How Many People Are Named Reilly?
Complete statistics for the name Reilly: rarity score, gender breakdown, age distribution, historical popularity, worldwide data, meaning and origin.
Reilly means 'valor' and is a name that's very rare, with only 1 in 33,566 Americans having it. That's just 9,831 people in the US today, making it a genuinely modern name since 86% are under 30.
📖 Meaning & Origin
People with life-path number 9 are often seen as compassionate and understanding.
🌍 Worldwide Usage
⚥ Gender Distribution
📊 Births by Age Group
Avg Cohort Age: 22All 9,977 recorded US births for this name, grouped by the age those individuals would be today. Not adjusted for survival, so the number living today is lower (see the living estimate above).
📈 Popularity Over Time
Peak: 1997Annual US births from SSA records · Trend: Declining
🏆 Name Scorecard
Scores 0–100 based on statistical analysis of US and worldwide name frequency
📜 Reilly Through the Generations
Reilly peaked in popularity in 1997 with 543 births, but its trend has been declining since then. Today, the average age of someone named Reilly is 22, with 8,577 under 30, 1,387 aged 30-60, and only 13 over 60. This shows how Reilly is a name that's strongly associated with younger generations.
📍 State Distribution (Top 10)
🌿 Related Names by Origin
Other names sharing Reilly's Irish roots
📄 About the Name Reilly
How Many People Have the Name Reilly?
Based on Social Security Administration birth records and age-adjusted survival modeling, approximately 39,645 people in the United States currently share the name Reilly. That works out to roughly 1 in every 8,360 Americans, placing it in the Uncommon category.
Is Reilly a Common or Rare Name?
Reilly is classified as Uncommon. The rarity scale runs from Very Common (shared by millions) through Common, Uncommon, Rare, and Very Rare. Understanding where a name sits helps parents gauge uniqueness, genealogists narrow down records, and individuals settle debates about their own name's distinctiveness.
What Does the Name Reilly Mean?
Reilly means "valor" and comes from Irish origins. The name carries a life-path numerology number of 9.
Gender Breakdown
Of all recorded bearers of Reilly in SSA data, approximately 45% are male and 55% are female.
When Was Reilly Most Popular?
The name Reilly reached peak popularity in 1997, with 543 babies registered that year. Current trend: Declining.
How Is This Data Calculated?
All figures are statistical estimates, not exact government headcounts. The underlying data comes from the SSA National Baby Names dataset. Full methodology is explained on the methodology page.
❓ Frequently Asked Questions
How many people are named Reilly?
Approximately 39,645 people named Reilly live in the United States today. All-time US births on record total 39,645. That works out to roughly 1 in 8,360 Americans.
Is Reilly a rare name?
Reilly is classified as Uncommon in the United States. Approximately 1 in every 8,360 Americans has this name.
What does the name Reilly mean?
Reilly means "valor" and comes from Irish origins.
Is Reilly more male or female?
Based on SSA records, 45% of people named Reilly are male and 55% are female.
When was Reilly most popular?
Reilly peaked in 1997 with 543 births that year. Current trend: Declining.
How accurate are these statistics?
All figures are statistical estimates based on SSA birth records and age-adjusted modeling. See the methodology page for full details.