Larimer County Demographics

A map of Larimer County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	291,045	282,581	79.2%	78.7%
Hispanic	47,521	44,662	12.9%	12.4%
Multiracial	13,897	16,431	3.8%	4.6%
Asian	8,054	8,365	2.2%	2.3%
Black	3,616	3,448	1.0%	1.0%
Native American/Other	3,235	3,579	0.9%	1.0%

Larimer County, Colorado has an estimated population of 367,368, a slight increase from the 359,066 recorded in the 2020 Census. The population is 79.2% White, 12.9% Hispanic, 3.8% Multiracial, 2.2% Asian, 1.0% Black, and 0.9% Native American/Other. This demographic dot map shows the population of Larimer County, with one dot drawn for each person counted by the Census, color-coded by race.

Larimer has become slightly less racially diverse since the 2020 Census. It is considerably less diverse than Colorado overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Larimer County, that probability was 36.2% in 2020 and 35.4% in the most recent ACS estimates.

Larimer County is ranked the 7th most populous county in Colorado, out of 64 counties. Larimer County was ranked the 6th most populous county in the 2020 Census.

Larimer County's White Population

291,045 residents of Larimer County, or 79.2% of the population, identify as White. The share of White residents in Larimer County is considerably higher than in Colorado overall, where 64.8% of the population is White. Larimer County ranks 26th statewide in terms of White residents as a share of the population, out of 64 counties.

Since the 2020 Census, Larimer County's White population has grown by an estimated 3.0%. White residents' share of Larimer County's population has increased from 78.7% to 79.2%.

Larimer County is more White than neighboring Boulder County (74.5% White), Broomfield County (72.4% White), and Grand County (76.8% White). Larimer County is less White than neighboring Gilpin County (84.8% White), and Jackson County (86.6% White).

Larimer County's Black Population

3,616 residents of Larimer County, or 1.0% of the population, identify as Black. The share of Black residents in Larimer County is slightly lower than in Colorado overall, where 3.8% of the population is Black. Larimer County ranks 20th statewide in terms of Black residents as a share of the population, out of 64 counties.

Since the 2020 Census, Larimer County's Black population has grown by an estimated 4.9%. Black residents' share of Larimer County's population has remained roughly unchanged at 1.0%.

Larimer County is more Black than neighboring Boulder County (0.8% Black), and Grand County (0.2% Black). Larimer County is less Black than neighboring Gilpin County (2.6% Black), Broomfield County (1.1% Black), and Jackson County (1.3% Black).

Larimer County's Asian Population

8,054 residents of Larimer County, or 2.2% of the population, identify as Asian. The share of Asian residents in Larimer County is comparable to the share in Colorado overall, where 3.2% of the population is Asian. Larimer County ranks 9th statewide in terms of Asian residents as a share of the population, out of 64 counties.

Since the 2020 Census, Larimer County's Asian population has declined by an estimated 3.7%. Asian residents' share of Larimer County's population has remained roughly unchanged at 2.2%.

Larimer County is more Asian than neighboring Gilpin County (1.1% Asian), Grand County (0.7% Asian), and Jackson County (0% Asian). Larimer County is less Asian than neighboring Boulder County (4.7% Asian), and Broomfield County (6.9% Asian).

Larimer County's Hispanic Population

47,521 residents of Larimer County, or 12.9% of the population, identify as Hispanic. The share of Hispanic residents in Larimer County is lower than in Colorado overall, where 22.5% of the population is Hispanic. Larimer County ranks 39th statewide in terms of Hispanic residents as a share of the population, out of 64 counties.

Since the 2020 Census, Larimer County's Hispanic population has grown by an estimated 6.4%. Hispanic residents' share of Larimer County's population has increased from 12.4% to 12.9%.

Larimer County is more Hispanic than neighboring Gilpin County (7.4% Hispanic), Grand County (10.2% Hispanic), and Jackson County (10.5% Hispanic). Larimer County is less Hispanic than neighboring Boulder County (14.7% Hispanic), and Broomfield County (14.1% Hispanic).

Larimer County's Native American/Other Population

3,235 residents of Larimer County, or 0.9% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Larimer County is comparable to the share in Colorado overall, where 1% of the population is Native American/Other. Larimer County ranks 42nd statewide in terms of Native American/Other residents as a share of the population, out of 64 counties.

Since the 2020 Census, Larimer County's Native American/Other population has declined by an estimated 9.6%. Native American/Other residents' share of Larimer County's population has remained roughly unchanged at 0.9%.

Larimer County is more Native American/Other than neighboring Boulder County (0.5% Native American/Other), Broomfield County (0.8% Native American/Other), and Jackson County (0.4% Native American/Other). Larimer County is less Native American/Other than neighboring Gilpin County (1.2% Native American/Other), and Grand County (2.1% Native American/Other).

Larimer County's Multiracial Population

13,897 residents of Larimer County, or 3.8% of the population, identify as Multiracial. The share of Multiracial residents in Larimer County is comparable to the share in Colorado overall, where 4.6% of the population is Multiracial. Larimer County ranks 14th statewide in terms of Multiracial residents as a share of the population, out of 64 counties.

Since the 2020 Census, Larimer County's Multiracial population has declined by an estimated 15.4%. Multiracial residents' share of Larimer County's population has decreased from 4.6% to 3.8%.

Larimer County is more Multiracial than neighboring Gilpin County (3% Multiracial), and Jackson County (1.2% Multiracial). Larimer County is less Multiracial than neighboring Boulder County (4.8% Multiracial), Broomfield County (4.7% Multiracial), and Grand County (10.1% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.