Rilley — unisex name
72 babies named Rilley in U.S. Social Security records since 2001, with the highest year being 2009. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
56% of everyone ever named Rilley was born in this single decade.
8 babies were named Rilley in 2009 — its busiest year on record.
What the Data Says About Rilley
The Social Security Administration has registered 72 babies named Rilley between 2001 and 2021, spanning 21 consecutive years of U.S. birth records. As a girl's name, Rilley currently falls outside the top 1,000 girls' names for 2021. The name reached its historical peak in 2009, when 8 babies received it in a single year. Rilley is classified as unisex in SSA records: the opposite-sex variant accounts for 69 additional births since 2000.
Decade-level aggregation shows that Rilley performed strongest in the 2000s, accumulating 40 births during that ten-year window. Across the 3 decades of recorded activity, Rilley shows a clear decline from its mid-century high.
No etymological entry is currently available for Rilley 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 72 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.
Rilley at a glance
Last recorded 2021Peak year
Current rank
Active since
Rilley popularity over time — girls
Annual U.S. births registered with the Social Security Administration · 2021–2001
- Peak year (2009)
- 8
- Annual births at peak — across 21 years of records
No longer in the modern top-1000 — last recorded 2021.
72 total births across 21 years of SSA records. Peaked in 2009 with 8 births in a single year.
Rilley popularity over time — boys
69 total births recorded since 2000 (Rilley as boys' name)
Unisex use is substantial
The boys' variant of Rilley accounts for 49% of total recorded use across both genders.
Rilley by decade
Total births in each ten-year window — peak vs trough at a glance
- Peak decade
- 2000s
- 40 births that decade — 56% of Rilley's all-time total
Rilley decade highlights
- Peak decade 40 births
- Runner-up 27 births
- Modern era share 2010s + 2020s
- Decades tracked with recorded births
2000s was Rilley's strongest decade
40 babies received the name during that ten-year window — about 56% of all-time use.
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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, 2001–2021 (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.