Declan Lowney
There are approximately 1 people named Declan Lowney living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 342,754,338 Americans.
This estimate combines SSA birth records for the first name Declan with Census Bureau frequency data for the surname Lowney. Below you will find a breakdown of both names, including popularity trends, gender data, and Census demographics where available.
Expected bearers
1
1 in 342,754,338
Named Declan
56K
Alive today
Named Lowney
1.3K
Alive today
US population
343M
Denominator
Estimated living: 56K
Rarity: Uncommon
Gender: Male
Peak year: 2019
Average age: 11
Top Census group: White (85.0%)
Estimated bearers: 1.3K
Rarity: Rare
Census rank: #22,483
Per 100K: 0.39
Top ancestry: White (88.3%)
First name trend
Declan: popularity over time
Year-by-year SSA birth registrations for the first name Declan. The peak year was 2019 with 4,007 births. The average person named Declan today is 11 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Declan
Self-reported race and ethnicity breakdown for people with the first name Declan, from the 2020 US Census Bureau first-name tables. The largest published group is White at 85.0%.
The bar chart below shows how people with the first name Declan described their own race and ethnicity on the 2020 Census form. These are self-reported numbers, and they describe the population who happened to carry the name Declan at the time of the Census. A first name does not determine a person's race or ethnicity.
- White85.0% · 33,174
- Two or more races6.5% · 2,539
- Hispanic or Latino6.0% · 2,347
- Black or African American1.1% · 436
- Asian and Pacific Islander1.0% · 408
- American Indian and Alaska Native0.3% · 120
Ethnicity
Ancestry of the Lowney surname
Self-reported race and ethnicity breakdown for people with the surname Lowney, from the 2020 US Census Bureau. The largest group is White at 88.3%.
The bar chart below shows how people with the surname Lowney described their own race and ethnicity on the 2020 Census form. These are self-reported numbers, and they describe the population who happened to carry the surname Lowney at the time of the Census. A surname does not determine a person's race or ethnicity.
- White88.3% · 1,036
- Hispanic or Latino5.3% · 62
- Black or African American3.1% · 36
- Two or more races2.0% · 24
- Asian and Pacific Islander1.3% · 15
Methodology
How we calculated this
The first name Declan has a living-bearer frequency of 0.0163% of the US population, based on 55,872 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
Even though the Census Bureau now publishes first-name tables, we do not use that file as the main first-name input for this estimate. The latest first-name Census snapshot is from 2020, which makes it 6 years old today. Because Census first-name data is only released once every 10 years, SSA birth records plus CDC survival rates give a better current estimate of how many people are likely alive with the name Declan right now.
The surname Lowney appears at a rate of 0.39 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0004%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 1 people with the full name Declan Lowney. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Declan
FAQ
Declan Lowney: questions and answers
How many people are named Declan Lowney?
We estimate approximately 1 people in the United States share the full name Declan Lowney. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0163%) with the surname frequency (0.39 per 100K) against the current US population.
How rare is the name Declan Lowney?
We classify Declan Lowney as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Declan a male or female name?
Declan is predominantly male. Out of 56,351 total SSA registrations, 99.3% were male and 0.7% were female. See the full Declan profile for detailed gender data.
Where does this data come from?
First-name data comes from the Social Security Administration's national baby name files (1880 to 2024). Surname data comes from the 2020 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.
How many Americans are named Declan Lowney?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.