Johnstown, CO Demographics

A map of Johnstown's Population by Race

Johnstown, Colorado has an estimated population of 18,883, an increase from the 17,303 recorded in the 2020 Census. The population is 73.3% White, 20.0% Hispanic, 3.8% Multiracial, 1.5% Asian, 0.7% Black, and 0.7% Native American/Other. This demographic dot map shows the population of Johnstown, with one dot drawn for each person counted by the Census, color-coded by race.

Johnstown has become more 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 Johnstown, that probability was 38.9% in 2020 and 42.0% in the most recent ACS estimates.

Johnstown is ranked the 43rd most populous place in Colorado, out of 482 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Johnstown was ranked the 45th most populous place in the 2020 Census.

Johnstown's White Population

13,845 residents of Johnstown, or 73.3% of the population, identify as White. The share of White residents in Johnstown is higher than in Colorado overall, where 64.8% of the population is White. Johnstown ranks 278th statewide in terms of White residents as a share of the population, out of 482 places.

Since the 2020 Census, Johnstown's White population has grown by an estimated 5.0%. White residents' share of Johnstown's population has decreased from 76.2% to 73.3%.

Johnstown is more White than neighboring Milliken (69.9% White), and Mead (69.8% White). Johnstown is less White than neighboring Berthoud (82.3% White), Windsor (80.8% White), and Loveland (78.6% White).

Johnstown's Black Population

140 residents of Johnstown, or 0.7% of the population, identify as Black. The share of Black residents in Johnstown is slightly lower than in Colorado overall, where 3.8% of the population is Black. Johnstown ranks 174th statewide in terms of Black residents as a share of the population, out of 482 places.

Since the 2020 Census, Johnstown's Black population has grown by an estimated 14.8%. Black residents' share of Johnstown's population has remained roughly unchanged at 0.7%.

Johnstown is more Black than neighboring Milliken (0% Black), Berthoud (0.5% Black), and Mead (0% Black). Johnstown is less Black than neighboring Windsor (1.1% Black), and Loveland (0.9% Black).

Johnstown's Asian Population

274 residents of Johnstown, or 1.5% of the population, identify as Asian. The share of Asian residents in Johnstown is comparable to the share in Colorado overall, where 3.2% of the population is Asian. Johnstown ranks 138th statewide in terms of Asian residents as a share of the population, out of 482 places.

Since the 2020 Census, Johnstown's Asian population has grown by an estimated 2.6%. Asian residents' share of Johnstown's population has remained roughly unchanged at 1.5%.

Johnstown is more Asian than neighboring Milliken (0% Asian), Windsor (1.4% Asian), and Loveland (1.2% Asian). Johnstown is less Asian than neighboring Berthoud (2% Asian), and Mead (2% Asian).

Johnstown's Hispanic Population

3,782 residents of Johnstown, or 20.0% of the population, identify as Hispanic. The share of Hispanic residents in Johnstown is slightly lower than in Colorado overall, where 22.5% of the population is Hispanic. Johnstown ranks 180th statewide in terms of Hispanic residents as a share of the population, out of 482 places.

Since the 2020 Census, Johnstown's Hispanic population has grown by an estimated 30.5%. Hispanic residents' share of Johnstown's population has increased from 16.7% to 20.0%.

Johnstown is more Hispanic than neighboring Berthoud (12.9% Hispanic), Windsor (12% Hispanic), and Loveland (15.3% Hispanic). Johnstown is less Hispanic than neighboring Milliken (28.1% Hispanic), and Mead (25.9% Hispanic).

Johnstown's Native American/Other Population

123 residents of Johnstown, or 0.7% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Johnstown is comparable to the share in Colorado overall, where 1% of the population is Native American/Other. Johnstown ranks 295th statewide in terms of Native American/Other residents as a share of the population, out of 482 places.

Since the 2020 Census, Johnstown's Native American/Other population has declined by an estimated 12.8%. Native American/Other residents' share of Johnstown's population has remained roughly unchanged at 0.7%.

Johnstown is more Native American/Other than neighboring Milliken (0.5% Native American/Other), Berthoud (0.3% Native American/Other), and Mead (0% Native American/Other). Johnstown is less Native American/Other than neighboring Windsor (1.4% Native American/Other), and Loveland (0.8% Native American/Other).

Johnstown's Multiracial Population

719 residents of Johnstown, or 3.8% of the population, identify as Multiracial. The share of Multiracial residents in Johnstown is comparable to the share in Colorado overall, where 4.6% of the population is Multiracial. Johnstown ranks 255th statewide in terms of Multiracial residents as a share of the population, out of 482 places.

Since the 2020 Census, Johnstown's Multiracial population has grown by an estimated 5.0%. Multiracial residents' share of Johnstown's population has remained roughly unchanged at 3.8%.

Johnstown is more Multiracial than neighboring Milliken (1.4% Multiracial), Berthoud (2.1% Multiracial), Windsor (3.4% Multiracial), Mead (2.2% Multiracial), and Loveland (3.1% 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.