Tammy — #4782 US girls' name
331,974 babies named Tammy in U.S. Social Security records since 1934, with the highest year being 1963. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
More common than 73% of names given to girls today.
55% of everyone ever named Tammy was born in this single decade.
21,193 babies were named Tammy in 1963 — its busiest year on record.
What the Data Says About Tammy
The Social Security Administration has registered 331,974 babies named Tammy between 1934 and 2024, spanning 91 consecutive years of U.S. birth records. As a girl's name, Tammy currently holds the #4782 rank among girls for 2024. The name reached its historical peak in 1963, when 21,193 babies received it in a single year.
Decade-level aggregation shows that Tammy performed strongest in the 1960s, accumulating 182,224 births during that ten-year window. Across the 10 decades of recorded activity, Tammy shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 21,377 births — the largest state-level total in the dataset — followed by Ohio and Texas. In total, SSA state-level files list Tammy in 51 of the 51 U.S. reporting jurisdictions.
No etymological entry is currently available for Tammy 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 331,974 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.
Tammy at a glance
Outside the top 1,000Peak year
Current rank
Active since
Tammy popularity over time — girls
Annual U.S. births registered with the Social Security Administration · 2024–1934
- Peak year (1963)
- 21,193
- Annual births at peak — across 91 years of records
Currently ranks #4782 among girls.
331,974 total births across 91 years of SSA records. Peaked in 1963 with 21,193 births in a single year.
Tammy popularity over time — boys
1,392 total births recorded since 1938 (Tammy as boys' name)
Unisex use remains the minority pattern
The boys' variant of Tammy accounts for 0% of total recorded use across both genders.
Tammy by decade
Total births in each ten-year window — peak vs trough at a glance
- Peak decade
- 1960s
- 182,224 births that decade — 55% of Tammy's all-time total
Tammy decade highlights
- Peak decade 182,224 births
- Runner-up 98,830 births
- Modern era share 2010s + 2020s
- Decades tracked with recorded births
1960s was Tammy's strongest decade
182,224 babies received the name during that ten-year window — about 55% of all-time use.
Tammy by state
Where Tammy concentrates geographically — total births since 1934
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 21,377 | 6.4% |
| #2 | Ohio | | 19,136 | 5.8% |
| #3 | Texas | | 18,953 | 5.7% |
| #4 | Pennsylvania | | 17,373 | 5.2% |
| #5 | New York | | 15,682 | 4.7% |
| #6 | Michigan | | 14,778 | 4.5% |
| #7 | Illinois | | 14,584 | 4.4% |
| #8 | North Carolina | | 14,530 | 4.4% |
21,377 of 331,974 births nationwide. Compared to a flat distribution across 51 reporting states.
Top 5 states
- California 6.4% of nationwide
- Ohio 5.8% of nationwide
- Texas 5.7% of nationwide
- Pennsylvania 5.2% of nationwide
- New York 4.7% of nationwide
Recorded in 51 of 51 SSA jurisdictions
California accounts for 6.4% of all recorded births nationwide — a relatively diffuse profile for this name.
Tammy appears in 51 states. Explore state details →
Frequently Asked Questions
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Keep exploring Tammy
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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, 1934–2024 (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.