LatestCoverageAll 50 states, D.C. and five territories now on the ledger|NewPuerto Rico's 78 municipios ledgered, municipio by municipio|FeatureAssessment appeal workspace — build a filing package from your own evidence|FeatureLiving reports — versioned, re-runnable, exportable|DevelopersMetered REST gateway · issued keys · signed webhooks|Live market readings · refreshed on loadAlbuquerque · NMMedian List$360K+2.5%|Austin · TXMedian List$550K-1.0%|Baltimore · MDMedian List$225K-6.3%|Bernalillo County · NMMedian List$364K+2.7%|Bexar County · TXMedian List$303K+3.7%|Boston · MAMedian List$859K+3.4%|Charlotte · NCMedian List$430K-0.1%|Chicago · ILMedian List$426K+9.3%|Clark County · NVMedian List$447K+0.1%|Columbus · OHMedian List$300K+0.6%|Cook County · ILMedian List$348K+5.1%|Dallas · TXMedian List$449K-0.1%|Davidson County · TNMedian List$465K-1.1%|Denver · COMedian List$569K+1.6%|Detroit · MIMedian List$105K-2.8%|Duval County · FLMedian List$297K-2.3%|El Paso · TXMedian List$260K+3.7%|Fort Worth · TXMedian List$332K-2.1%|Franklin County · OHMedian List$320K+3.2%|Fresno · CAMedian List$375K+2.1%|Harris County · TXMedian List$327K+0.6%|Houston · TXMedian List$340K+0.6%|Indianapolis · INMedian List$260K+2.3%|Jackson County · MOMedian List$275K+7.0%|Jacksonville · FLMedian List$309K-2.1%|Jefferson County · KYMedian List$248K-4.3%|Kansas City · MOMedian List$240K+4.3%|King County · WAMedian List$850K-4.0%|Las Vegas · NVMedian List$440K-1.1%|Los Angeles · CAMedian List$950K-0.5%|Louisville · KYMedian List$275K0.0%|Maricopa County · AZMedian List$458K-0.4%|Marion County · INMedian List$259K+3.7%|Mecklenburg County · NCMedian List$407K-5.3%|Memphis · TNMedian List$202K+2.5%|Mesa · AZMedian List$450K-3.1%|Milwaukee · WIMedian List$243K+5.7%|Multnomah County · ORMedian List$518K-1.2%|Nashville · TNMedian List$480K+1.0%|New York · NYMedian List$899K+0.5%|Oklahoma City · OKMedian List$275K-0.6%|Oklahoma County · OKMedian List$259K-0.7%|Philadelphia · PAMedian List$249K+0.3%|Phoenix · AZMedian List$480K0.0%|Pima County · AZMedian List$373K+0.9%|Portland · ORMedian List$640K-6.0%|Sacramento · CAMedian List$510K+4.0%|San Antonio · TXMedian List$236K-1.2%|San Diego · CAMedian List$994K+4.2%|San Francisco · CAMedian List$1.4M+1.7%|San Jose · CAMedian List$1.3M-11.9%|Santa Clara County · CAMedian List$1.3M+0.1%|Seattle · WAMedian List$874K-2.8%|Shelby County · TNMedian List$259K-2.4%|Suffolk County · MAMedian List$857K+7.3%|Tarrant County · TXMedian List$385K-1.2%|Travis County · TXMedian List$497K-5.3%|Tucson · AZMedian List$324K-0.9%|Wayne County · MIMedian List$160K0.0%|LatestCoverageAll 50 states, D.C. and five territories now on the ledger|NewPuerto Rico's 78 municipios ledgered, municipio by municipio|FeatureAssessment appeal workspace — build a filing package from your own evidence|FeatureLiving reports — versioned, re-runnable, exportable|DevelopersMetered REST gateway · issued keys · signed webhooks|Live market readings · refreshed on loadAlbuquerque · NMMedian List$360K+2.5%|Austin · TXMedian List$550K-1.0%|Baltimore · MDMedian List$225K-6.3%|Bernalillo County · NMMedian List$364K+2.7%|Bexar County · TXMedian List$303K+3.7%|Boston · MAMedian List$859K+3.4%|Charlotte · NCMedian List$430K-0.1%|Chicago · ILMedian List$426K+9.3%|Clark County · NVMedian List$447K+0.1%|Columbus · OHMedian List$300K+0.6%|Cook County · ILMedian List$348K+5.1%|Dallas · TXMedian List$449K-0.1%|Davidson County · TNMedian List$465K-1.1%|Denver · COMedian List$569K+1.6%|Detroit · MIMedian List$105K-2.8%|Duval County · FLMedian List$297K-2.3%|El Paso · TXMedian List$260K+3.7%|Fort Worth · TXMedian List$332K-2.1%|Franklin County · OHMedian List$320K+3.2%|Fresno · CAMedian List$375K+2.1%|Harris County · TXMedian List$327K+0.6%|Houston · TXMedian List$340K+0.6%|Indianapolis · INMedian List$260K+2.3%|Jackson County · MOMedian List$275K+7.0%|Jacksonville · FLMedian List$309K-2.1%|Jefferson County · KYMedian List$248K-4.3%|Kansas City · MOMedian List$240K+4.3%|King County · WAMedian List$850K-4.0%|Las Vegas · NVMedian List$440K-1.1%|Los Angeles · CAMedian List$950K-0.5%|Louisville · KYMedian List$275K0.0%|Maricopa County · AZMedian List$458K-0.4%|Marion County · INMedian List$259K+3.7%|Mecklenburg County · NCMedian List$407K-5.3%|Memphis · TNMedian List$202K+2.5%|Mesa · AZMedian List$450K-3.1%|Milwaukee · WIMedian List$243K+5.7%|Multnomah County · ORMedian List$518K-1.2%|Nashville · TNMedian List$480K+1.0%|New York · NYMedian List$899K+0.5%|Oklahoma City · OKMedian List$275K-0.6%|Oklahoma County · OKMedian List$259K-0.7%|Philadelphia · PAMedian List$249K+0.3%|Phoenix · AZMedian List$480K0.0%|Pima County · AZMedian List$373K+0.9%|Portland · ORMedian List$640K-6.0%|Sacramento · CAMedian List$510K+4.0%|San Antonio · TXMedian List$236K-1.2%|San Diego · CAMedian List$994K+4.2%|San Francisco · CAMedian List$1.4M+1.7%|San Jose · CAMedian List$1.3M-11.9%|Santa Clara County · CAMedian List$1.3M+0.1%|Seattle · WAMedian List$874K-2.8%|Shelby County · TNMedian List$259K-2.4%|Suffolk County · MAMedian List$857K+7.3%|Tarrant County · TXMedian List$385K-1.2%|Travis County · TXMedian List$497K-5.3%|Tucson · AZMedian List$324K-0.9%|Wayne County · MIMedian List$160K0.0%|
Property-class scope

The story of this market

The typical home in ZIP 01821 sells for about $720,000, or $320 per square foot.

Homes take about 42 days to sell. HUD's fair market rent for a two-bedroom is $2,383 a month.

ZIP market report · consumer edition · quarterly refresh
Track this ZIP

ZIP 01821 — Billerica

Middlesex County →refreshed Oct 8, 2026next refresh Nov 7, 2026
Market mood · neutral

The housing market in 01821 shows a steady balance with a median listing price of $720,000. Specific ZIP-level metrics for sales counts, rent, and tax rates are not published in the available data. Market activity is characterized by moderate days on market and stable pricing.

Who this ZIP fits

This ZIP is ideal for families and professionals seeking a suburban lifestyle with convenient access to major employment hubs in the Greater Boston area.

Parent geography
Billerica · no city intel reportMiddlesex County →Massachusetts state →
Aerial view · ZIP boundaries2020 Census ZCTA boundary over current aerial imagery
Leaflet Imagery © Esri, Maxar, Earthstar Geographics
Land area · 43 km²Water area · 1 km²U.S. Census Bureau TIGERweb — 2020 Census ZCTA5 boundary
Median sale price
$720,000
Corroborated · 1 anchor · 1.4% off nearest
Days on market
42 days
Active listings
3,580
Sale-to-list ratio
98%
of asking price
ZIP Market ScoreZIP-SCORE-1.3 · 4/4 sections graded
77
Composite · average of graded sections
Computed only from this report's published readings — sections without data are excluded, never estimated.
50
Growth/100

Median prices moved sideways 0.0% year over year.

74
Liquidity/100

Homes spend a median of 42 days on market with 0.0 months of supply — a fast-moving market.

84
Momentum/100

0% of listings have cut prices · homes sell at 98% of asking — demand is running ahead of supply.

100
Safety & stability/100

no recorded foreclosure-ledger notices (0.0 per 10,000 residents) — a stable, low-distress profile.

Market pressure
Market momentum · distress to ascension
Firming · +27
Share sold above list0.74▲
Sale-to-list ratio1.04▲
Share under contract in 2 weeks0.75▲
Housing vacancy rate1▲
Unemployment rate3▲
Months of supply0.78▲
Sale price, year over year-0.05▼
New listings, year over year0.12▼
Pending sales, year over year0.13▲
Inventory, year over year0.11▼
Foreclosure filings per 100 sales0▲
Days on market, year over year2▲
FHFA ZIP price index, year over year3.54▼
Sale vs list price (price cuts)-3.56▼
Median price · ten-year history

Researched annual trajectory for this ZIP, from published historical series

2015201620172018201920202021202220232024202520272029$200,000$400,000$600,000$800,000$1,000,000

Solid: researched ten-year history · dotted: 1 / 3 / 5-year projection extended from the historical 7.0%/yr trend — a deterministic estimate, not a published forecast or guarantee.

Property tax · ten-year history

Median annual property tax paid on this ZIP's residential parcels

2015201620172018201920202021202220232024202520272029$4,000$6,000$8,000$10,000$12,000

Solid: researched ten-year history · dotted: 1 / 3 / 5-year projection extended from the historical 5.3%/yr trend — a deterministic estimate, not a published forecast or guarantee.

Census trends · population flows2023 American Community Survey 5-Year Estimates
Population base
42,119

ZCTA 01821, Middlesex County, MA

Immigration & foreign-bornU.S. Census Bureau ACS · ZIP granular
Foreign-born share
15.4%
Foreign-born residents
4,656
Naturalized (of foreign-born)
57.7%
Non-citizens (of population)
6.5%
Entered 2010 or later (of foreign-born)
43.9%
World region of birth (foreign-born)
Asia
49.8%
Americas
23.5%
Europe
18.6%
Africa
8%

ACS 2024 5-year estimates. Aggregate published statistics for this ZIP — never individual records, and never an attribute of any individual property or resident.

Area context
Crime & safety

Billerica generally reports lower crime rates compared to the national average, with property crime being the most common concern. The area is considered safe and suburban in character.

Schools & education

The Billerica Public Schools district serves the area, with schools generally receiving moderate to high ratings for academic performance and student support.

Environmental & hazard

The area is subject to standard New England weather risks, including winter storms and occasional flooding in low-lying areas near the Concord and Shawsheen rivers.

Growth & development

Billerica benefits from its proximity to the Route 128/I-95 technology corridor, attracting a mix of biotech, manufacturing, and professional service employers.

Taxation

Composed from the ARED governance burden registry — tier-native tax structure (state + county + city + special districts), never averaged. State (Massachusetts) — Massachusetts Local Property Tax: Ad valorem tax calculated as (Municipal Budget / Total Assessed Value of all taxable property) = Tax Rate per $1,000 of assessed value. Assessments must be at 100% of full and fair cash (market) value.

Transportation & commute

Residents primarily commute via I-93 and Route 3 toward Boston and the surrounding tech hubs, with some access to MBTA commuter rail services in neighboring towns.

Recreation & amenities

The area features extensive green space including the Great Brook Farm State Park and various local conservation areas, alongside shopping centers along the Route 3A corridor.

Rental market

The rental market is characterized by low vacancy rates and steady demand driven by professionals working in the nearby technology and medical sectors.

Economy & employers

The local economy is anchored by a diverse mix of technology, life sciences, and manufacturing firms, benefiting from the broader Middlesex County economic engine.

Transportation & infrastructure

The area is served by major highway corridors including Route 3 and I-93, facilitating regional connectivity.

Development pipeline

Development is focused on transit-oriented housing and commercial upgrades near the town center and major arterial roads.

Special districts

Parcels are subject to municipal taxes and standard school district levies; no major MUD/PID districts are prevalent.

Insurance & hazard market

Property insurance premiums are stable but reflect regional risks associated with winter weather and coastal storm impacts.

Discovery profile2023 American Community Survey 5-Year Estimates
Census profile · ZCTA 01821, Middlesex County, MA
Population
42,119
Median household income
$139,706

Data retrieved from Census Bureau profile for Billerica town.

Public schools with an address here · 2

Public schools whose reported address is in this area (NCES). Not attendance boundaries — schools that serve residents may sit outside it. Check the district's address locator for assignment.

Billerica Memorial High SchoolHigh7/10Billerica Public SchoolsPrimary high school serving the town.
Marshall Middle SchoolMiddle6/10Billerica Public SchoolsServes grades 6-8.
School districts
Billerica Public SchoolsB+District serves the entire town with a focus on college and career readiness.
Utilities & services
ElectricNational GridPrimary provider for the region.
Natural GasNational GridWidely available in residential areas.
InternetXfinity/VerizonHigh-speed cable and fiber options available.
Major employers & industries
Billerica Public SchoolsEducationMajor local employer.
Various Biotech FirmsLife SciencesSignificant regional presence.
Major amenities · ZIP 01821
Theme, amusement & water parks
19 · 20 mi
Entertainment venues, stadiums & amphitheaters
13 · 20 mi
Family fun & things to do
20+ · 13 mi
Museums, galleries & history
20+ · 20 mi
Parks, trails & nature
20+ · 13 mi
Shopping & dining districts
3 · 13 mi

Theme parks, venues, golf, airports, museums, water and shopping across the area from Google Maps, ranked by popularity within the radius shown.

Amenities & attractions3 retained amenities · 1 development on the horizon
Inside this ZIP
Great Brook Farm State Park
Park

Large state park with trails and a working dairy farm.

Shawsheen River
Waterfront

Provides recreational opportunities for kayaking and fishing.

Billerica Mall
Shopping

Local retail hub serving the immediate community.

On the horizon · announced & under construction
Billerica Center RevitalizationMixed-useApprovedOngoing efforts to improve walkability and commercial density in the town center.
Sources · 4 cited

Key-figure check: no independent anchor retained yet — first-researched cycles establish the anchor baseline this pass.