SUFFOLK COUNTY, MASSACHUSETTS

Suffolk County, Massachusetts property data

208,724 parcel records. Recorded property and owner fields with source fiscal years, FEMA flood context, NWI wetland/water overlaps, school context and a parcel shortlist tool.

Included: Boston FY2026 assessment comparison and a 72,155-record owner/mailing review queue. Inspect the dated changes and matching results.

$9 one time

Official MassGIS snapshot retrieved September 23, 2026. FY2026: 28,201, FY2023: 180,441, Year not supplied: 82. Retrieval is not current title verification. No subscription.

CHECK THE FILE FIRST

Real records. Measured coverage.

208,582 recorded owners; 208,552 tax mailing addresses; 208,720 valid geometries. 208,328 records have at least 99.9% FEMA mapping coverage; 20,097 intersect mapped SFHA.

Download the free CSV sample View full coverage

SFHA overlap differs from FEMA mapping coverage. Zero overlap does not certify freedom from flooding. Recorded owner names do not establish title or sale availability. Parcel IDs are source-snapshot identifiers; original town/property/map keys are retained.

FROM DATA TO A WORKING LIST

Compare your candidate parcels.

Use the included tool to filter parcel acreage and mapped constraints, inspect source dates and export matches. No upload or account is required for the preview.

Try the shortlist tool with real samples

NWI wetland and water mapping: 6,245 records intersect mapped NWI features; 208,699 have at least 99.9% digital project footprint coverage. Imagery years and per-record evidence are included. Mapping is biological context, not regulatory jurisdiction or proof of wetland absence.

68 fields, with source notes.

CSV, matching GeoJSON, parcel shortlist tool, source-linked flood/wetland evidence, measured coverage, sample and methodology. 15,501 records carry assessor zoning attributes; these are not a current zoning-polygon overlay or permission to build.

Each valid source geometry was checked against the official county boundary with a 100-metre tolerance. Invalid geometries remain unknown for spatial analysis. Stacked records can represent different assessment interests. Nearest school is straight-line distance among retrieved active physical public schools in Massachusetts, not attendance eligibility or travel distance.

Read methodology · Inspect source provenance

Source fiscal years vary by municipality. These files do not establish legal access, utility capacity, title, environmental clearance, value or project feasibility.

BOSTON FY2023 TO FY2026: A WORKING REVIEW QUEUE

Find the records that need another look.

Dated assessment update review: the complete official City of Boston FY2026 CSV adds 184,552 dated assessment records. A strict two-identifier comparison links 179,854 original FY2023 Boston records to this source. The comparison covers Boston only; 28,266 other Suffolk records stay outside its scope.

72,155 records in a ready-to-filter owner and mailing review queue. Among matched records, 32,195 have owner-name text changes and 65,937 have mailing-field text changes; these groups overlap. Brokers can prioritize verification, appraisers can reconcile assessment years and values, and GIS teams can inspect unresolved keys.

Included: every original parcel and evidence file; complete FY2026 source CSV; a side-by-side comparison of all 208,724 original main-file records; owner-mail-review-queue.csv; 4,698 current records without a unique original match; and source/coverage notes. The source also contains dated building, roof, heating and parking attributes for further research.

Download the real comparison sample View matching and coverage

Retrieved 2026-09-23. Text changes include formatting differences and do not establish transfers, current title, valid mailing delivery or seller intent. Assessment differences are not market appreciation. The FY2026 CSV supplies attributes only: existing flood and wetland analysis still applies to original geometry. Building attributes are not inspection findings or verified service needs. Official FY2026 data dictionary.