US rank #2691 Girls' name Peak 1958 334,084 births

Kathy — #2691 US girls' name

334,084 babies named Kathy in U.S. Social Security records since 1910, with the highest year being 1958. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1910s571920s1981930s12541940s347661950s1579301960s1011281970s227071980s69771990s43122000s30202010s13812020s354
#2691
of 17,661 girls in use

More common than 85% of names given to girls today.

1950s
Peak decade

47% of everyone ever named Kathy was born in this single decade.

1958
Single peak year

23,940 babies were named Kathy in 1958 — its busiest year on record.

What the Data Says About Kathy

The Social Security Administration has registered 334,084 babies named Kathy between 1910 and 2024, spanning 115 consecutive years of U.S. birth records. As a girl's name, Kathy currently holds the #2691 rank among girls for 2024. The name reached its historical peak in 1958, when 23,940 babies received it in a single year.

Decade-level aggregation shows that Kathy performed strongest in the 1950s, accumulating 157,930 births during that ten-year window. Across the 12 decades of recorded activity, Kathy shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 27,163 births — the largest state-level total in the dataset — followed by Ohio and Texas. In total, SSA state-level files list Kathy in 51 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Kathy 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 334,084 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.

Kathy at a glance

Outside the top 1,000

Total births

334,084

Since 1910

115 years of records

Peak year

1958

23,940 births that year

Strongest decade: 1950s

Current rank

#2,691

Among girls

As of 2024

Active since

1910

Recorded for 115 years

Last year on file: 2024

Kathy popularity over time — girls

Annual U.S. births registered with the Social Security Administration · 2024–1910

Outside the top 1,000
Peak year (1958)
23,940
Annual births at peak — across 115 years of records
-10,000010,00020,00030,000 202420101996198219681954194019261910 5

Kathy popularity over time — boys

739 total births recorded since 1942 (Kathy as boys' name)

Unisex variant — 739 births
0102030405060 19881978197119651959195319471942 8

Kathy by decade

Total births in each ten-year window — peak vs trough at a glance

Peak: 1950s
Peak decade
1950s
157,930 births that decade — 47% of Kathy's all-time total
1910s571920s1981930s12541940s347661950s1579301960s1011281970s227071980s69771990s43122000s30202010s13812020s354

Kathy by state

Where Kathy concentrates geographically — total births since 1910

Geographically diffuse
Top 8 states by recorded births for the name Kathy
Rank State Visual share Births Share of total
#1 California
27,163 8.1%
#2 Ohio
21,556 6.5%
#3 Texas
19,076 5.7%
#4 Pennsylvania
18,435 5.5%
#5 Illinois
18,077 5.4%
#6 Michigan
16,313 4.9%
#7 New York
16,105 4.8%
#8 Indiana
12,656 3.8%
California share of Kathy's total US births 8.1%
Even split

27,163 of 334,084 births nationwide. Compared to a flat distribution across 51 reporting states.

Kathy appears in 51 states. Explore state details →

Frequently Asked Questions

How popular is the name Kathy?
334,084 babies have been named Kathy since 1910. It currently ranks #2691 among girls. The peak year was 1958 with 23,940 births.
When was Kathy most popular?
Kathy was most popular in the 1950s decade with 157,930 total births. The single peak year was 1958.
Where is Kathy most popular?
The top states for the name Kathy are California (27,163 births), Ohio (21,556 births), Texas (19,076 births).
How long has the name Kathy been used?
Kathy has been recorded in Social Security data since 1910, spanning 115 years of data through 2024.
What names are similar to Kathy?
Names with a similar sound or spelling include Kathleen, Katherine, Kathryn, Katie, and 4 more. These share a common prefix and are also used for girls.

Keep exploring Kathy

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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, 1910–2024 (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.