Recorded 1995–1999 Unisex name Peak 1998 49 births

Unkown — boys' name

49 babies named Unkown in U.S. Social Security records since 1995, with the highest year being 1998. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1990s49
1990s
Peak decade

100% of everyone ever named Unkown was born in this single decade.

1998
Single peak year

14 babies were named Unkown in 1998 — its busiest year on record.

What the Data Says About Unkown

The Social Security Administration has registered 49 babies named Unkown between 1995 and 1999, spanning 5 consecutive years of U.S. birth records. As a boy's name, Unkown currently falls outside the top 1,000 boys' names for 1999. The name reached its historical peak in 1998, when 14 babies received it in a single year. Unkown is classified as unisex in SSA records: the opposite-sex variant accounts for 42 additional births since 1995.

Decade-level aggregation shows that Unkown performed strongest in the 1990s, accumulating 49 births during that ten-year window. Geographically, the name is most concentrated in Iowa, which accounts for 49 births — the largest state-level total in the dataset — followed by . In total, SSA state-level files list Unkown in 1 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Unkown 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 49 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.

Unkown at a glance

Last recorded 1999

Total births

49

Since 1995

5 years of records

Peak year

1998

14 births that year

Strongest decade: 1990s

Current rank

Unranked

Outside the modern top-1,000

As of 1999

Active since

1995

Recorded for 5 years

Last year on file: 1999

Unkown popularity over time — boys

Annual U.S. births registered with the Social Security Administration · 1999–1995

Last recorded 1999
Peak year (1998)
14
Annual births at peak — across 5 years of records
46810121416 19991998199719961995 13

Unkown popularity over time — girls

42 total births recorded since 1995 (Unkown as girls' name)

Unisex variant — 42 births
567891011 19991998199719961995 10

Unkown by decade

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

Peak: 1990s
Peak decade
1990s
49 births that decade — 100% of Unkown's all-time total
1990s49

Unkown by state

Where Unkown concentrates geographically — total births since 1995

Regionally concentrated
Top 1 states by recorded births for the name Unkown
Rank State Visual share Births Share of total
#1 Iowa
49 100.0%
Iowa share of Unkown's total US births 100.0%

49 of 49 births nationwide.

Frequently Asked Questions

How popular is the name Unkown?
49 babies have been named Unkown since 1995. It was last recorded in 1999. The peak year was 1998 with 14 births.
When was Unkown most popular?
Unkown was most popular in the 1990s decade with 49 total births. The single peak year was 1998.
Where is Unkown most popular?
The top states for the name Unkown are Iowa (49 births).
Is Unkown a unisex name?
Yes, Unkown is used for both boys and girls. As a boy's name it has 49 births, and as a girl's name it has 42 births.
How long has the name Unkown been used?
Unkown has been recorded in Social Security data since 1995, spanning 5 years of data through 1999.
What names are similar to Unkown?
Names with a similar sound or spelling include Unknown, Unk. These share a common prefix and are also used for boys.

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, 1995–1999 (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.