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.
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Top 10 girls' names in Delaware
Cumulative births recorded in state SSA files (1910–2025)
- Mary
Mary
8,441 births
- Elizabeth
Elizabeth
5,223 births
- Jennifer
Jennifer
4,073 births
- Patricia
Patricia
4,024 births
- Barbara
Barbara
3,737 births
- Margaret
Margaret
3,620 births
- Linda 3,098
Linda
3,098 births
- Susan 3,074
Susan
3,074 births
- Sarah 3,061
Sarah
3,061 births
- Lisa 2,948
Lisa
2,948 births
What this shows Mary leads Delaware girls with 8,441 recorded births.
Top 10 boys' names in Delaware
Cumulative births recorded in state SSA files (1910–2025)
- John
John
15,457 births
- William
William
13,977 births
- James
James
13,707 births
- Robert
Robert
13,088 births
- Michael
Michael
12,954 births
- David
David
10,128 births
- Joseph
Joseph
8,573 births
- Charles
Charles
7,136 births
- Richard
Richard
6,819 births
- Thomas
Thomas
6,791 births
What this shows John leads Delaware boys with 15,457 recorded births.
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.
| Decade | Top Boy | Births | Top Girl | Births |
|---|---|---|---|---|
| 1910s | John | 985 | Mary | 1,141 |
| 1920s | William | 1,499 | Mary | 1,316 |
| 1930s | William | 1,284 | Mary | 952 |
| 1940s | John | 1,958 | Mary | 1,299 |
| 1950s | John | 2,655 | Mary | 1,588 |
| 1960s | Michael | 2,494 | Lisa | 1,568 |
| 1970s | Michael | 2,152 | Jennifer | 1,724 |
| 1980s | Michael | 2,316 | Jessica | 1,273 |
| 1990s | Michael | 1,590 | Jessica | 902 |
| 2000s | Michael | 915 | Madison | 662 |
| 2010s | Liam | 559 | Ava | 584 |
| 2020s | Liam | 361 | Charlotte | 275 |
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? ▼
How have baby names changed in Delaware over the decades? ▼
How many babies are named in Delaware? ▼
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).
Read our methodology - how this data is sourced, computed, and verified.
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.