NEW YORK · OFFICIAL ASSESSMENT DATA
Onondaga County, New York residential parcels
Explore houses, townhomes and condo units by area.
Official assessment values · Tax parcel IDs · Onondaga County parcel outlines
Uses official 2025 full market value, the assessor’s estimate for tax purposes. It is not a current sale or listing price.
Properties on the map
Outline colors: ● Over $3M to $5M · ● Over $5M to $10M · ● Over $10M. Shared-lot color follows its highest selected property value.
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| Property / unit | Parcel ID | Area | Property type | Market value |
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How to read this map
Maps 146 residential tax parcels above $3 million, 33 above $5 million and 4 above $10 million. Thresholds overlap and each tax parcel is counted once.
Uses official 2025 full market value, the assessor’s estimate for tax purposes. It is not a current sale or listing price.
Includes one-family homes, accessory-apartment homes, seasonal residences, estates and rural residential classes 210, 215, 240, 250 and 260. Townhomes and condos recorded under these classifications remain included; the source does not provide a reliable separate condo flag. Apartment-building and commercial classes are excluded.
The official state service joins the 2025 assessment roll to county-provided outlines using SWIS and print-key identifiers. Acreage describes mapped land, not unit size or a survey.
0 records are omitted because a reliable boundary or classification match is unavailable.
Omitted parcel IDs (0)
Sources: official 2025 NYS parcels and official assessment roll.