Recorded 1888–1950 Girls' name Peak 1920 199 births

Zilphia — girls' name

199 babies named Zilphia in U.S. Social Security records since 1888, with the highest year being 1920. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1880s51890s61900s231910s551920s801930s131940s111950s6
1920s
Peak decade

40% of everyone ever named Zilphia was born in this single decade.

1920
Single peak year

16 babies were named Zilphia in 1920 — its busiest year on record.

What the Data Says About Zilphia

The Social Security Administration has registered 199 babies named Zilphia between 1888 and 1950, spanning 63 consecutive years of U.S. birth records. As a girl's name, Zilphia currently falls outside the top 1,000 girls' names for 1950. The name reached its historical peak in 1920, when 16 babies received it in a single year.

Decade-level aggregation shows that Zilphia performed strongest in the 1920s, accumulating 80 births during that ten-year window. Across the 8 decades of recorded activity, Zilphia shows a clear decline from its mid-century high. Geographically, the name is most concentrated in North Carolina, which accounts for 17 births — the largest state-level total in the dataset — followed by . In total, SSA state-level files list Zilphia in 1 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Zilphia 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 199 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.

Zilphia at a glance

Last recorded 1950

Total births

199

Since 1888

63 years of records

Peak year

1920

16 births that year

Strongest decade: 1920s

Current rank

Unranked

Outside the modern top-1,000

As of 1950

Active since

1888

Recorded for 63 years

Last year on file: 1950

Zilphia popularity over time

Annual U.S. births registered with the Social Security Administration · 1950–1888

Last recorded 1950
Peak year (1920)
16
Annual births at peak — across 63 years of records
05101520 19501930192619211917191119021888 5

Zilphia by decade

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

Peak: 1920s
Peak decade
1920s
80 births that decade — 40% of Zilphia's all-time total
1880s51890s61900s231910s551920s801930s131940s111950s6

Zilphia by state

Where Zilphia concentrates geographically — total births since 1888

Geographically diffuse
Top 1 states by recorded births for the name Zilphia
Rank State Visual share Births Share of total
#1 North Carolina
17 8.5%
North Carolina share of Zilphia's total US births 8.5%

17 of 199 births nationwide.

Frequently Asked Questions

How popular is the name Zilphia?
199 babies have been named Zilphia since 1888. It was last recorded in 1950. The peak year was 1920 with 16 births.
When was Zilphia most popular?
Zilphia was most popular in the 1920s decade with 80 total births. The single peak year was 1920.
Where is Zilphia most popular?
The top states for the name Zilphia are North Carolina (17 births).
How long has the name Zilphia been used?
Zilphia has been recorded in Social Security data since 1888, spanning 63 years of data through 1950.
What names are similar to Zilphia?
Names with a similar sound or spelling include Zilpha, Zillah, Zilla, Zilah, and 4 more. These share a common prefix and are also used for girls.

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, 1888–1950 (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.