Recorded 1967–2011 Girls' name Peak 1981 35 births

Nacy — girls' name

35 babies named Nacy in U.S. Social Security records since 1967, with the highest year being 1981. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1960s51980s252010s5
1980s
Peak decade

71% of everyone ever named Nacy was born in this single decade.

1981
Single peak year

7 babies were named Nacy in 1981 — its busiest year on record.

What the Data Says About Nacy

The Social Security Administration has registered 35 babies named Nacy between 1967 and 2011, spanning 45 consecutive years of U.S. birth records. As a girl's name, Nacy currently falls outside the top 1,000 girls' names for 2011. The name reached its historical peak in 1981, when 7 babies received it in a single year.

Decade-level aggregation shows that Nacy performed strongest in the 1980s, accumulating 25 births during that ten-year window. Across the 3 decades of recorded activity, Nacy shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 5 births — the largest state-level total in the dataset — followed by . In total, SSA state-level files list Nacy in 1 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Nacy 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 35 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.

Nacy at a glance

Last recorded 2011

Total births

35

Since 1967

45 years of records

Peak year

1981

7 births that year

Strongest decade: 1980s

Current rank

Unranked

Outside the modern top-1,000

As of 2011

Active since

1967

Recorded for 45 years

Last year on file: 2011

Nacy popularity over time

Annual U.S. births registered with the Social Security Administration · 2011–1967

Last recorded 2011
Peak year (1981)
7
Annual births at peak — across 45 years of records
4.555.566.577.5 201119891986198219811967 5

Nacy by decade

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

Peak: 1980s
Peak decade
1980s
25 births that decade — 71% of Nacy's all-time total
1960s51980s252010s5

Nacy by state

Where Nacy concentrates geographically — total births since 1967

Geographically diffuse
Top 1 states by recorded births for the name Nacy
Rank State Visual share Births Share of total
#1 California
5 14.3%
California share of Nacy's total US births 14.3%

5 of 35 births nationwide.

Frequently Asked Questions

How popular is the name Nacy?
35 babies have been named Nacy since 1967. It was last recorded in 2011. The peak year was 1981 with 7 births.
When was Nacy most popular?
Nacy was most popular in the 1980s decade with 25 total births. The single peak year was 1981.
Where is Nacy most popular?
The top states for the name Nacy are California (5 births).
How long has the name Nacy been used?
Nacy has been recorded in Social Security data since 1967, spanning 45 years of data through 2011.
What names are similar to Nacy?
Names with a similar sound or spelling include Nacole, Nachelle, Nacona, Nacola, 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, 1967–2011 (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.