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County · code 50023

Washington CountyVermont

Washington County is in central Vermont and has its seat in Montpelier. The county was created in 1810 and named after George Washington.

  • Founded1810
  • County seatMontpelier
  • Named forGeorge Washington
  • Land area687 sq mi + 8.2 sq mi water
  • Population59,807 2020 Census
  • Parcels mapped31,569 checked 15 October 2026
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Updated

LamoilleOrangeChittendenCaledoniaAddison Montpelier Census outline · seat marked

Where it is

Washington on the map of Vermont

Vermont has 14 counties and county equivalents, each with its own records office. Shapes with a page are links.

Addison CountyBennington CountyCaledonia CountyChittenden CountyEssex CountyFranklin CountyGrand Isle CountyLamoille CountyOrange CountyOrleans CountyRutland CountyWindham CountyWindsor CountyWashington County Washington
Counties of Vermont · Washington highlighted

History

Formed in 1810 from Caledonia County, Chittenden County and Orange County

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

Washington County was created in 1810 from parts of Caledonia, Chittenden, and Orange counties as Jefferson County, initially unorganized with its towns divided among its parent counties. The county was fully organized in 1811 and renamed Washington in 1814. Over the following decades, Washington gained towns from neighboring counties, including Roxbury, Elmore, Warren, Woodbury, and Waterbury, and lost territory to the creation of Lamoille County in 1835.

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

  1. 1810
    Washington County created Jefferson (now Washington) created from Caledonia, Chittenden, and Orange; Jefferson not fully organized, parts attached to Caledonia, Chittenden, and Orange for administrative and judicial purposes.
    from Caledoniafrom Chittendenfrom Orange
    · Vt. Laws 1810, ch. 74/pp. 101-103
  2. 1814
    Renamed Jefferson renamed Washington.
    formerly Jefferson
    · Vt. Laws 1814, ch. 79/p. 83
  3. 1821
    Gained territory Washington gained town of Roxbury from Orange.
    from Orange
    · Vt. Laws 1820, ch. 35/p. 42
  4. 1821
    Gained territory Washington gained town of Elmore from Orleans.
    from Orleans
    · Vt. Laws 1821, ch. 27/p. 98
  5. 1829
    Gained territory Washington gained town of Warren from Addison.
    from Addison
    · Vt. Laws 1829, no. 20/p. 18
Show all 15 changes (10 more)
  1. 1810
    Washington County created Jefferson (now Washington) created from Caledonia, Chittenden, and Orange; Jefferson not fully organized, parts attached to Caledonia, Chittenden, and Orange for administrative and judicial purposes.
    from Caledoniafrom Chittendenfrom Orange
    · Vt. Laws 1810, ch. 74/pp. 101-103
  2. 1811
    Changed Jefferson (now Washington) fully organized, detached from Caledonia, Chittenden, and Orange.
    CaledoniaChittendenOrange
    · Vt. Laws 1811, ch. 1/pp. 3-6
  3. 1814
    Renamed Jefferson renamed Washington.
    formerly Jefferson
    · Vt. Laws 1814, ch. 79/p. 83
  4. 1821
    Gained territory Washington gained town of Roxbury from Orange.
    from Orange
    · Vt. Laws 1820, ch. 35/p. 42
  5. 1821
    Gained territory Washington gained town of Elmore from Orleans.
    from Orleans
    · Vt. Laws 1821, ch. 27/p. 98
  6. 1829
    Gained territory Washington gained town of Warren from Addison.
    from Addison
    · Vt. Laws 1829, no. 20/p. 18
  7. 1835
    Lost territory Washington lost to creation of Lamoille; Lamoille not fully organized, part attached to Washington for administrative and judicial purposes.
    to Lamoille
    · Vt. Laws 1835, no. 41/pp. 30-31
  8. 1835
    Gained territory Washington gained town of Woodbury from Caledonia.
    from Caledonia
    · Vt. Laws 1835, no. 43/p. 32
  9. 1836
    Changed Lamoille fully organized, detached from Washington.
    Lamoille
    · Vt. Laws 1836, no. 16/p. 14
  10. 1840
    Changed Legislature authorized Caledonia to gain small area from Washington when town of Walden was to gain from town of Monroe (now Woodbury). No evidence that the change took effect.
    Caledonia
    · Vt. Laws 1840, no. 57/pp. 54-55
  11. 1851
    Gained territory Washington gained from Chittenden when town of Waterbury gained from town of Bolton.
    from Chittenden
    · Vt. Laws 1851, no. 71/p. 64
  12. 1855
    Changed Legislature authorized Washington to gain from Caledonia when town of Plainfield was authorized to gain Goshen Gore and Harris Gore. Voters rejected the annexation, and the change did not take effect.
    Caledonia
    · Vt. Laws 1855, no. 57/pp. 74-75; Sanford, 87
  13. 1856
    Gained territory Washington gained town of Cabot from Caledonia.
    from Caledonia
    · Vt. Laws 1855, no. 53/pp. 68-70
  14. 1875
    Gained territory Washington gained from Caledonia when town of Plainfield gained Goshen Gore.
    from Caledonia
    · Vt. Laws 1874, no. 183/pp. 380-381
  15. 1891
    Gained territory Washington gained from Caledonia when town of Marshfield gained part of Harris Gore.
    from Caledonia
    · Vt. Laws 1890, no. 185/pp. 276-277

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
59,807 2020 Census count
Housing units
30,645 2020 Census count
Land area
687 square miles
Water area
8.2 square miles
People per sq mi
87 population ÷ land area

Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.

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 1810, formed from Caledonia County, Chittenden County and Orange County, and named after George Washington.
What is the county seat of Washington County?
The county seat of Washington County is Montpelier.
Is there an online parcel map for Washington County?
Yes. A public source publishes a parcel map of 31,569 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 1810 from Caledonia County, Chittenden County and Orange County. Since then the Atlas of Historical County Boundaries records 14 later changes, chiefly involving Caledonia County, Chittenden County and Lamoille County. It was formerly called Jefferson.
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