County · code 50001
Addison CountyVermont
Addison County is a county in Vermont, with its seat in Middlebury. It was created on October 18, 1785, from Rutland County and named after Joseph Addison.
- Founded1785
- County seatMiddlebury
- Named forJoseph Addison
- Land area766 sq mi + 41 sq mi water
- Population37,363 2020 Census
- Parcels mapped19,244 checked 15 October 2026
Where it is
Addison on the map of Vermont
Vermont has 14 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1785 from Rutland County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Addison County was created from Rutland County in 1785 and named for Joseph Addison. Over the following decades, the county exchanged and gained territory with neighboring counties: it exchanged land with Orange County in 1786, gained the town of Kingston (now Granville) from Orange in 1787, and lost territory to the creation of Chittenden County in 1787. The county continued to adjust its boundaries, gaining the town of Starksboro from Chittenden County in 1794, and later losing the town of Warren to Washington County in 1829. By 1847, Addison gained the town of Orwell from Rutland County as part of ongoing boundary adjustments with neighboring counties.
- 1785
- 1786
- 1787Gained territory Addison gained town of Kingston (now Granville) from Orange. · Vt. State Papers, 14:354
- 1787
- 1794Gained territory Addison gained town of Starksboro from Chittenden. · Vt. State Papers, 15:324
Show all 15 changes
- 1785
- 1786
- 1787Gained territory Addison gained town of Kingston (now Granville) from Orange. · Vt. State Papers, 14:354
- 1787
- 1791Boundary clarified Addison boundaries were clarified to include town of Hancock (no change).no change· Vt. State Papers, 14:544
- 1794Gained territory Addison gained town of Starksboro from Chittenden. · Vt. State Papers, 15:324
- 1814Gained territory Addison gained from Rutland when town of Goshen gained from town of Philadelphia. · Vt. Laws 1814, ch. 96/pp. 111-112
- 1829Lost territory Addison lost town of Warren to Washington. · Vt. Laws 1829, no. 20/p. 18
- 1834Lost territory Addison lost to Windsor when town of Rochester gained small area from town of Hancock. · Vt. Laws 1834, no. 38/p. 27
- 1839Changed Legislature authorized Addison to gain small area from Rutland when town of Whiting was to gain from town of Orwell. No evidence that change took effect. · Vt. Laws 1839, no. 37/pp. 87-88
- 1847Changed Legislature authorized Windsor to gain from Addison when town of Rochester was to gain from town of Hancock, effective 1 December 1848. Change did not take effect; see 27 October 1848. · Vt. Laws 1847, no. 12/pp. 9-10
- 1847Lost territory Addison lost to Windsor when town of Rochester gained from town of Goshen. · Vt. Laws 1847, no. 9/p. 7
- 1847Gained territory Addison gained town of Orwell from Rutland. · Vt. Laws 1847, no. 8/p. 7
- 1848Changed Act of 30 October 1847, authorizing Windsor to gain from Addison on 1 December 1848, was repealed (no change). · Vt. Laws 1848, no. 8/p. 9
- 1855Gained territory Addison gained small area from Rutland when town of Goshen gained "Clemens Land" from town of Brandon. · Vt. Laws 1854, no. 61, sec. 3/p. 59
Land and parcels
What the maps cover in Addison
Who publishes each layer, how good it is, and when we last checked.
-
Parcels Good enough
Lot lines and tax-map numbers for 19,244 parcels. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
edited 14 October 2026 · checked 15 October 2026 -
Address points Official
One point per address, 20,147 in all from Vermont Enhanced 911 Board via VCGI.
edited 19 February 2026 · checked 13 October 2026 -
Buildings Reference
Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026
- 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
Addison by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Addison County's official site
We have found the county's site but not its offices yet; start there.
In Vermont, permits, zoning and assessing are handled by each city or town, not the county, and town clerks record deeds.
County government
- County government
The official website of Addison County.
See your own lot on these maps
Open Addison 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.
Questions
Common questions about Addison County
- When was Addison County founded?
- Addison County was founded in 1785, formed from Rutland County, and named after Joseph Addison.
- What is the county seat of Addison County?
- The county seat of Addison County is Middlebury.
- Is there an online parcel map for Addison County?
- Yes. A public source publishes a parcel map of 19,244 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Addison County's boundary or name changed?
- Addison County was created in 1785 from Rutland County. Since then the Atlas of Historical County Boundaries records 12 later changes, chiefly involving Rutland County, Windsor County and Chittenden County.
- Is my lot in a flood zone?
- We do not have flood maps for Addison County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby