Suffolk County, NY Property & Market Data

Suffolk County, New York has 586,595 parcels tracked in the Rippleffekt property database, 100% of them mapped to a precise location, a median household income of $125,969, and an unemployment rate of 4.6%.

Suffolk County at a glance

Rippleffekt tracks 586,595 parcels in Suffolk County, New York. The figures below combine county assessor coverage with federal economic data for the county.

586,595
Parcels tracked
100%
Mapped to location
586,595 parcels
911 sq mi
Land area
643.9 per sq mi
Parcel density
$125,969
Median household income
4.6%
Unemployment rate

New York commercial real estate lending

Statewide commercial real estate lending context from FFIEC bank call reports as of 2024-12-31. This reflects the broader New York lending environment, not Suffolk County alone.

135
Banks reporting
$383.0B
Real estate loans
$108.5B
Nonresidential CRE loans

Go deeper on Suffolk County

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Sources: county assessor records, U.S. Census ACS and SAIPE, FFIEC bank call reports, and public tax-lien records. Updated 2026-07-29.