Gaithersburg, MD Demographics

A map of Gaithersburg's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
Hispanic	21,331	19,834	30.5%	28.5%
White	20,727	21,970	29.7%	31.5%
Asian	14,162	13,202	20.3%	19.0%
Black	10,219	11,193	14.6%	16.1%
Multiracial	2,669	2,665	3.8%	3.8%
Native American/Other	717	793	1.0%	1.1%

Gaithersburg, Maryland has an estimated population of 69,825, a less than 1% change from the 69,657 recorded in the 2020 Census. The population is 30.5% Hispanic, 29.7% White, 20.3% Asian, 14.6% Black, 3.8% Multiracial, and 1.0% Native American/Other. This demographic dot map shows the population of Gaithersburg, with one dot drawn for each person counted by the Census, color-coded by race.

Gaithersburg is about as racially diverse as it was in the 2020 Census. It is considerably more diverse than Maryland overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Gaithersburg, that probability was 75.6% in 2020 and 75.4% in the most recent ACS estimates.

Gaithersburg is ranked the 9th most populous place in Maryland, out of 536 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). Gaithersburg was ranked the 9th most populous place in the 2020 Census.

Gaithersburg's White Population

20,727 residents of Gaithersburg, or 29.7% of the population, identify as White. The share of White residents in Gaithersburg is significantly lower than in Maryland overall, where 46.6% of the population is White. Gaithersburg ranks 430th statewide in terms of White residents as a share of the population, out of 536 places.

Since the 2020 Census, Gaithersburg's White population has declined by an estimated 5.7%. White residents' share of Gaithersburg's population has decreased from 31.5% to 29.7%.

Gaithersburg is more White than neighboring Flower Hill (20% White), Montgomery Village (23.5% White), and Germantown (23.2% White). Gaithersburg is less White than neighboring Washington Grove (83.9% White), and North Potomac (42.1% White).

Gaithersburg's Black Population

10,219 residents of Gaithersburg, or 14.6% of the population, identify as Black. The share of Black residents in Gaithersburg is considerably lower than in Maryland overall, where 28.9% of the population is Black. Gaithersburg ranks 192nd statewide in terms of Black residents as a share of the population, out of 536 places.

Since the 2020 Census, Gaithersburg's Black population has declined by an estimated 8.7%. Black residents' share of Gaithersburg's population has decreased from 16.1% to 14.6%.

Gaithersburg is more Black than neighboring Washington Grove (1% Black), and North Potomac (6.1% Black). Gaithersburg is less Black than neighboring Flower Hill (16.3% Black), Montgomery Village (23.2% Black), and Germantown (27.2% Black).

Gaithersburg's Asian Population

14,162 residents of Gaithersburg, or 20.3% of the population, identify as Asian. The share of Asian residents in Gaithersburg is considerably higher than in Maryland overall, where 6.5% of the population is Asian. Gaithersburg ranks 17th statewide in terms of Asian residents as a share of the population, out of 536 places.

Since the 2020 Census, Gaithersburg's Asian population has grown by an estimated 7.3%. Asian residents' share of Gaithersburg's population has increased from 19.0% to 20.3%.

Gaithersburg is more Asian than neighboring Washington Grove (4.7% Asian), Flower Hill (13.9% Asian), and Montgomery Village (14.2% Asian). Gaithersburg is less Asian than neighboring North Potomac (40.5% Asian), and Germantown (21% Asian).

Gaithersburg's Hispanic Population

21,331 residents of Gaithersburg, or 30.5% of the population, identify as Hispanic. The share of Hispanic residents in Gaithersburg is significantly higher than in Maryland overall, where 12.5% of the population is Hispanic. Gaithersburg ranks 31st statewide in terms of Hispanic residents as a share of the population, out of 536 places.

Since the 2020 Census, Gaithersburg's Hispanic population has grown by an estimated 7.5%. Hispanic residents' share of Gaithersburg's population has increased from 28.5% to 30.5%.

Gaithersburg is more Hispanic than neighboring Washington Grove (4.3% Hispanic), North Potomac (6.6% Hispanic), and Germantown (22.9% Hispanic). Gaithersburg is less Hispanic than neighboring Flower Hill (40.4% Hispanic), and Montgomery Village (32.5% Hispanic).

Gaithersburg's Native American/Other Population

717 residents of Gaithersburg, or 1.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Gaithersburg is comparable to the share in Maryland overall, where 0.8% of the population is Native American/Other. Gaithersburg ranks 79th statewide in terms of Native American/Other residents as a share of the population, out of 536 places.

Since the 2020 Census, Gaithersburg's Native American/Other population has declined by an estimated 9.6%. Native American/Other residents' share of Gaithersburg's population has remained roughly unchanged at 1.0%.

Gaithersburg is more Native American/Other than neighboring Washington Grove (0.2% Native American/Other), Montgomery Village (0.9% Native American/Other), and Germantown (0.5% Native American/Other). Gaithersburg is less Native American/Other than neighboring Flower Hill (3.8% Native American/Other).

Gaithersburg's Multiracial Population

2,669 residents of Gaithersburg, or 3.8% of the population, identify as Multiracial. The share of Multiracial residents in Gaithersburg is comparable to the share in Maryland overall, where 4.6% of the population is Multiracial. Gaithersburg ranks 316th statewide in terms of Multiracial residents as a share of the population, out of 536 places.

Since the 2020 Census, Gaithersburg's Multiracial population has remained roughly the same. Multiracial residents' share of Gaithersburg's population has remained roughly unchanged at 3.8%.

Gaithersburg is more Multiracial than neighboring North Potomac (3.7% Multiracial). Gaithersburg is less Multiracial than neighboring Washington Grove (5.9% Multiracial), Flower Hill (5.5% Multiracial), Montgomery Village (5.7% Multiracial), and Germantown (5.2% 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.