New York attorney record · Judicial Dept 3
Terrance Arthur Costello
William Mitchell College alumna, admitted to the New York bar in 1987, registered office in Saint Paul, MN. Decades of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1987
- Admitted
- 39
- Years in bar
- 2146124
- NY reg #
The record in one line
With 39 years on the register since a 1987 admission, Terrance Arthur Costello ranks among the New York bar's most senior active practitioners, longer-tenured than 79% of the currently-active bar.
- 39 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 21%
- by tenure among active NY attorneys
- Law school
- William Mitchell College
Data updated May 2026
What this profile tells you
Bar status & tenure
Registration 2146124 with the New York bar authority has long belonged to Terrance Arthur Costello, a veteran practitioner still in active good standing. Registration is recorded within Judicial Department 3, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Terrance A. Costello, Attorney At Law, PLLC, located in Saint Paul, MN, ZIP 55107. Educational background: WILLIAM MITCHELL COLLEGE (36 registered alumni).
State context & due diligence
After 39 years on the register, Terrance Arthur Costello still falls within the New York bar's active cohort, a share of the register detailed further below.
Experience vs. the active New York bar
Few active New York attorneys match Terrance Arthur Costello's 39 years since admission in 1987. The histogram plots that tenure against every currently-active attorney in the state.
39 years on the New York bar
Years since admission, all currently-active NY attorneys
39 Top 21% higher than 79% of 284,296 active NY attorneys
Each bar is a band; taller bars hold more active NY attorneys. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · May 2026
William Mitchell College's active-bar rate
Of William Mitchell College's 36 alumni in the New York register, 30.6% currently hold "Currently registered" status, below the statewide average.
William Mitchell College alumni, active-bar rate
The 1987 admission class today
Of the 5,948 attorneys admitted to the New York bar in 1987, 71.3% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 2146124
- Year Admitted
- 1987 (39 yrs · veteran)
- Judicial Department
- 3
- Next Registration
- Oct 2027
Location & Contact
- Company
- Terrance A. Costello, Attorney At Law, PLLC
- City
- Saint Paul, MN
- ZIP Code
- 55107
- Phone
- (651) 246-5459
Education
Status Distribution Across the New York Bar
Terrance Arthur Costello's current status, "Currently registered", places this attorney in the 66.2% of the 429,620-attorney New York register currently marked active.
Full statewide breakdown & source note
Source: NY Office of Court Administration, Attorney Registrations. Status counts reflect the latest reporting cycle. Bar status confirms registration only; it does not imply competence, specialty fit, or freedom from complaints.
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Compare attorneys →Before you rely on this record
Terrance Arthur Costello's "Currently registered" listing confirms bar standing only, it is a registration fact to verify, not a verdict on quality or competence.
Frequently Asked Questions
Where is Terrance Costello licensed?
Terrance Costello is licensed to practice law in New York.
When was Terrance Arthur Costello admitted to the bar?
Terrance Arthur Costello's admission to the New York bar dates back to 1987.
Where did Terrance Arthur Costello go to law school?
Terrance Arthur Costello attended WILLIAM MITCHELL COLLEGE.
What company does Terrance Arthur Costello work for?
Terrance Arthur Costello is associated with Terrance A. Costello, Attorney At Law, PLLC in Saint Paul, MN.
Is Terrance Arthur Costello in good standing?
Yes, Terrance Arthur Costello holds active bar status ("Currently registered").
Sourced from the NY Office of Court Administration, informational only, not legal advice. Full disclosure.
Read our methodology - how this data is sourced, computed, and verified.