Isadore — #8292 US boys' name
5,699 babies named Isadore in U.S. Social Security records since 1880, with the highest year being 1916. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
More common than 42% of names given to boys today.
35% of everyone ever named Isadore was born in this single decade.
273 babies were named Isadore in 1916 — its busiest year on record.
What the Data Says About Isadore
The Social Security Administration has registered 5,699 babies named Isadore between 1880 and 2024, spanning 145 consecutive years of U.S. birth records. As a boy's name, Isadore currently holds the #8292 rank among boys for 2024. The name reached its historical peak in 1916, when 273 babies received it in a single year.
Decade-level aggregation shows that Isadore performed strongest in the 1910s, accumulating 1,980 births during that ten-year window. Across the 15 decades of recorded activity, Isadore shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Pennsylvania, which accounts for 674 births — the largest state-level total in the dataset — followed by New York and Illinois. In total, SSA state-level files list Isadore in 21 of the 51 U.S. reporting jurisdictions.
No etymological entry is currently available for Isadore in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 5,699 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.
Isadore at a glance
Outside the top 1,000Peak year
Current rank
Active since
Isadore popularity over time — boys
Annual U.S. births registered with the Social Security Administration · 2024–1880
- Peak year (1916)
- 273
- Annual births at peak — across 145 years of records
Currently ranks #8292 among boys.
5,699 total births across 145 years of SSA records. Peaked in 1916 with 273 births in a single year.
Isadore popularity over time — girls
195 total births recorded since 1885 (Isadore as girls' name)
Unisex use remains the minority pattern
The girls' variant of Isadore accounts for 3% of total recorded use across both genders.
Isadore by decade
Total births in each ten-year window — peak vs trough at a glance
- Peak decade
- 1910s
- 1,980 births that decade — 35% of Isadore's all-time total
Isadore decade highlights
- Peak decade 1,980 births
- Runner-up 1,364 births
- Modern era share 2010s + 2020s
- Decades tracked with recorded births
1910s was Isadore's strongest decade
1,980 babies received the name during that ten-year window — about 35% of all-time use.
Isadore by state
Where Isadore concentrates geographically — total births since 1880
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Pennsylvania | | 674 | 11.8% |
| #2 | New York | | 657 | 11.5% |
| #3 | Illinois | | 258 | 4.5% |
| #4 | New Jersey | | 187 | 3.3% |
| #5 | Massachusetts | | 179 | 3.1% |
| #6 | Michigan | | 142 | 2.5% |
| #7 | Ohio | | 129 | 2.3% |
| #8 | Louisiana | | 88 | 1.5% |
674 of 5,699 births nationwide. Compared to a flat distribution across 21 reporting states.
Top 5 states
- Pennsylvania 11.8% of nationwide
- New York 11.5% of nationwide
- Illinois 4.5% of nationwide
- New Jersey 3.3% of nationwide
- Massachusetts 3.1% of nationwide
Recorded in 21 of 51 SSA jurisdictions
Pennsylvania accounts for 11.8% of all recorded births nationwide — a relatively diffuse profile for this name.
Isadore appears in 21 states. Explore state details →
Frequently Asked Questions
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Keep exploring Isadore
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Data Sources
Data as of 2024. Source: U.S. Social Security Administration (SSA).
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 1880–2024 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.
State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.