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DE · updated 2026-07-30

Delaware property data

89,724 properties mapped across 43 Delaware counties, 13,720 of them carrying linked permit, violation, sale, or event records. These are the live map's own counts, not estimates. Statewide permit totals by jurisdiction are on the coverage page.

89,724
Properties mapped
13,720
With linked records (15%)
43
Counties covered
Active
Coverage tier

Counties

CountyPropertiesWith recordsLinked shareTier
Kent82,4276,4237.8%Parcel-first
New Castle County3,1173,117100%Deep
Sussex County1,8181,818100%Deep
Middletown285285100%Deep
Milford233233100%Deep
Millville209209100%Deep
Smyrna198198100%Deep
Kent County182182100%Deep
Millsboro158158100%Deep
Dover120120100%Deep
Wilmington108108100%Deep
Clayton9999100%Deep
Rehoboth Beach8282100%Deep
Milton7777100%Deep
Townsend7070100%Deep
Bridgeville6868100%Deep
Selbyville6363100%Deep
Lewes5656100%Deep
Ocean View5454100%Deep
Bethany Beach4848100%Deep
Newark4646100%Deep
Ellendale4242100%Deep
Seaford3030100%Deep
Georgetown2424100%Deep
Harrington2020100%Deep
Fenwick Island1515100%Deep
Felton1313100%Deep
Delmar88100%Deep
Bethel88100%Deep
New Castle88100%Deep
Frederica66100%Deep
Cheswold66100%Deep
Frankford55100%Deep
Laurel55100%Deep
Dagsboro44100%Deep
Greenwood33100%Deep
Camden22100%Deep
Odessa22100%Deep
Blades11100%Deep
Dewey Beach11100%Deep
Wyoming11100%Deep
South Bethany11100%Deep
Kenton11100%Deep

What is in the Delaware data

Every property above sits on the owned parcel layer (92M parcels nationally) and is joined to whichever record classes exist for its jurisdiction: building permits, code violations, complaints, deeds and sales, assessments, and certificates of occupancy. Per-county parcel-match rates are published openly on the data quality page.

Building permits · 47.1M+Parcels · 92MCode violations · 22.9MComplaints & 311 · 25.1MDeeds & sales · 33.4MAssessments · 85MCertificates of occupancy · 1.6MContractors · 3.3MHearings & penalties · 13.1MGovernment decisions · 2.37M

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