What is the most popular baby name in Colorado?

The most popular boy name in Colorado is Michael with 50,018 births since 1910. The most popular girl name is Mary with 31,897 births. These rankings are based on cumulative SSA birth registration data.

How have baby names changed in Colorado over the decades?

Colorado 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/Olivia (2020s).

How many babies are named in Colorado?

Our data covers 1,407,115 name registrations in Colorado for the top 50 boys and top 50 girls names (SPARSE volume stamp · #29 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 Colorado

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

Compiled byNameAlmanac, Independent data publisher

Michael
#1 boy name: Mary
#1 girl name: 1,407,115
Births recorded: 1910–2025
Years covered

Colorado's all-time #1 names are Michael for boys and Mary for girls, based on 1,407,115 SSA birth registrations since 1910.

According to the U.S. Social Security Administration, Colorado has recorded 1,407,115 births across its top 50 boy and top 50 girl names since 1910. Michael leads all boys with 50,018 births, while Mary tops the girls with 31,897. This profile covers decade-by-decade leaders and the full top-50 rankings for both sexes.

Michael #1 boy name
Mary #1 girl name
1,407,115 births recorded

Where Colorado sits by recorded name volume

Colorado: 4,011,208 SSA name registrations (SPARSE · rank 29/51). Inventory signal only, orthogonal to the top-50 lists below.

Colorado vs all states by SSA name registrations

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

4,011,208 29th of 51 higher than 22 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

Colorado naming snapshot

According to SSA state files through 2025, Mary is #1 of 31,897 cumulative SSA births in Colorado ≠ Charlotte #1 of 1,051 2025 girl names at all-time rank #48; Michael is #1 of 50,018 cumulative SSA births in Colorado ≠ Liam #1 of 965 2025 boy names at all-time rank #51.

Charlotte
2025 girls #1, all-time #48: Mary
all-time girls #1, 2025 #51: Liam
2025 boys #1, all-time #51: Michael
all-time boys #1, 2025 #45

Both sexes in Colorado 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

Where Colorado's latest-year leaders split from the all-time book

Colorado stamps SPARSE on disclosed SSA name-state volume (4,011,208 · #29/51). Cumulative top-50 leaders are Michael (50,018 boy births) and Mary (31,897 girl births) across 1,407,115 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 900,893 vs 506,222 for girls.

In Colorado, 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.

Decade shifts, SSA coverage, and comparability

Decade-by-decade data for Colorado 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 Olivia 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.

Charlotte

293
Olivia

256
Sophia

242
Emma

227
Mia

217
Evelyn

214
Amelia

187
Sofia

177
Isabella

172
Eleanor

161

What this shows Charlotte leads 2025 girls in Colorado; Mary remains the all-time cumulative #1 at rank #48 in 2025.

Liam

397
Theodore

373
Noah

348
Oliver

310
James

256
Henry

252
Mateo

244
William

228
Cooper

196
Elias

193

What this shows Liam leads 2025 boys in Colorado; Michael remains the all-time cumulative #1 at rank #51 in 2025.

Mary

31,897
Jennifer

19,813
Elizabeth

17,378
Jessica

14,977
Sarah

14,528
Patricia

14,205
Linda

13,768
Barbara

12,989
Emily

12,026
Michelle

11,981

What this shows Mary leads Colorado girls with 31,897 recorded births.

Michael

50,018
Robert

48,252
John

47,305
James

44,156
David

42,194
William

36,132
Richard

27,181
Daniel

26,361
Christopher

26,091
Joseph

24,559

What this shows Michael leads Colorado boys with 50,018 recorded births.

Decade-by-Decade Leaders

The #1 boy and girl name in Colorado 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	2,888	Mary	3,509
1920s	Robert	5,617	Mary	5,640
1930s	Robert	5,483	Mary	4,923
1940s	Robert	6,664	Mary	5,305
1950s	Michael	8,593	Linda	5,602
1960s	Michael	8,565	Lisa	4,238
1970s	Michael	8,261	Jennifer	7,592
1980s	Michael	8,997	Jessica	6,714
1990s	Michael	5,965	Jessica	4,108
2000s	Jacob	4,211	Emily	3,052
2010s	Liam	3,148	Olivia	3,142
2020s	Liam	2,178	Olivia	1,748

Boy Top 50 Boy Names

#	Name	Total Births
1	Michael	50,018
2	Robert	48,252
3	John	47,305
4	James	44,156
5	David	42,194
6	William	36,132
7	Richard	27,181
8	Daniel	26,361
9	Christopher	26,091
10	Joseph	24,559
11	Matthew	22,948
12	Charles	21,304
13	Thomas	20,704
14	Joshua	19,654
15	Andrew	18,245
16	Anthony	17,350
17	Mark	16,495
18	Ryan	16,147
19	Jacob	15,461
20	Steven	15,349
21	Donald	15,254
22	Paul	14,267
23	Jason	13,999
24	Brian	13,984
25	Benjamin	13,809
26	Kenneth	13,278
27	Kevin	13,161
28	Nicholas	13,019
29	Jack	12,415
30	Timothy	12,203
31	Alexander	12,084
32	Eric	11,927
33	Justin	11,684
34	George	11,638
35	Samuel	11,350
36	Tyler	11,211
37	Ronald	11,210
38	Brandon	11,058
39	Scott	10,957
40	Jeffrey	10,643
41	Gary	10,520
42	Jonathan	10,326
43	Edward	10,023
44	Zachary	9,889
45	Aaron	9,884
46	Nathan	9,374
47	Patrick	9,174
48	Larry	8,954
49	Stephen	8,898
50	Adam	8,794

Girl Top 50 Girl Names

#	Name	Total Births
1	Mary	31,897
2	Jennifer	19,813
3	Elizabeth	17,378
4	Jessica	14,977
5	Sarah	14,528
6	Patricia	14,205
7	Linda	13,768
8	Barbara	12,989
9	Emily	12,026
10	Michelle	11,981
11	Ashley	11,364
12	Margaret	10,972
13	Amanda	10,656
14	Susan	10,185
15	Karen	10,143
16	Betty	10,052
17	Lisa	9,915
18	Emma	9,871
19	Stephanie	9,793
20	Rebecca	9,641
21	Dorothy	9,169
22	Laura	9,052
23	Kimberly	9,006
24	Amy	8,971
25	Nicole	8,885
26	Melissa	8,756
27	Olivia	8,756
28	Katherine	8,738
29	Anna	8,681
30	Samantha	8,631
31	Sandra	8,574
32	Nancy	8,282
33	Carol	8,190
34	Helen	8,143
35	Donna	8,080
36	Rachel	8,029
37	Hannah	7,958
38	Sharon	7,932
39	Heather	7,797
40	Cynthia	7,684
41	Evelyn	7,501
42	Shirley	7,451
43	Megan	7,240
44	Kathleen	7,112
45	Julie	7,024
46	Ruth	6,950
47	Andrea	6,925
48	Charlotte	6,924
49	Victoria	6,827
50	Sophia	6,800

Read with Colorado

Nearest ABS(SSA name-registration volume) peers for Colorado (SPARSE · TREND-LED).

SPARSE TREND-LED

Arizona · SPARSE

4,092,941 SSA registrations (near-scale with Colorado; ABS Δ 81,733). Leader lane may differ from Colorado's TREND-LED.

Mississippi · SPARSE

4,242,975 SSA registrations (near-scale with Colorado; ABS Δ 231,767). Leader lane may differ from Colorado's TREND-LED.

Connecticut · SPARSE

3,668,373 SSA registrations (near-scale with Colorado; ABS Δ 342,835). Leader lane may differ from Colorado's TREND-LED.

Arkansas · SPARSE

3,623,589 SSA registrations (near-scale with Colorado; ABS Δ 387,619). Leader lane may differ from Colorado's TREND-LED.

Oklahoma (volume-lane contrast)

Near Colorado on SSA registration volume yet stamps DENSE vs SPARSE.

Why names rise and fall

Colorado stamps SPARSE · 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 - 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.