State name profile

Most Popular Baby Names in Delaware

The boys' and girls' names most often given in Delaware, ranked by total recorded births in Social Security Administration state data, 1910–2025.

John
#1 boy name
Mary
#1 girl name
347,038
Births recorded
1910–2025
Years covered

Delaware's all-time #1 names are John for boys and Mary for girls, based on 347,038 SSA birth registrations since 1910.

According to the U.S. Social Security Administration, Delaware has recorded 347,038 births across its top 50 boy and top 50 girl names since 1910. John leads all boys with 15,457 births, while Mary tops the girls with 8,441. This profile covers decade-by-decade leaders and the full top-50 rankings for both sexes.

  • John #1 boy name
  • Mary #1 girl name
  • 347,038 births recorded

Data updated Jun 2026

What the Data Says About Baby Names in Delaware

The Social Security Administration has registered 347,038 births across the top 50 boy and top 50 girl names in Delaware from 1910 through 2025, the portion of state-level naming data released publicly. Among boys, John leads with 15,457 cumulative births, while Mary tops the girl rankings with 8,441 births. The top 50 boy names collectively account for 226,390 births versus 120,648 for the top 50 girl names, reflecting the typical U.S. pattern in which boy-name distributions are more concentrated among fewer high-frequency entries. SSA state files include any name appearing five or more times in a given state-year, so lower-frequency names are suppressed for privacy and are not counted in these totals.

Decade-by-decade data for Delaware extends back to 1910, making it possible to track how Delaware parents' naming choices have shifted across more than a century of birth records. In the 1910s, the #1 boy name was John and the #1 girl name was Mary. By the 2020s, the top names had shifted to Liam for boys and Charlotte for girls. Across 12 decades with complete data, the turnover in #1 rankings reflects broader cultural and generational forces, baby-boom naming conformity, the 1970s individualism shift, and the current resurgence of short, classic names.

Because Delaware reports under the same SSA framework as every other jurisdiction, these figures are directly comparable across all 50 states and the District of Columbia. The cumulative totals reflect every recorded birth registration rather than a survey sample, though names with four or fewer annual occurrences are excluded per SSA privacy policy. This means the true naming distribution in Delaware is slightly broader than what appears here, particularly for rare and emerging names. The dataset does not distinguish between alternate spellings (for example, Sophia and Sofia are tracked as separate names) or middle names, and reflects first names as they appear on Social Security card applications only. This page is for informational and research purposes.

Top 10 girls' names in Delaware

Cumulative births recorded in state SSA files (1910–2025)

births

What this shows Mary leads Delaware girls with 8,441 recorded births.

Source U.S. Social Security Administration As of Delaware · 1910–2025

Top 10 boys' names in Delaware

Cumulative births recorded in state SSA files (1910–2025)

births

What this shows John leads Delaware boys with 15,457 recorded births.

Source U.S. Social Security Administration As of Delaware · 1910–2025

Decade-by-Decade Leaders

The #1 boy and girl name in Delaware for each decade

How we calculated this

For each decade, we sum every year's SSA state-level birth count per name, then take the single name with the highest ten-year total for each sex. A name can lead a decade with a strong single peak year or with steady, moderate demand across all ten years, the total treats both the same way.

Boy Top 50 Boy Names

# Name Total Births
1 John 15,457
2 William 13,977
3 James 13,707
4 Robert 13,088
5 Michael 12,954
6 David 10,128
7 Joseph 8,573
8 Charles 7,136
9 Richard 6,819
10 Thomas 6,791
11 Christopher 6,348
12 Matthew 5,242
13 Daniel 4,996
14 Anthony 4,460
15 George 4,250
16 Andrew 4,219
17 Mark 4,155
18 Edward 3,823
19 Brian 3,794
20 Paul 3,752
21 Kevin 3,748
22 Donald 3,500
23 Joshua 3,357
24 Steven 3,197
25 Jeffrey 3,180
26 Ryan 3,139
27 Stephen 2,950
28 Kenneth 2,851
29 Nicholas 2,739
30 Ronald 2,698
31 Timothy 2,668
32 Eric 2,628
33 Jason 2,618
34 Samuel 2,348
35 Benjamin 2,307
36 Jonathan 2,303
37 Jacob 2,179
38 Brandon 2,141
39 Alexander 2,094
40 Justin 2,042
41 Gregory 1,910
42 Tyler 1,890
43 Francis 1,862
44 Zachary 1,849
45 Patrick 1,801
46 Frank 1,784
47 Scott 1,772
48 Gary 1,770
49 Raymond 1,710
50 Kyle 1,686

Girl Top 50 Girl Names

# Name Total Births
1 Mary 8,441
2 Elizabeth 5,223
3 Jennifer 4,073
4 Patricia 4,024
5 Barbara 3,737
6 Margaret 3,620
7 Linda 3,098
8 Susan 3,074
9 Sarah 3,061
10 Lisa 2,948
11 Karen 2,820
12 Jessica 2,811
13 Deborah 2,652
14 Kimberly 2,574
15 Nancy 2,440
16 Dorothy 2,439
17 Ashley 2,408
18 Emily 2,407
19 Donna 2,252
20 Helen 2,202
21 Catherine 2,190
22 Amanda 2,175
23 Michelle 2,133
24 Anna 2,116
25 Stephanie 2,112
26 Kathleen 2,074
27 Sandra 2,039
28 Sharon 2,033
29 Rebecca 1,969
30 Carol 1,949
31 Laura 1,882
32 Ruth 1,873
33 Melissa 1,843
34 Lauren 1,831
35 Betty 1,807
36 Amy 1,807
37 Christine 1,782
38 Samantha 1,743
39 Emma 1,721
40 Heather 1,677
41 Nicole 1,663
42 Katherine 1,663
43 Kelly 1,640
44 Cynthia 1,631
45 Olivia 1,571
46 Diane 1,567
47 Victoria 1,523
48 Megan 1,480
49 Angela 1,435
50 Marie 1,415

Frequently Asked Questions

What is the most popular baby name in Delaware?
The most popular boy name in Delaware is John with 15,457 births since 1910. The most popular girl name is Mary with 8,441 births. These rankings are based on cumulative SSA birth registration data.
How have baby names changed in Delaware over the decades?
Delaware's most popular names have evolved significantly. In the 1910s, the top names were John and Mary. By the 2020s, they shifted to Liam and Charlotte. See the decade-by-decade breakdown above.
How many babies are named in Delaware?
Our data covers 347,038 name registrations in Delaware for the top 50 boys and top 50 girls names. The SSA records all names with 5 or more occurrences per state per year, from 1910 through 2025.

What to do with Delaware's data

  • John (15,457 births) and Mary (8,441 births) are Delaware's all-time #1s -- see each name's national profile for how it compares outside Delaware. John's profile
  • In the 1910s, Delaware's top names were John and Mary; by the 2020s the leaders had shifted to Liam and Charlotte -- the decade breakdown above shows every step between.
  • Curious how Delaware compares to another state? Browse the full state directory. All states

Rankings reflect SSA state-level files (1910-2025); names with fewer than 5 occurrences per state per year are suppressed for privacy and excluded from these totals.

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Nearby State Rankings

Compare baby names in Delaware with other state-level SSA rankings

Compare Delaware's #1 names side by side → or pick any two names →

Source: U.S. Social Security Administration, Baby Names, State-Level Files, 1910–2025 (ssa.gov).

Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data (ssa.gov/oact/babynames).

Data sourced from the U.S. Social Security Administration. See our methodology for details.

According to the Social Security Administration, as of June 2026 this profile draws directly on the agency's state-level public-use files, which document 6,696,687 state-level records across all 51 reporting jurisdictions spanning 1910-2025.

Cite this page

NameAlmanac Editorial. "Most Popular Baby Names in Delaware - #1 John & Mary | SSA Data." NameAlmanac. Accessed via https://namealmanac.com/state/DE. Licensed CC BY-SA 4.0.

Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This Delaware profile draws directly on SSA 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.