pp. 35, 38-39
  5. 1836
    Lost territory Washington lost to creation of Bolivar, De Soto, Panola, and Tunica.
    to Bolivarto De Sototo Panolato Tunica
    · Miss. Laws 1836, reg. sess., pars. 2, 9-13/pp. 2, 12-14
Show all 13 changes (8 more)
  1. 1827
    Washington County created Washington created from Warren and Yazoo.
    from Warrenfrom Yazoo
    · Miss. Laws 1827, 10th sess., ch. 80, sec. 1/p. 113
  2. 1828
    Lost territory Washington lost to Yazoo.
    to Yazoo
    · Miss. Laws 1828, 11th sess., ch. 57/p. 61
  3. 1828
    Lost territory Washington lost to Warren (part of the southern boundary was uncertain and the line is estimated).
    to Warren
    · Miss. Laws 1828, 11th sess., ch. 75, sec. 4/p. 87
  4. 1829
    Changed Non-County Area 6 (unceded Indian territory) was attached to Washington. · Miss. Laws 1829, 12th sess., ch. 77, secs. 1-2/pp. 81-82
  5. 1830
    Gained territory Washington gained almost all of attached Non-County Area 6, exchanged small areas on the Yazoo River with Yazoo. Washington was separated into two parts by this law.
    from Yazoo
    · Miss. Laws 1830, 13th sess., ch. 70/p. 89
  6. 1833
    Exchanged territory Washington exchanged with Yazoo and lost to creation of Carroll, Tallahatchie, Yalobusha, and Non-County Area 12 that was attached to Tallahatchie.
    with Yazoowith Carrollwith Tallahatchiewith Yalobusha
    · Miss. Laws 1833, 17th sess., ch. 5, secs. 8-10, 17-22/pp. 35, 38-39
  7. 1836
    Lost territory Washington lost to creation of Bolivar, De Soto, Panola, and Tunica.
    to Bolivarto De Sototo Panolato Tunica
    · Miss. Laws 1836, reg. sess., pars. 2, 9-13/pp. 2, 12-14
  8. 1839
    Lost territory Washington lost to Warren.
    to Warren
    · Miss. Laws 1839, adj. sess., ch. 94/p. 226
  9. 1844
    Lost territory Washington lost to creation of Issaquena.
    to Issaquena
    · Miss. Laws 1844, reg. sess., ch. 47, sec. 1/p. 216
  10. 1850
    Lost territory Washington lost to Yazoo.
    to Yazoo
    · Miss. Laws 1850, reg. sess., ch. 178/p. 267
  11. 1871
    Gained territory Washington gained from Bolivar, lost to Sunflower.
    from Bolivarfrom Sunflower
    · Miss. Laws 1871, reg. sess., ch. 238, secs. 1-2, 15/pp. 587-588, 592
  12. 1876
    Lost territory Washington lost to creation of Sharkey.
    to Sharkey
    · Miss. Laws 1876, reg. sess., ch. 63, secs. 1-4, 14/pp. 57-58, 62
  13. 1918
    Lost territory Washington lost to creation of Humphreys.
    to Humphreys
    · HRS Miss., Humphreys, 6; Miss. Laws 1918, reg. sess., ch. 348, secs. 1-2/pp. 368-369; Chancery Clerk, Humphreys Co., telephone query, 15 November 1989

Land and parcels

What the maps cover in Washington

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

Washington by the Census

Population
44,922 2020 Census count
Housing units
20,879 2020 Census count
Land area
724 square miles
Water area
36 square miles
People per sq mi
62 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

Washington 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 Washington County

When was Washington County founded?
Washington County was founded in 1827, formed from Warren County and Yazoo County, and named after George Washington.
What is the county seat of Washington County?
The county seat of Washington County is Greenville.
Is there an online parcel map for Washington County?
Yes. A public source publishes a parcel map of 30,244 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Washington County's boundary or name changed?
Washington County was created in 1827 from Warren County and Yazoo County. Since then the Atlas of Historical County Boundaries records 12 later changes, chiefly involving Yazoo County, Bolivar County and Warren County.
Is my lot in a flood zone?
We do not have flood maps for Washington 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