What is the most popular baby name in Delaware?

Even on a thin SSA book, Delaware's cumulative #1 boy is John (15,457 births) and #1 girl is Mary (8,441 births) since 1910.

How have baby names changed in Delaware over the decades?

Delaware is TREND-LED today: latest-year leaders already differ from the all-time book on both sexes. Decade #1s moved from John/Mary (1910s) to Liam/Charlotte (2020s).

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 (QUIET volume stamp · #48 of 51 jurisdictions). The SSA records all names with 5 or more occurrences per state per year, from 1910 through 2025.

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.

Compiled byNameAlmanac, Independent data publisher

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

Where Delaware sits by recorded name volume

Delaware: 683,868 SSA name registrations (QUIET · rank 48/51). Inventory signal only, orthogonal to the top-50 lists below.

Delaware vs all states by SSA name registrations

Where this state's disclosed SSA name-state registration total sits among every tracked jurisdiction

683,868 48th of 51 higher than 3 of 51 states

Jurisdictions, banded by SSA name-registration count

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source Social Security Administration state baby-name files · 2026-08-11

Delaware naming snapshot

According to SSA state files through 2025, Mary is #1 of 8,441 cumulative SSA births in Delaware ≠ Mia #1 of 224 2025 girl names at all-time rank #51; John is #1 of 15,457 cumulative SSA births in Delaware ≠ Noah #1 of 244 2025 boy names at all-time rank #51.

Mia
2025 girls #1, all-time #51: Mary
all-time girls #1, 2025 #51: Noah
2025 boys #1, all-time #51: John
all-time boys #1, 2025 #9

Both sexes in Delaware already split latest-year vs all-time leaders, cumulative totals since 1910 and 2025 use different denominators.

Data updated Aug 2026

Both sexes trend-led

What a thin registry book shows for Delaware

Delaware sits in the lightest third of SSA name-state registration totals (683,868 · QUIET · #48/51). Cumulative top-50 leaders are John (15,457 boy births) and Mary (8,441 girl births) across 347,038 top-50 registrations since 1910. Both sexes are TREND-LED: the latest 2025 #1 differs from the all-time cumulative #1 on each side. Boy top-50 share 226,390 vs 120,648 for girls.

In Delaware, the latest SSA year #1 differs from the all-time cumulative #1 for both boys and girls, a dual trend split against the long book.

Coverage notes on a thin state file

Decade-by-decade data for Delaware extends back to 1910. 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.

SSA state files include any name appearing five or more times in a given state-year; lower-frequency names are suppressed for privacy. Figures are comparable across all 50 states and DC. Alternate spellings (Sophia vs Sofia) are separate names; middle names are not tracked. This page is for informational and research purposes.

Mia

43
Sophia

41
Isabella

35
Charlotte

34
Olivia

32
Emma

32
Amelia

29
Ailany

28
Ava

27
Layla

26

What this shows Mia leads 2025 girls in Delaware; Mary remains the all-time cumulative #1 at rank #51 in 2025.

Noah

63
Liam

59
Oliver

39
James

37
Lucas

36
Theodore

35
Elijah

34
Benjamin

34
John

32
Cooper

30

What this shows Noah leads 2025 boys in Delaware; John remains the all-time cumulative #1 at rank #51 in 2025.

Mary

8,441
Elizabeth

5,223
Jennifer

4,073
Patricia

4,024
Barbara

3,737
Margaret

3,620
Linda

3,098
Susan

3,074
Sarah

3,061
Lisa

2,948

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

John

15,457
William

13,977
James

13,707
Robert

13,088
Michael

12,954
David

10,128
Joseph

8,573
Charles

7,136
Richard

6,819
Thomas

6,791

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

Read with Delaware

Nearest ABS peers for a thin-registry state (Delaware · QUIET · TREND-LED).

QUIET TREND-LED

Vermont · QUIET

576,192 SSA registrations (near-scale with Delaware; ABS Δ 107,676). Leader lane may differ from Delaware's TREND-LED.

Alaska · QUIET

465,495 SSA registrations (1.5× smaller than Delaware; ABS Δ 218,373). Leader lane may differ from Delaware's TREND-LED.

Wyoming · QUIET

451,965 SSA registrations (1.5× smaller than Delaware; ABS Δ 231,903). Leader lane may differ from Delaware's TREND-LED.

Montana · QUIET

1,019,300 SSA registrations (1.5× Delaware's registry; ABS Δ 335,432). Leader lane may differ from Delaware's TREND-LED.

New Mexico (volume-lane contrast)

Near Delaware on SSA registration volume yet stamps SPARSE vs QUIET.

Why names rise and fall

Delaware stamps QUIET · TREND-LED - read the matching SSA methodology before quoting state leaders.

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 - thin-registry states: how small SSA state files are compared without inventing suppressed names.

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.