Mount Joy, PA Demographics

A map of Mount Joy's Population by Race

Mount Joy, Pennsylvania has an estimated population of 8,344, a less than 1% change from the 8,325 recorded in the 2020 Census. The population is 81.9% White, 13.2% Hispanic, 2.9% Multiracial, 1.1% Asian, 0.9% Black, and 0.0% Native American/Other. This demographic dot map shows the population of Mount Joy, with one dot drawn for each person counted by the Census, color-coded by race.

Mount Joy has become more racially diverse since the 2020 Census. It is considerably less diverse than Pennsylvania overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Mount Joy, that probability was 29.3% in 2020 and 31.1% in the most recent ACS estimates.

Mount Joy is ranked the 129th most populous place in Pennsylvania, out of 2,002 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). Mount Joy was ranked the 123rd most populous place in the 2020 Census.

Mount Joy's White Population

6,835 residents of Mount Joy, or 81.9% of the population, identify as White. The share of White residents in Mount Joy is higher than in Pennsylvania overall, where 73% of the population is White. Mount Joy ranks 1457th statewide in terms of White residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Mount Joy's White population has declined by an estimated 1.6%. White residents' share of Mount Joy's population has decreased from 83.4% to 81.9%.

Mount Joy is more White than neighboring Marietta (74.8% White), Columbia (66.1% White), and Maytown (75.1% White). Mount Joy is less White than neighboring Rheems (97.3% White), and Salunga (93.5% White).

Mount Joy's Black Population

74 residents of Mount Joy, or 0.9% of the population, identify as Black. The share of Black residents in Mount Joy is lower than in Pennsylvania overall, where 10.3% of the population is Black. Mount Joy ranks 521st statewide in terms of Black residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Mount Joy's Black population has declined by an estimated 67.0%. Black residents' share of Mount Joy's population has decreased from 2.7% to 0.9%.

Mount Joy is more Black than neighboring Salunga (0% Black). Mount Joy is less Black than neighboring Rheems (2% Black), Marietta (3.6% Black), Columbia (7.7% Black), and Maytown (2.9% Black).

Mount Joy's Asian Population

94 residents of Mount Joy, or 1.1% of the population, identify as Asian. The share of Asian residents in Mount Joy is slightly lower than in Pennsylvania overall, where 3.8% of the population is Asian. Mount Joy ranks 537th statewide in terms of Asian residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Mount Joy's Asian population has declined by an estimated 1.1%. Asian residents' share of Mount Joy's population has remained roughly unchanged at 1.1%.

Mount Joy is more Asian than neighboring Rheems (0% Asian), and Columbia (0% Asian). Mount Joy is less Asian than neighboring Marietta (1.2% Asian), Maytown (1.2% Asian), and Salunga (3.2% Asian).

Mount Joy's Hispanic Population

1,099 residents of Mount Joy, or 13.2% of the population, identify as Hispanic. The share of Hispanic residents in Mount Joy is slightly higher than in Pennsylvania overall, where 8.7% of the population is Hispanic. Mount Joy ranks 190th statewide in terms of Hispanic residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Mount Joy's Hispanic population has grown by an estimated 38.1%. Hispanic residents' share of Mount Joy's population has increased from 9.6% to 13.2%.

Mount Joy is more Hispanic than neighboring Rheems (0% Hispanic), Marietta (7.9% Hispanic), and Salunga (1.2% Hispanic). Mount Joy is less Hispanic than neighboring Columbia (22.9% Hispanic), and Maytown (18% Hispanic).

Mount Joy's Native American/Other Population

0 residents of Mount Joy, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Mount Joy is comparable to the share in Pennsylvania overall, where 0.6% of the population is Native American/Other. Mount Joy ranks 1189th statewide in terms of Native American/Other residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Mount Joy's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Mount Joy's population has remained roughly unchanged at 0.0%.

Mount Joy is less Native American/Other than neighboring Rheems (0.4% Native American/Other), Marietta (9.8% Native American/Other), and Columbia (0.7% Native American/Other).

Mount Joy's Multiracial Population

242 residents of Mount Joy, or 2.9% of the population, identify as Multiracial. The share of Multiracial residents in Mount Joy is comparable to the share in Pennsylvania overall, where 3.6% of the population is Multiracial. Mount Joy ranks 1183rd statewide in terms of Multiracial residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Mount Joy's Multiracial population has remained roughly the same. Multiracial residents' share of Mount Joy's population has remained roughly unchanged at 2.9%.

Mount Joy is more Multiracial than neighboring Rheems (0.2% Multiracial), Marietta (2.8% Multiracial), Columbia (2.6% Multiracial), Maytown (2.7% Multiracial), and Salunga (2.1% 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.