This page helps users complete a Property Search in Delaware County, Ohio by pointing them to the official search tools, map resources, and related county offices that support real estate records.

The Delaware County Auditor provides the main property search options for owner, address, and parcel number lookups. Users can also review GIS mapping, tax estimates, valuation information, forms, and Recorder records when a property question needs more detail.

The Delaware County Auditor offers separate search pages for common real estate lookup methods. Choose the search that matches the information you already have.

  • Owner search: enter the last name and first name, or search by last name only.
  • Address search: enter the house number and street name without direction or suffix.
  • Parcel number search: enter the parcel number with no dashes or spaces. Partial entries are allowed.

Use the most specific search field available to narrow the results.

Search tip: If an address search does not return the expected match, try the street name without abbreviations such as St, Dr, or Av.

GIS property search and maps

The Delaware County Auditor GIS site provides map-based property research for parcels and related geographic layers. It includes current year parcels, prior year parcels, lots of record, boundaries, subdivisions, municipalities and townships, school districts, tax districts, zip codes, floodplains, utilities, address points, recorded documents, survey points, zoning and development layers, and imagery layers.

Use the Delaware County Auditor GIS map when a visual parcel view, boundary context, or nearby layer information would help you understand a property record.

GIS data is provided for reference purposes only. It is not a substitute for a professional surveyor, and users should report errors or omissions to the Auditor’s GIS office.

Property valuation and tax tools

The Auditor website includes property valuation information and a tax estimator for users reviewing market value, levy effects, and estimated annual taxes.

The Delaware County Tax Estimator asks for a tax district or school district, market value, owner-occupied status, and commercial status. It shows an effective rate for tax year 2025 and an estimated annual tax.

The estimate is for planning only. It does not include special assessment charges, homestead reductions, or specific tax rate adjustments such as the 20 mill floor guarantee.

For valuation background, the Auditor describes the cost approach, income approach, and market approach, along with how different property classes are considered for tax appraisal purposes.

Auditor forms and property programs

The Auditor Forms page includes property-related forms such as valuation complaints, assessment complaints, exemption forms, conveyance forms, homestead forms, owner-occupancy reduction forms, CAUV forms, manufactured home forms, and rental registration forms.

The Homestead Program is administered by county auditors under Ohio rules. It can reduce real estate taxes for eligible senior citizens, permanently and totally disabled homeowners, and certain qualifying applicants based on the program requirements described by the Auditor.

Delaware County also provides a rental registration search that allows users to search rental registration information by street name or city.

Recorder records and document access

Some property questions may require recorded documents rather than only parcel or valuation data. The Delaware County Recorder’s Office public access system provides access to Recorder records and document images for informational purposes.

Recorder website images are not equal in legal legitimacy to documents properly filed with the Recorder or certified copies supplied by the Recorder. Users who need legal document status should rely on the Recorder’s Office process rather than a preview image alone.

Delaware County property search contacts

Use these contacts when a search result is unclear, a parcel question needs staff review, or GIS data needs correction.

  • Delaware County Auditor, 145 N. Union St., Delaware, OH 43015
    Phone: (740) 833-2900
    Email: auditor@co.delaware.oh.us
    Hours: Monday – Friday 8:30am – 4:30pm
  • Delaware County GIS, 145 N. Union St., Delaware, Ohio 43015
    Phone: (740) 833-2070
    Email: delco-gis@co.delaware.oh.us
    Fax: (740) 833-2069
    Hours: Monday-Friday 8:30 am to 4:30 pm

Common questions

Where can I search Delaware County, Ohio property records by owner?

Use the Auditor Owner Search. The search example shows last name followed by first name, and it also allows last-name-only searches.

Can I search by property address?

Yes. The Auditor Address Search accepts a house number and street name. Enter the street name without a direction or suffix.

How should I enter a parcel number?

The Auditor Parcel Number Search accepts parcel numbers without dashes or spaces. Partial entries are allowed.

Who should I contact about Delaware County Auditor property data?

Contact the Delaware County Auditor at (740) 833-2900 or [auditor@co.delaware.oh.us](mailto:auditor@co.delaware.oh.us) for property search and Auditor record questions.

Who handles GIS map errors or omissions?

The Delaware County Auditor’s GIS office handles GIS errors or omissions. Call (740) 833-2900 or email [delco-gis@co.delaware.oh.us](mailto:delco-gis@co.delaware.oh.us).

Is the tax estimator a final tax bill?

No. The tax estimator is for estimation purposes only and does not include special assessment charges, homestead reductions, or specific tax rate adjustments such as the 20 mill floor guarantee.