State share divided by national share. Shares use sums of published counts. Computed only when the state count is at least 20 and the national count is published. A missing national count is not zero. An index of 2 means the name’s share of published Colorado records is twice its share of published US records. State counts below five are absent. Download this state list (CSV)

Female records

23,327 published female records in Colorado in 2025.

First 100 rows in the 2025 Colorado female file.
Rank	Name	Count
1	Charlotte	293
2	Olivia	256
3	Sophia	242
4	Emma	227
5	Mia	217
6	Evelyn	214
7	Amelia	187
8	Sofia	177
9	Isabella	172
10	Eleanor	161
11	Nora	159
12	Harper	150
13	Elizabeth	148
14	Lily	146
15	Ailany	145
16	Violet	145
17	Lucy	144
18	Hazel	142
19	Isla	141
20	Eliana	131
21	Penelope	131
22	Ava	128
23	Zoe	125
24	Scarlett	124
25	Aria	119
26	Emilia	112
27	Chloe	109
28	Camila	107
29	Avery	105
30	Ella	104
31	Juniper	103
32	Luna	103
33	Riley	102
34	Grace	100
35	Maeve	99
36	Abigail	97
37	Ellie	97
38	Emily	97
39	Josephine	97
40	Eloise	95
41	Layla	95
42	Gianna	94
43	Lainey	94
44	Ivy	92
45	Sophie	90
46	Adeline	89
47	Elena	88
48	Mila	86
49	Quinn	86
50	Margot	85
51	Maya	84
52	Willow	84
53	Hannah	82
54	Iris	82
55	Naomi	81
56	Stella	81
57	Lillian	80
58	Sloane	79
59	Madison	78
60	Ruby	78
61	Lyla	77
62	Claire	74
63	Valentina	74
64	Daisy	71
65	Ayla	70
66	Nova	70
67	Sadie	70
68	Millie	69
69	Genesis	68
70	Victoria	68
71	Eden	67
72	Alice	65
73	Aurora	65
74	Clara	65
75	June	64
76	Margaret	64
77	Kennedy	63
78	Lucia	63
79	Amara	61
80	Everly	61
81	Addison	60
82	Maria	60
83	Zoey	60
84	Cecilia	59
85	Delilah	59
86	Leilani	58
87	Liliana	58
88	Madeline	57
89	Cora	56
90	Ember	56
91	Lydia	56
92	Evangeline	55
93	Allison	54
94	Autumn	54
95	Elsie	54
96	Emery	53
97	Phoebe	53
98	Georgia	52
99	Ximena	52
100	Charlie	51

Male records

26,851 published male records in Colorado in 2025.

First 100 rows in the 2025 Colorado male file.
Rank	Name	Count
1	Liam	397
2	Theodore	373
3	Noah	348
4	Oliver	310
5	James	256
6	Henry	252
7	Mateo	244
8	William	228
9	Cooper	196
10	Elias	193
11	Elijah	191
12	Luca	190
13	Ezra	187
14	Owen	186
15	Jack	185
16	Benjamin	184
17	Lucas	177
18	Levi	176
19	Leo	162
20	Hudson	161
21	Miles	161
22	Rowan	160
23	Sebastian	160
24	Bennett	156
25	Jackson	156
26	Wesley	150
27	Santiago	149
28	Daniel	144
29	Julian	144
30	Wyatt	144
31	Asher	143
32	Samuel	137
33	Luke	134
34	Beau	132
35	Alexander	126
36	Gabriel	125
37	Thiago	125
38	Ethan	124
39	Weston	123
40	Charles	118
41	Everett	118
42	Carter	117
43	Ezekiel	117
44	Michael	116
45	Nolan	116
46	Brooks	114
47	Logan	113
48	David	112
49	John	112
50	Joseph	112
51	Atlas	108
52	Roman	106
53	Thomas	106
54	Milo	103
55	Adriel	101
56	Dylan	100
57	Grayson	100
58	Archer	98
59	Isaac	98
60	Mason	98
61	Caleb	94
62	Emiliano	92
63	Matthew	92
64	Aiden	91
65	Angel	89
66	Arlo	89
67	Calvin	89
68	Walker	88
69	Adrian	87
70	Anthony	87
71	August	87
72	Callum	87
73	Ian	87
74	Axel	86
75	Lincoln	85
76	Luka	85
77	Silas	85
78	Eithan	84
79	Josiah	83
80	Kai	82
81	Graham	81
82	Jacob	80
83	Maverick	80
84	Theo	79
85	Arthur	78
86	Enzo	77
87	Isaiah	77
88	Joshua	76
89	Micah	76
90	Nathan	76
91	Gael	75
92	Robert	74
93	Waylon	73
94	Andrew	71
95	Elian	71
96	Jose	71
97	Cameron	70
98	Damian	69
99	Christopher	68
100	Emmett	67

Unusually common in Colorado

Index at least 2, state count at least 20, limited to 20 names.

State share divided by national share.
Name	Category	State count	State rank	Index
Louise	female	29	218	3.45×
Willa	female	36	165	3.34×
Daleyza	female	25	259	3.06×
Adelaide	female	45	119	2.92×
Renata	female	26	249	2.82×
Westley	male	20	327	2.81×
Avianna	female	20	302	2.81×
Marlowe	female	23	274	2.76×
Ivanna	female	21	291	2.73×
Juniper	female	103	31	2.71×
Sloane	female	79	58	2.62×
Truett	male	23	292	2.53×
Otto	male	49	148	2.51×
Colette	female	35	167	2.51×
Quinn	male	26	259	2.49×
Soren	male	26	260	2.49×
Aurelia	female	38	152	2.48×
Viviana	female	33	184	2.45×
Augustine	male	21	308	2.43×
Lyra	female	25	261	2.42×