LandBrief

Columbia County

Parcel & Property Data

38,838Total Parcels
—Avg. Market Value
581,895Total Acres

About This Data

LandBrief holds 38,838 parcel records for Columbia County, sourced from county records. Each includes the parcel boundary, and — where the county publishes them — owner, situs address, acreage, assessed values and legal description.

Data from the Columbia County assessor roll dated July 2019, loaded August 2026. See data sources for every county’s vintage.

Explore Columbia County

Columbia County by the Numbers

Median parcel size
2 acres
measured from mapped boundaries
90th-percentile parcel
24.6 acres
County land area
406,185 acres
U.S. Census measurement
Communities
37
36.9% of parcels outside any incorporated place

Who Owns Columbia County?

Share of the county’s 38,838 parcels by the kind of owner on record. Classified from owner names, so the boundaries are approximate; an entity the rules cannot place counts as an individual.

Owner typeShare of parcels
Individuals84.1%
Companies & organizations9.4%
Trusts & estates1.7%
Government1.3%
Other / unclassified3.5%

The largest owner on record is Niagara Mohawk Power Corp with 71 parcels — see the full landowner leaderboard.

Parcel Records (~38,838 total)

per page
Parcel IDOwnerAddressCityAcreage
103200-167.-1-7State Of New YorkTaconic State ParkUnincorporated1932.50
103200-167.-1-7State Of New YorkTaconic State ParkUnincorporated1932.50
103200-167.-1-7State Of New YorkTaconic State ParkUnincorporated1932.50
103200-167.-1-7State Of New YorkTaconic State ParkUnincorporated1932.50
102200-88.-2-3State of New York-DECEast Hill Harvey Mountain Proj 41.1Unincorporated1267.74
102200-88.-2-3State of New York-DECEast Hill Harvey Mountain Proj 41.1Unincorporated1267.74
102200-88.-2-3State of New York-DECEast Hill Harvey Mountain Proj 41.1Unincorporated1267.74
102200-88.-2-3State of New York-DECEast Hill Harvey Mountain Proj 41.1Unincorporated1267.74
104000-110.-1-79.111Colarusso Ventures LLC4283 Route 9Unincorporated1226.97
104000-120.-1-28.100Colarusso Ventures LLC4283 Route 9Unincorporated1226.97
Page 1 of 3884

Download Columbia County parcel data

All 38,838 parcels in Columbia County as a single file — free, no account needed. Shapefile, GeoJSON, GeoPackage, CSV and Parquet.

Get Columbia County on FreeParcelData →

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Frequently Asked Questions

How many parcels are in Columbia County?

The Columbia County assessor roll on file records 38,838 parcels across 37 communities, with 36.9% lying outside any incorporated place.

Who owns the most land in Columbia County?

Niagara Mohawk Power Corp holds 71 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.

What is the typical parcel size in Columbia County?

Measured from mapped boundaries, the median parcel is 2 acres, and nine parcels in ten are under 24.6 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.

How much of Columbia County is government-owned?

Government entities — federal, state, and local — hold 1.3% of the county’s parcels, classified from owner names on the roll.

How current is this data?

It comes from the Columbia County assessor roll dated July 2019. Counties deliver on their own schedules; the methodology page explains how records are processed and the data sources page tracks every county’s vintage.

Browse by City (37)

38,838 parcels across 37 communities in Columbia County.