Recorded 1908–1985 Boys' name Peak 1921 931 births

Thelbert — boys' name

931 babies named Thelbert in U.S. Social Security records since 1908, with the highest year being 1921. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1900s101910s1531920s2301930s2161940s1571950s911960s381970s191980s17
1920s
Peak decade

25% of everyone ever named Thelbert was born in this single decade.

1921
Single peak year

32 babies were named Thelbert in 1921 — its busiest year on record.

What the Data Says About Thelbert

The Social Security Administration has registered 931 babies named Thelbert between 1908 and 1985, spanning 78 consecutive years of U.S. birth records. As a boy's name, Thelbert currently falls outside the top 1,000 boys' names for 1985. The name reached its historical peak in 1921, when 32 babies received it in a single year.

Decade-level aggregation shows that Thelbert performed strongest in the 1920s, accumulating 230 births during that ten-year window. Across the 9 decades of recorded activity, Thelbert shows a clear decline from its mid-century high. Geographically, the name is most concentrated in North Carolina, which accounts for 63 births — the largest state-level total in the dataset — followed by Texas and Virginia. In total, SSA state-level files list Thelbert in 5 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Thelbert 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 931 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.

Thelbert at a glance

Last recorded 1985

Total births

931

Since 1908

78 years of records

Peak year

1921

32 births that year

Strongest decade: 1920s

Current rank

Unranked

Outside the modern top-1,000

As of 1985

Active since

1908

Recorded for 78 years

Last year on file: 1985

Thelbert popularity over time

Annual U.S. births registered with the Social Security Administration · 1985–1908

Last recorded 1985
Peak year (1921)
32
Annual births at peak — across 78 years of records
010203040 198519631953194519371929192119131908 5

Thelbert by decade

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

Peak: 1920s
Peak decade
1920s
230 births that decade — 25% of Thelbert's all-time total
1900s101910s1531920s2301930s2161940s1571950s911960s381970s191980s17

Thelbert by state

Where Thelbert concentrates geographically — total births since 1908

Geographically diffuse
Top 5 states by recorded births for the name Thelbert
Rank State Visual share Births Share of total
#1 North Carolina
63 6.8%
#2 Texas
22 2.4%
#3 Virginia
6 0.6%
#4 Kentucky
5 0.5%
#5 Tennessee
5 0.5%
North Carolina share of Thelbert's total US births 6.8%
Even split

63 of 931 births nationwide. Compared to a flat distribution across 5 reporting states.

Frequently Asked Questions

How popular is the name Thelbert?
931 babies have been named Thelbert since 1908. It was last recorded in 1985. The peak year was 1921 with 32 births.
When was Thelbert most popular?
Thelbert was most popular in the 1920s decade with 230 total births. The single peak year was 1921.
Where is Thelbert most popular?
The top states for the name Thelbert are North Carolina (63 births), Texas (22 births), Virginia (6 births).
How long has the name Thelbert been used?
Thelbert has been recorded in Social Security data since 1908, spanning 78 years of data through 1985.
What names are similar to Thelbert?
Names with a similar sound or spelling include Theodore, Theo, Theron, Theadore, and 4 more. These share a common prefix and are also used for boys.

Keep exploring Thelbert

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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, 1908–1985 (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.