01821 Real Estate
Homes for sale in ZIP code 01821, covering parts of Billerica, Chelmsford and Stoneham. Live MLS listings, recent sales, and market stats for this ZIP, refreshed daily.
ZIP 01821 market snapshot
Calculated by INNOVATE Real Estate from MLS-sourced listing data for ZIP 01821, refreshed nightly.
Currently for sale in 01821
See all 116 →
Recently sold in 01821
Last 6 months. Real comps from the MLS, not estimates.
Popular neighborhoods in 01821
Ranked by active MLS listings right now.
Walkability
Blended score for ZIP 01821's center, calculated by INNOVATE Real Estate from two sources: the EPA's National Walkability Index (street network, transit, land-use mix) and Google Places amenity data (what's actually reachable on foot from this point). 60% EPA National Walkability Index + 40% nearby-amenity density (Google Places).
Nearby schools
Within 10 miles. School directory data from the National Center for Education Statistics (NCES), accessed via the Urban Institute Education Data API. Local Score is calculated by INNOVATE Real Estate; where a state rating is shown, it comes from that state's own official school report card.
- Enrollment
- 412
- Student:teacher ratio
- 12.9:1
- District
- Billerica
- Enrollment
- 529
- Student:teacher ratio
- 11.5:1
- District
- Billerica
- Enrollment
- 1,718
- Student:teacher ratio
- 13.7:1
- District
- Billerica
Current Weather
Live conditions in Billerica, from Laurence G Hanscom Field Airport.
Cities in 01821
Cities near 01821
ZIP codes near 01821
ZIP 01821 real estate FAQ
How many homes are for sale in ZIP 01821 right now?+
There are currently 145 active listings in ZIP 01821, Massachusetts, pulled directly from the MLS.
What is the median home price in ZIP 01821?+
The median list price for active listings in ZIP 01821 is $650,000. Homes are spending an average of 72 days on market.
Is ZIP 01821's housing market up or down this year?+
Median closed-sale prices in ZIP 01821 have fallen 0.6% year over year, based on trailing 12-month MLS sales.
What are the most popular neighborhoods in ZIP 01821?+
Based on current active listings, the neighborhoods with the most homes for sale in ZIP 01821 are Center.
What schools serve ZIP 01821?+
The closest public schools to ZIP 01821's center are Parker, Locke Middle, Billerica Memorial High School. See the schools section above for grade levels and district details.
Is ZIP 01821 walkable?+
ZIP 01821's center has a walkability score of 75 out of 100, blending EPA's National Walkability Index with nearby-amenity density.