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Middlesex County, MA Parcels & GIS Data

Middlesex County, MA parcel data: 524,672 property records with owner names, assessed values, land use, acreage, and addresses. Preview and download.

Land Records publishes Middlesex County, Massachusetts parcel data covering 524,672 property records.

This page documents parcel-level coverage for Middlesex County, Massachusetts. Each parcel record carries its boundary polygon (GIS geometry) along with attributes such as the parcel ID/APN, owner name and mailing address, situs (property) address, assessed land and improvement values, acreage, land-use and zoning codes, year built, and most recent sale price and date. Exact fill rates for Middlesex County are listed in the attribute-coverage table below. Preview the data in the interactive explorer, or download the complete Middlesex County property dataset.

Middlesex County is a county located in the Commonwealth of Massachusetts, United States, one of fourteen in the state. As of the 2020 census, the population was 1,632,002, making it the most populous county in both Massachusetts and New England and the 20th most populous county in the United States. This makes the county the most populous county on the East Coast outside of New York or Florida. Middlesex County is one of two U.S.

FIPS 25017

The FIPS code for Middlesex County is 25017.

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Attribute coverage

Middlesex County contains 524,672 parcels in the current dataset. Column coverage is the percentage of those parcels for which the attribute is populated (non-NULL).

ColumnCoverageRecords populated
lrid100%524,672
parcelid99.7%522,843
parcelid293.8%491,909
ogparcelid99.7%522,845
ogparcelid2<0.1%0
parentid0.2%877
stackid<0.1%0
geoid100%524,672
statefp100%524,672
countyfp100%524,672
countyname100%524,672
cousubfp100%524,672
cousubname100%524,672
tractce100%524,672
tractname100%524,672
taxacctnum<0.1%41
taxyear<0.1%0
taxdistrict99.8%523,789
usecode100%524,668
usedesc99.8%523,794
zoningcode100%524,574
zoningdesc0.2%878
numbldgs99.8%523,791
numunits<0.1%0
yearbuilt<0.1%0
numfloors<0.1%0
bldgsqft<0.1%0
bedrooms<0.1%0
halfbaths<0.1%0
fullbaths<0.1%0
imprvalue<0.1%0
landvalue<0.1%0
agvalue<0.1%0
totalvalue<0.1%0
taxacres98.8%518,340
calcarea100%524,672
saleamt<0.1%0
saledate<0.1%0
ownertype<0.1%0
ownername98.3%515,875
owneraddr99.0%519,565
ownercity99.1%519,697
ownerstate99.0%519,474
ownerzip99.0%519,431
parceladdr99.7%522,845
parcelcity100%524,670
parcelstate100%524,667
parcelzip73.7%386,525
legaldesc0.3%1,688
township<0.1%0
section<0.1%0
qtrsection<0.1%0
range<0.1%0
plssdesc<0.1%0
book100%524,598
page100%524,601
parceltype2.3%11,818
accesstype2.3%11,818
iucnclass1.5%7,933
placename<0.1%0
placetype<0.1%0
firmid100%524,669
firmdate100%524,669
fldzone100%524,669
zonesubty97.3%510,595
staticbfe100%524,669
elevmin100%524,667
elevmax100%524,667
elevavg100%524,667
fireplaces<0.1%0
heating<0.1%0
heatfuel<0.1%0
cooling<0.1%0
foundation<0.1%0
roofcover<0.1%0
siding<0.1%0
updated99.8%523,791
centroidx100%524,672
centroidy100%524,672
surfpointx100%524,672
surfpointy100%524,672
geom100%524,672
lrversion100%524,672

Neighboring counties

Parcel data for counties bordering Middlesex County:

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Attribute coverageNeighboring countiesRelated