US rank #15271 Girls' name Peak 1917 2,094 births

Flo — #15271 US girls' name

2,094 babies named Flo in U.S. Social Security records since 1881, with the highest year being 1917. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1880s561890s1841900s1981910s3581920s4341930s3961940s2541950s1431960s591970s72020s5
#15271
of 17,661 girls in use

More common than 14% of names given to girls today.

1920s
Peak decade

21% of everyone ever named Flo was born in this single decade.

1917
Single peak year

57 babies were named Flo in 1917 — its busiest year on record.

What the Data Says About Flo

The Social Security Administration has registered 2,094 babies named Flo between 1881 and 2024, spanning 144 consecutive years of U.S. birth records. As a girl's name, Flo currently holds the #15271 rank among girls for 2024. The name reached its historical peak in 1917, when 57 babies received it in a single year.

Decade-level aggregation shows that Flo performed strongest in the 1920s, accumulating 434 births during that ten-year window. Across the 11 decades of recorded activity, Flo shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Texas, which accounts for 101 births — the largest state-level total in the dataset — followed by Pennsylvania and Ohio. In total, SSA state-level files list Flo in 11 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Flo 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 2,094 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.

Flo at a glance

Outside the top 1,000

Total births

2,094

Since 1881

144 years of records

Peak year

1917

57 births that year

Strongest decade: 1920s

Current rank

#15,271

Among girls

As of 2024

Active since

1881

Recorded for 144 years

Last year on file: 2024

Flo popularity over time

Annual U.S. births registered with the Social Security Administration · 2024–1881

Outside the top 1,000
Peak year (1917)
57
Annual births at peak — across 144 years of records
0204060 202419571946193519241913190218911881 7

Flo by decade

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

Peak: 1920s
Peak decade
1920s
434 births that decade — 21% of Flo's all-time total
1880s561890s1841900s1981910s3581920s4341930s3961940s2541950s1431960s591970s72020s5

Flo by state

Where Flo concentrates geographically — total births since 1881

Geographically diffuse
Top 8 states by recorded births for the name Flo
Rank State Visual share Births Share of total
#1 Texas
101 4.8%
#2 Pennsylvania
98 4.7%
#3 Ohio
29 1.4%
#4 Kentucky
26 1.2%
#5 Missouri
22 1.1%
#6 Illinois
17 0.8%
#7 Indiana
10 0.5%
#8 Louisiana
10 0.5%
Texas share of Flo's total US births 4.8%
Even split

101 of 2,094 births nationwide. Compared to a flat distribution across 11 reporting states.

Flo appears in 11 states. Explore state details →

Frequently Asked Questions

How popular is the name Flo?
2,094 babies have been named Flo since 1881. It currently ranks #15271 among girls. The peak year was 1917 with 57 births.
When was Flo most popular?
Flo was most popular in the 1920s decade with 434 total births. The single peak year was 1917.
Where is Flo most popular?
The top states for the name Flo are Texas (101 births), Pennsylvania (98 births), Ohio (29 births).
How long has the name Flo been used?
Flo has been recorded in Social Security data since 1881, spanning 144 years of data through 2024.
What names are similar to Flo?
Names with a similar sound or spelling include Florence, Flora, Flossie, Florine, and 4 more. These share a common prefix and are also used for girls.

Keep exploring Flo

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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, 1881–2024 (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.