Collin County Demographics

A map of Collin County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	576,632	542,472	49.6%	51.0%
Asian	217,824	188,365	18.7%	17.7%
Hispanic	187,150	169,158	16.1%	15.9%
Black	125,634	108,100	10.8%	10.2%
Multiracial	46,642	46,973	4.0%	4.4%
Native American/Other	9,455	9,397	0.8%	0.9%

Collin County, Texas has an estimated population of 1,163,337, an increase from the 1,064,465 recorded in the 2020 Census. The population is 49.6% White, 18.7% Asian, 16.1% Hispanic, 10.8% Black, 4.0% Multiracial, and 0.8% Native American/Other. This demographic dot map shows the population of Collin County, with one dot drawn for each person counted by the Census, color-coded by race.

Collin has become slightly more racially diverse since the 2020 Census. It is slightly more diverse than Texas overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Collin County, that probability was 67.1% in 2020 and 68.0% in the most recent ACS estimates.

Collin County is ranked the 6th most populous county in Texas, out of 254 counties. Collin County was ranked the 6th most populous county in the 2020 Census.

Collin County's White Population

576,632 residents of Collin County, or 49.6% of the population, identify as White. The share of White residents in Collin County is considerably higher than in Texas overall, where 39.1% of the population is White. Collin County ranks 164th statewide in terms of White residents as a share of the population, out of 254 counties.

Since the 2020 Census, Collin County's White population has grown by an estimated 6.3%. White residents' share of Collin County's population has decreased from 51.0% to 49.6%.

Collin County is more White than neighboring Dallas County (26.4% White). Collin County is less White than neighboring Rockwall County (63% White), Grayson County (71.1% White), Hunt County (65% White), and Denton County (52.4% White).

Collin County's Black Population

125,634 residents of Collin County, or 10.8% of the population, identify as Black. The share of Black residents in Collin County is comparable to the share in Texas overall, where 11.9% of the population is Black. Collin County ranks 52nd statewide in terms of Black residents as a share of the population, out of 254 counties.

Since the 2020 Census, Collin County's Black population has grown by an estimated 16.2%. Black residents' share of Collin County's population has increased from 10.2% to 10.8%.

Collin County is more Black than neighboring Rockwall County (9.1% Black), Grayson County (5.1% Black), Hunt County (7.8% Black), and Denton County (10.7% Black). Collin County is less Black than neighboring Dallas County (22.1% Black).

Collin County's Asian Population

217,824 residents of Collin County, or 18.7% of the population, identify as Asian. The share of Asian residents in Collin County is considerably higher than in Texas overall, where 5.5% of the population is Asian. Collin County ranks 2nd statewide in terms of Asian residents as a share of the population, out of 254 counties.

Since the 2020 Census, Collin County's Asian population has grown by an estimated 15.6%. Asian residents' share of Collin County's population has increased from 17.7% to 18.7%.

Collin County is more Asian than neighboring Rockwall County (3.5% Asian), Grayson County (1.5% Asian), Dallas County (7% Asian), Hunt County (1.4% Asian), and Denton County (11% Asian).

Collin County's Hispanic Population

187,150 residents of Collin County, or 16.1% of the population, identify as Hispanic. The share of Hispanic residents in Collin County is significantly lower than in Texas overall, where 39.7% of the population is Hispanic. Collin County ranks 205th statewide in terms of Hispanic residents as a share of the population, out of 254 counties.

Since the 2020 Census, Collin County's Hispanic population has grown by an estimated 10.6%. Hispanic residents' share of Collin County's population has remained roughly unchanged at 16.1%.

Collin County is less Hispanic than neighboring Rockwall County (20.8% Hispanic), Grayson County (16.3% Hispanic), Dallas County (41.3% Hispanic), Hunt County (21.5% Hispanic), and Denton County (20.5% Hispanic).

Collin County's Native American/Other Population

9,455 residents of Collin County, or 0.8% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Collin County is comparable to the share in Texas overall, where 0.6% of the population is Native American/Other. Collin County ranks 58th statewide in terms of Native American/Other residents as a share of the population, out of 254 counties.

Since the 2020 Census, Collin County's Native American/Other population has remained roughly the same. Native American/Other residents' share of Collin County's population has remained roughly unchanged at 0.8%.

Collin County is more Native American/Other than neighboring Rockwall County (0.6% Native American/Other), Dallas County (0.5% Native American/Other), and Hunt County (0.6% Native American/Other). Collin County is less Native American/Other than neighboring Grayson County (1% Native American/Other).

Collin County's Multiracial Population

46,642 residents of Collin County, or 4.0% of the population, identify as Multiracial. The share of Multiracial residents in Collin County is comparable to the share in Texas overall, where 3.1% of the population is Multiracial. Collin County ranks 25th statewide in terms of Multiracial residents as a share of the population, out of 254 counties.

Since the 2020 Census, Collin County's Multiracial population has remained roughly the same. Multiracial residents' share of Collin County's population has remained roughly unchanged at 4.0%.

Collin County is more Multiracial than neighboring Rockwall County (3% Multiracial), Dallas County (2.7% Multiracial), and Hunt County (3.7% Multiracial). Collin County is less Multiracial than neighboring Grayson County (4.9% Multiracial), and Denton County (4.5% 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.