The most common names of people born in Colorado

Social Security has recorded about 4 million births in Colorado since 1910 under names it lists. By our estimate, about 3.2 million of those people are alive today, and their average age is 36. The most common names among them are Jennifer for women and Michael for men.

These are the names of people born in Colorado, wherever they live now. Social Security records state of birth, not where people live, so people who moved to Colorado from elsewhere aren't counted here, and people born here who moved away are.

Women and girls born in Colorado

Most common names of living women born in Colorado
#	Name	Alive today	Average age
1	Jennifer	19,000	45
2	Mary	15,000	63
3	Jessica	15,000	38
4	Elizabeth	14,000	39
5	Sarah	13,000	38
6	Emily	11,000	28
7	Michelle	11,000	48
8	Ashley	11,000	32
9	Amanda	10,000	39
10	Linda	10,000	70
11	Stephanie	9,200	43
12	Patricia	9,000	67
13	Lisa	9,000	54
14	Emma	8,800	18
15	Rebecca	8,700	47
16	Olivia	8,600	16
17	Nicole	8,600	39
18	Samantha	8,500	29
19	Kimberly	8,400	46
20	Amy	8,300	45
21	Melissa	8,300	44
22	Karen	8,100	63
23	Susan	8,000	65
24	Hannah	7,800	25
25	Laura	7,600	50
26	Rachel	7,400	37
27	Heather	7,400	45
28	Katherine	7,300	41
29	Megan	7,000	35
30	Barbara	7,000	71

Men and boys born in Colorado

Most common names of living men born in Colorado
#	Name	Alive today	Average age
1	Michael	42,000	47
2	David	32,000	50
3	James	29,000	49
4	John	29,000	52
5	Robert	27,000	55
6	Christopher	24,000	40
7	Daniel	22,000	40
8	William	22,000	44
9	Matthew	21,000	37
10	Joseph	19,000	40
11	Joshua	19,000	33
12	Andrew	17,000	35
13	Richard	16,000	59
14	Ryan	15,000	34
15	Anthony	15,000	38
16	Thomas	15,000	47
17	Jacob	15,000	27
18	Mark	13,000	55
19	Jason	13,000	42
20	Benjamin	13,000	28
21	Steven	12,000	52
22	Brian	12,000	47
23	Nicholas	12,000	33
24	Charles	12,000	48
25	Kevin	12,000	44
26	Alexander	12,000	24
27	Justin	11,000	37
28	Tyler	11,000	30
29	Eric	11,000	43
30	Brandon	11,000	33

Average ages here are for people with the name born in Colorado, not the national average.

Names more common in Colorado than nationally

Among living people born in Colorado, these names make up a bigger share than they do nationwide. Aspen is 5.5× as common among people born here as among all Americans.

Names more common among people born in Colorado than nationally
#	Name	Vs. national	Alive today	Average age
1	Aspen	5.5×	1,800	16
2	Dillon	2.4×	1,800	27
3	Rowan	2.3×	2,000	9
4	Quinn	2.3×	2,400	14
5	Angelo	2.3×	1,600	28
6	Ezekiel	2.2×	2,100	11
7	Tanner	2.2×	2,500	25
8	Declan	2.1×	1,400	10
9	Emerson	2.1×	1,500	10
10	Cooper	2.0×	3,000	13
11	Dominic	2.0×	4,200	23
12	Elias	2.0×	2,900	13
13	Isla	2.0×	1,300	7
14	Genevieve	1.9×	1,300	25
15	Miles	1.9×	2,600	14

The newest Colorado babies

The most popular names for babies born in Colorado in 2025, with the average age of everyone in the US who has each name.

Girls

Top girl names of 2025 in Colorado
#	Name	Born 2025	Avg. age, US
1	Charlotte	293	30
2	Olivia	256	18
3	Sophia	242	16
4	Emma	227	20
5	Mia	217	15
6	Evelyn	214	34
7	Amelia	187	16
8	Sofia	177	14
9	Isabella	172	15
10	Eleanor	161	30

Boys

Top boy names of 2025 in Colorado
#	Name	Born 2025	Avg. age, US
1	Liam	397	11
2	Theodore	373	29
3	Noah	348	16
4	Oliver	310	13
5	James	256	54
6	Henry	252	34
7	Mateo	244	8
8	William	228	51
9	Cooper	196	13
10	Elias	193	15

About these numbers

Social Security publishes names by state of birth for births from 1910 on, listing a name only when at least five babies of the same sex got it in the state that year, so rare names are missing. We estimate how many of those babies are alive with SSA's national cohort life tables (there are no state tables), and count a name as a girls' or boys' name by which sex has more living people born here. “Vs. national” compares the name's share of living people born in Colorado with its share of all living Americans in the national records. How we calculate this