Immigration courts hearing cases from Massachusetts
Massachusetts: where cases of people living under these ZIP codes were heard, over the last five fiscal years.
EOIR data through August 31, 2026 · built September 11, 2026 · What these dates mean
Courts
- Boston Immigration Court64.9% · appears in 226 ZIP codes · leads in 132 · 85,208 cases heard
- Chelmsford Immigration Court27.1% · appears in 213 ZIP codes · leads in 83 · 35,628 cases heard
- Hartford Immigration Court2.2% · appears in 123 ZIP codes · leads in 11 · 2,943 cases heard
This is an observation, not a court assignment: it shows where cases of people with this ZIP code were heard, not where filings are directed. Check the official assignment on the EOIR site.
How this is counted
Only cases where the person was not detained are counted: a detained person's case is heard where the facility is, so a home address says nothing about jurisdiction. The court is the one of the latest proceeding started within the last five fiscal years, and the ZIP code is the current one in the release — so for someone who has moved, the case may still sit with the earlier court. A ZIP code enters the table at fifty cases; for half of them the leading court takes nine cases in ten, but for one in six it takes less than three quarters, which is why every court carries its share and its volume.
ZIP ranges in this state
010×× · 011×× · 012×× · 013×× · 014×× · 015×× · 016×× · 017×× · 018×× · 019×× · 020×× · 021×× · 023×× · 024×× · 025×× · 026×× · 027××
How this percentage is calculated
Grant rate = granted / (granted + denied). Administrative closures, withdrawals, abandonment and "not adjudicated" are excluded from the denominator. What is counted is a decision per proceeding, not per application: asylum, withholding and CAT protection are almost always asked for together, so withholding and CAT grants are counted separately from asylum. The U.S. fiscal year runs October 1 – September 30.