Montgomery County Demographics

A map of Montgomery County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	401,443	371,403	58.7%	59.9%
Hispanic	191,006	164,089	27.9%	26.4%
Black	41,547	34,177	6.1%	5.5%
Multiracial	23,747	24,298	3.5%	3.9%
Asian	22,808	21,436	3.3%	3.5%
Native American/Other	3,881	5,040	0.6%	0.8%

Montgomery County, Texas has an estimated population of 684,432, a large increase from the 620,443 recorded in the 2020 Census. The population is 58.7% White, 27.9% Hispanic, 6.1% Black, 3.5% Multiracial, 3.3% Asian, and 0.6% Native American/Other. This demographic dot map shows the population of Montgomery County, with one dot drawn for each person counted by the Census, color-coded by race.

Montgomery has become slightly more racially diverse since the 2020 Census. It is considerably less 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 Montgomery County, that probability was 56.6% in 2020 and 57.2% in the most recent ACS estimates.

Montgomery County is ranked the 11th most populous county in Texas, out of 254 counties. Montgomery County was ranked the 11th most populous county in the 2020 Census.

Montgomery County's White Population

401,443 residents of Montgomery County, or 58.7% of the population, identify as White. The share of White residents in Montgomery County is significantly higher than in Texas overall, where 39.1% of the population is White. Montgomery County ranks 120th statewide in terms of White residents as a share of the population, out of 254 counties.

Since the 2020 Census, Montgomery County's White population has grown by an estimated 8.1%. White residents' share of Montgomery County's population has decreased from 59.9% to 58.7%.

Montgomery County is more White than neighboring Walker County (53% White), Harris County (26.6% White), Grimes County (56.8% White), and Waller County (38.1% White). Montgomery County is less White than neighboring San Jacinto County (68.8% White).

Montgomery County's Black Population

41,547 residents of Montgomery County, or 6.1% of the population, identify as Black. The share of Black residents in Montgomery County is lower than in Texas overall, where 11.9% of the population is Black. Montgomery County ranks 98th statewide in terms of Black residents as a share of the population, out of 254 counties.

Since the 2020 Census, Montgomery County's Black population has grown by an estimated 21.6%. Black residents' share of Montgomery County's population has increased from 5.5% to 6.1%.

Montgomery County is less Black than neighboring San Jacinto County (8.7% Black), Walker County (19.6% Black), Harris County (18.6% Black), Grimes County (11.3% Black), and Waller County (23.4% Black).

Montgomery County's Asian Population

22,808 residents of Montgomery County, or 3.3% of the population, identify as Asian. The share of Asian residents in Montgomery County is slightly lower than in Texas overall, where 5.5% of the population is Asian. Montgomery County ranks 17th statewide in terms of Asian residents as a share of the population, out of 254 counties.

Since the 2020 Census, Montgomery County's Asian population has grown by an estimated 6.4%. Asian residents' share of Montgomery County's population has remained roughly unchanged at 3.3%.

Montgomery County is more Asian than neighboring San Jacinto County (0.3% Asian), Walker County (1% Asian), Grimes County (0.4% Asian), and Waller County (2% Asian). Montgomery County is less Asian than neighboring Harris County (7.3% Asian).

Montgomery County's Hispanic Population

191,006 residents of Montgomery County, or 27.9% of the population, identify as Hispanic. The share of Hispanic residents in Montgomery County is considerably lower than in Texas overall, where 39.7% of the population is Hispanic. Montgomery County ranks 129th statewide in terms of Hispanic residents as a share of the population, out of 254 counties.

Since the 2020 Census, Montgomery County's Hispanic population has grown by an estimated 16.4%. Hispanic residents' share of Montgomery County's population has increased from 26.4% to 27.9%.

Montgomery County is more Hispanic than neighboring San Jacinto County (19.2% Hispanic), Walker County (21.8% Hispanic), and Grimes County (25.5% Hispanic). Montgomery County is less Hispanic than neighboring Harris County (44% Hispanic), and Waller County (33.5% Hispanic).

Montgomery County's Native American/Other Population

3,881 residents of Montgomery County, or 0.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Montgomery County is comparable to the share in Texas overall, where 0.6% of the population is Native American/Other. Montgomery County ranks 82nd statewide in terms of Native American/Other residents as a share of the population, out of 254 counties.

Since the 2020 Census, Montgomery County's Native American/Other population has declined by an estimated 23.0%. Native American/Other residents' share of Montgomery County's population has remained roughly unchanged at 0.6%.

Montgomery County is more Native American/Other than neighboring San Jacinto County (0.1% Native American/Other), and Waller County (0.3% Native American/Other). Montgomery County is less Native American/Other than neighboring Walker County (0.8% Native American/Other), and Grimes County (2% Native American/Other).

Montgomery County's Multiracial Population

23,747 residents of Montgomery County, or 3.5% of the population, identify as Multiracial. The share of Multiracial residents in Montgomery County is comparable to the share in Texas overall, where 3.1% of the population is Multiracial. Montgomery County ranks 47th statewide in terms of Multiracial residents as a share of the population, out of 254 counties.

Since the 2020 Census, Montgomery County's Multiracial population has declined by an estimated 2.3%. Multiracial residents' share of Montgomery County's population has remained roughly unchanged at 3.5%.

Montgomery County is more Multiracial than neighboring San Jacinto County (2.9% Multiracial), Harris County (3% Multiracial), and Waller County (2.6% Multiracial). Montgomery County is less Multiracial than neighboring Walker County (3.8% Multiracial), and Grimes County (4% 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.