New York attorney record · Judicial Dept 4
John P. Costello
Suny At Buffalo alumna, admitted to the New York bar in 1979, registered office in Rochester, NY. A half-lifetime's worth of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1979
- Admitted
- 47
- Years in bar
- 1281278
- NY reg #
The record in one line
John P. Costello has spent 47 years on the register since admission in 1979, one of the longest-standing active practitioners the state bar carries at 92% tenure percentile.
- 47 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #215 of 2,355
- by tenure in Rochester office peers
- Law school
- Suny At Buffalo
Data updated September 2026
What this profile tells you
Bar status & tenure
John P. Costello has carried New York bar registration 1281278 for the better part of a career, still active and in good standing. Registration is recorded within Judicial Department 4, the appellate division overseeing this attorney's home district.
Practice context & education
The attorney's registration lists a business address in Rochester, NY (Monroe County), ZIP 14618. Educational background: SUNY AT BUFFALO.
State context & due diligence
Across a career spanning 47 years, John P. Costello has remained part of the New York bar's active cohort, a share of the register detailed further below.
Experience vs. the active New York bar
John P. Costello's 47 years since a 1979 admission places this record near the far edge of the statewide tenure curve below.
47 years on the New York bar
Years since admission, all currently-active NY attorneys
47 Top 8% higher than 92% of 290,787 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 · September 2026
Tenure among Rochester, NY office peers
John P. Costello is earlier in the Rochester, NY office cohort than most peers: local tenure rank #215 of 2,355 (9th percentile). See the Rochester attorney directory .
- Local rank
- #215
- City cohort
- 2,355
- Local percentile
- 9th
- Admitted
- 1979
Nearest tenure peers in Rochester
- Mary Jane Angelone admitted 1979 · 47 yr
- Alfred Paul Britton admitted 1979 · 47 yr
- Richard Thomas Ciaccio admitted 1979 · 47 yr
- Rae A. Clark Jr. admitted 1979 · 47 yr
How local rank is computed
Rank uses years since NY-bar admission among non-deceased registry rows that list the same office city and state, a local placement, not a statewide claim. Source: NY Office of Court Administration Attorney Registration · as of September 2026. Derived local rank, not published upstream.
How John compares to fellow Suny At Buffalo alumni
Among the 1,234 Suny At Buffalo graduates in the New York register, John P. Costello is longer-tenured than 99%.
47 years vs. Suny At Buffalo alumni
Years since admission - 1,234 NY-registered alumni of this school
47 Top 1% higher than 99% of 1,234 fellow alumni
Each bar is a band; taller bars hold more fellow alumni. 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 · September 2026
The 1979 admission class today
Of the 3,974 attorneys admitted to the New York bar in 1979, 53.9% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 1281278
- Year Admitted
- 1979 (47 yrs · veteran)
- Judicial Department
- 4
- Next Registration
- Feb 2028
Location & Contact
- City
- Rochester, NY
- County
- Monroe
- ZIP Code
- 14618
- Phone
- (585) 244-2873
Education
SUNY AT BUFFALO
Status Distribution Across the New York Bar
John P. Costello's current status, "Currently registered", places this attorney in the 67.2% of the 432,625-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.
Near-tenure Suny At Buffalo alumni
Fellow alumni on the NY register whose admission year is closest to 1979 .
Same admission year (1979), other cities
NY-registered attorneys admitted in 1979 whose listed office city differs from Rochester, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for John P. Costello: closest NY bar admission year outside NY, and closest out-of-state office cities by how many NY-registered attorneys they list (~2,356 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~1979)
Counts come from the NY State Office of Court Administration registration extract; peers are not a competence or practice-area ranking.
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Compare attorneys →Before you rely on this record
John P. 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 John Costello licensed?
John Costello is licensed to practice law in New York.
When was John P. Costello admitted to the bar?
John P. Costello's admission to the New York bar dates back to 1979.
Where did John P. Costello go to law school?
John P. Costello attended SUNY AT BUFFALO.
Is John P. Costello in good standing?
Yes, John P. Costello holds active bar status ("Currently registered").
Cite this page & disclosure
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.