Boys' name · since 1951
Declan
Declan has 58,547 recorded births since 1951 in federal Social Security data, most heavily in 2019 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #456 of 45,481
- all-time among boys
- #139 of 13,930
- 2025 SSA year
- 58,547
- born since 1951
- 2010s
- peak decade
Yes -- Declan is the #139 most popular boys' name in the U.S. today, with 58,547 recorded since 1951.
Declan has 58,547 recorded births among boys since 1951, per the U.S. Social Security Administration, ranked #139 as of the latest data, more common than 99.0% of boys, busiest in the 2010s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1951 to 2025.
- #456 of 45,481 all-time among boys
- #139 of 13,930 2025 SSA year
- 58,547 born since 1951
- 2010s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Declan ranks #456 of 45,481 boys' names by all-time recorded births (highest first) and #139 of 13,930 among boys' names in 2025. 58,547 born since 1951, peaking in the 2010s.
- #456 of 45,481
- all-time among boys
- #139 of 13,930
- 2025 SSA year
- 58,547
- born since 1951
- 2010s
- peak decade
Declan's 58,547 recorded births place it above 98.99% of the 45,481 boys names in the full SSA archive.
51 jurisdictions carry state-level records, led by California.
How Declan compares
58,547 Top 4% higher than 96% of 13,930 names currently given to boys
Based on all-time total births among currently-ranked boys names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Declan's all-time total is 159x the median boys name, and Liam still leads by a wide margin.
| Metric | Declan | Median boys name (Takari) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 58,547 | 369 | 358,536 |
| Peak-year births | 3,971 | 34 | 22,252 |
Declan's usage pattern, beyond the headline number
Splitting Declan's full recorded timeline at 1992, 99% of its total births fall in the more recent half of the record versus 1% in the earlier half -- usage has skewed toward the present, not a one-decade spike. Its quietest year on record was 1951, with just 5 recorded births -- worth weighing against the 2019 peak of 3,971 to see the full range of the name's swing in popularity.
Declan popularity over time - boys
Annual U.S. births registered with the Social Security Administration · 1951–2025
- Peak year (2019)
- 3,971
- Annual births at peak, across 75 years of records
Declan popularity over time - girls
403 total births recorded since 2001 (Declan as girls' name)
Declan by decade
2010s is the heaviest window (31,107 births, 53% of the file).
2010s was Declan's strongest decade.
31,107 babies received the name during that ten-year window, about 53% of all-time use.
Declan births by decade
Total births in each ten-year window
- 1950s 27
1950s
27 births
- 1960s 70
1960s
70 births
- 1970s 53
1970s
53 births
- 1980s 145
1980s
145 births
- 1990s 1,135
1990s
1,135 births
- 2000s 7,268
2000s
7,268 births
- 2010s
2010s
31,107 births
- 2020s
2020s
18,742 births
What this shows Peak: 2010s at 31,107 births (53% of all-time use).
How Declan compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 boys names closest to Declan's total volume
Declan by state
Where Declan concentrates geographically, total births since 1951
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 4,641 | 7.9% |
| #2 | New York | | 3,805 | 6.5% |
| #3 | Pennsylvania | | 3,656 | 6.2% |
| #4 | Texas | | 2,988 | 5.1% |
| #5 | Illinois | | 2,986 | 5.1% |
| #6 | Massachusetts | | 2,506 | 4.3% |
| #7 | Florida | | 2,456 | 4.2% |
| #8 | Ohio | | 2,376 | 4.1% |
4,641 of 58,547 births nationwide. Compared to a flat distribution across 51 reporting states.
Declan appears in 51 states. Explore state details →
Frequently Asked Questions
How popular is the name Declan? ▼
Where does Declan sit in the SSA name archive? ▼
When was Declan most popular? ▼
Where is Declan most popular? ▼
How long has the name Declan been used? ▼
What names are similar to Declan? ▼
What to do with Declan's data
- Declan's usage has stayed within range of its 2010s decade-level peak (31,107 total births) through the 2020s (18,742) -- a comparatively stable name, not a fading trend.
- California records the most Declans (4,641 births) -- see the full state breakdown if geography matters to your decision. California names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Declan
Nearby Names Like Declan
Names with a similar sound, spelling, or feel to Declan
Compare Declan side by side: Declan vs Decker Declan vs Decarlos Declan vs Decarlo
Related Names
Names with a similar popularity rank to Declan
Nationwide names with similar peak year or record span
Two nationwide peer axes for Declan: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~2019)
Similar record span (~74 yrs)
Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.
Data Sources
Data as of August 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1951–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Declan draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.