Oswego County, NY

Oswego County, NY assessor property search and records

Use this county guide to find official assessor property search resources, recorder and deed links, tax records, GIS parcel maps, permits, and property data insights for Oswego County, New York. Search an address or APN, then jump to official county sources or property tax and value data.

Official sources

Oswego County assessor, recorder, tax, and parcel map sources

Use this table to find the official county source for assessor property search, recorded documents, property tax, GIS parcel maps, permits, and zoning records.

Oswego County official assessor, tax, deed, GIS, permit, and land-use sources
Record typeOfficial sourceNotes
Assessed valuesOswego County Image Mate Onlinerptsweb.oswegocounty.com
  • Provides access to RPS data, tax maps, and property images.
  • Informational only; not an authoritative legal source.
  • No account required for public access.
Deeds and recorded documentsOswego County Clerk Deeds & Mortgageswww.oswegocountyny.gov/government/county_clerk/deeds___mortgages_.php
  • Records are available for research in the county records room.
  • Copies available via email or phone request.
  • Fraud alert service available via searchiqs.com.
Property taxesOswego County Treasurer Property Tax Portalpay.xpress-pay.com/org/02B0E25DBAEC458
  • Official portal for credit card tax payments.
  • Requires parcel ID and tax year.
  • Third-party site fees apply.
GIS and parcel mapsOswego County Tax Parcel GIS Portalrptsgisweb.oswegocounty.com/portal/apps/sites/
  • Interactive mapping tool for tax parcel information.
  • Hosted by the Real Property Office.
Permits and building recordsCity of Oswego Code Enforcementwww.oswegony.gov/departments/code_enforcement/index.php
  • Permits are handled at the municipal level.
  • This link covers the City of Oswego; other municipalities in the county may have separate departments.
Zoning and land useOswego County Zoning Ordinances and Mapswww.oswegocountyny.gov/departments/planning___comm._dev_/zoning.php
  • Provides links to zoning ordinances for various towns and villages within the county.
  • Users are encouraged to contact local municipalities to verify accuracy.
County data

Oswego County tax rates and property values

County and city-level rollups from AssessorSearch indexed property data. Use these values as directional context, then verify parcel-specific details with the official county sources above.

Median estimated value$196,903

Median estimated market value for properties in this county.

AssessorSearch county data
Median assessed value$111,200

Median assessed value from county assessment records when available.

AssessorSearch county data
Median annual property tax$3,891

Median annual property tax amount from indexed tax records when available.

AssessorSearch county data
Median effective property tax rate1.89%

Median effective property tax rate calculated from annual tax and value fields.

AssessorSearch county data

City property data

Top city rollups for estimated value, assessed value, property tax rate, and tax amount.

Oswego County city-level property value and tax-rate rollups
CityMedian estimated valueMedian assessed valueMedian effective property tax rateMedian tax amount
Oswego$184,248$125,0001.60%$2,681
Fulton$169,907$95,0002.60%$4,486
Pulaski$203,728$93,4001.92%$3,882
Central Square$242,073$153,0001.85%$4,556
Mexico$199,041$105,0002.14%$4,334
Parish$192,307$102,6001.73%$3,565
Phoenix$212,931$85,1502.10%$4,416
Hannibal$182,674$85,6001.92%$3,767
Pennellville$260,994$102,0002.16%$5,462
Williamstown$167,446$81,3001.59%$2,862
FAQ

Oswego County property records FAQ

Common questions about assessor, deed, tax, GIS, and permit records.

Where can I verify assessed value in Oswego County?

Use the official Oswego County Image Mate Online for assessed values, parcel details, exemptions, and property characteristics when those records are available online.

Where can I find deeds or recorded documents in Oswego County?

Use the official Oswego County Clerk Deeds & Mortgages for deeds, mortgages, liens, plats, and other recorded documents. These records are usually separate from assessor property-value records.

Where can I view parcel maps or GIS data in Oswego County?

Use the official Oswego County Tax Parcel GIS Portal for parcel maps, map layers, boundaries, and GIS context. GIS maps should be treated as reference tools, not legal surveys.

Can I build a list of Oswego County property owners?

Use Affix by AssessorSearch for county property owner lists, filters, exports, skip tracing, and outreach workflows.

Need many owners? Build targeted property lists with Affix
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