Monroe County

Parcel & Property Data

266,578Total Parcels

—Avg. Market Value

385,160Total Acres

About This Data

LandBrief holds 266,578 parcel records for Monroe 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 Monroe County assessor roll dated February 2023, loaded August 2026. See data sources for every county’s vintage.

Explore Monroe County

Largest landownersWho holds the most land in Monroe County, by total acreage.
Largest parcelsThe biggest individual tracts in the county, ranked by size.

Monroe County by the Numbers

Median parcel size: 0.28 acres
measured from mapped boundaries
90th-percentile parcel: 1.3 acres
County land area: 420,444 acres
U.S. Census measurement
Communities: 22
52.6% of parcels outside any incorporated place

Who Owns Monroe County?

Share of the county’s 266,578 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 type	Share of parcels
Individuals	86.8%
Companies & organizations	9.2%
Trusts & estates	1.2%
Government	2.2%
Other / unclassified	0.5%

The largest owner on record is City Of Rochester with 2,850 parcels — see the full landowner leaderboard.

Parcel Records (~266,578 total)

Showper page

Parcel ID	Owner	Address	City	Acreage
26140010526000030440000000	IBERO- American Dev Corp	27 Rainier St	Rochester	10526.00
26280002603000030010000000	New York State	Braddock Bay	Unincorporated	1763.70
26368920401000010010000000	County Of Monroe Parks	Pond Rd	Unincorporated	1561.45
26220015704000020010000000	County of Monroe	3883 Union St	Unincorporated	1360.20
2614001363800001076000NHOM	1098 Llc	1108 Mt Hope	Rochester	1108.00
2650002110200002001000TX	NYS OCFS	375 Rush Scottsville Rd	Unincorporated	840.47
26140013513000010010020000	County Of Monroe Airport	1135 Brooks Ave	Rochester	764.91
26300000204000010010000000	New York State	Hamlin Beach Park	Unincorporated	729.50
26488914301000010161000000	County Of Monroe	629 Kendall Rd	Unincorporated	717.29
26140006203000010010020000	City Of Rochester	1570 Lakeshore Blvd	Rochester	620.50

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Nearby counties

Frequently Asked Questions

How many parcels are in Monroe County?

The Monroe County assessor roll on file records 266,578 parcels across 22 communities, with 52.6% lying outside any incorporated place.

Who owns the most land in Monroe County?

City Of Rochester holds 2,850 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.

What is the typical parcel size in Monroe County?

Measured from mapped boundaries, the median parcel is 0.28 acres, and nine parcels in ten are under 1.3 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.

How much of Monroe County is government-owned?

Government entities — federal, state, and local — hold 2.2% of the county’s parcels, classified from owner names on the roll.

How current is this data?

It comes from the Monroe County assessor roll dated February 2023. Counties deliver on their own schedules; the methodology page explains how records are processed and the data sources page tracks every county’s vintage.