Duncannon, PA Demographics

A map of Duncannon's Population by Race

Duncannon, Pennsylvania has an estimated population of 1,391, a decrease from the 1,478 recorded in the 2020 Census. The population is 88.4% White, 6.6% Multiracial, 4.3% Hispanic, 0.4% Black, 0.2% Asian, and 0.1% Native American/Other. This demographic dot map shows the population of Duncannon, with one dot drawn for each person counted by the Census, color-coded by race.

Duncannon 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 Duncannon, that probability was 19.6% in 2020 and 21.3% in the most recent ACS estimates.

Duncannon is ranked the 828th 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). Duncannon was ranked the 790th most populous place in the 2020 Census.

Duncannon's White Population

1,229 residents of Duncannon, or 88.4% of the population, identify as White. The share of White residents in Duncannon is significantly higher than in Pennsylvania overall, where 73% of the population is White. Duncannon ranks 1100th statewide in terms of White residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Duncannon's White population has declined by an estimated 7.0%. White residents' share of Duncannon's population has decreased from 89.4% to 88.4%.

Duncannon is more White than neighboring New Buffalo (87.5% White), and Newport (85.1% White). Duncannon is less White than neighboring Dauphin (97.6% White), Marysville (89.4% White), and Halifax (92.6% White).

Duncannon's Black Population

5 residents of Duncannon, or 0.4% of the population, identify as Black. The share of Black residents in Duncannon is lower than in Pennsylvania overall, where 10.3% of the population is Black. Duncannon ranks 660th statewide in terms of Black residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Duncannon's Black population has declined by an estimated 82.1%. Black residents' share of Duncannon's population has decreased from 1.9% to 0.4%.

Duncannon is more Black than neighboring New Buffalo (0% Black), and Dauphin (0.3% Black). Duncannon is less Black than neighboring Marysville (1.3% Black), Halifax (2.5% Black), and Newport (4.5% Black).

Duncannon's Asian Population

3 residents of Duncannon, or 0.2% of the population, identify as Asian. The share of Asian residents in Duncannon is slightly lower than in Pennsylvania overall, where 3.8% of the population is Asian. Duncannon ranks 834th statewide in terms of Asian residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Duncannon's Asian population has declined by an estimated 66.7%. Asian residents' share of Duncannon's population has remained roughly unchanged at 0.2%.

Duncannon is more Asian than neighboring Dauphin (0% Asian), Marysville (0% Asian), and Halifax (0% Asian). Duncannon is less Asian than neighboring New Buffalo (2.1% Asian), and Newport (2% Asian).

Duncannon's Hispanic Population

60 residents of Duncannon, or 4.3% of the population, identify as Hispanic. The share of Hispanic residents in Duncannon is slightly lower than in Pennsylvania overall, where 8.7% of the population is Hispanic. Duncannon ranks 826th statewide in terms of Hispanic residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Duncannon's Hispanic population has grown by an estimated 50.0%. Hispanic residents' share of Duncannon's population has increased from 2.7% to 4.3%.

Duncannon is more Hispanic than neighboring New Buffalo (0% Hispanic), Dauphin (1% Hispanic), Halifax (0.8% Hispanic), and Newport (4% Hispanic). Duncannon is less Hispanic than neighboring Marysville (7% Hispanic).

Duncannon's Native American/Other Population

2 residents of Duncannon, or 0.1% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Duncannon is comparable to the share in Pennsylvania overall, where 0.6% of the population is Native American/Other. Duncannon ranks 713th statewide in terms of Native American/Other residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Duncannon's Native American/Other population has declined by an estimated 71.4%. Native American/Other residents' share of Duncannon's population has remained roughly unchanged at 0.1%.

Duncannon is more Native American/Other than neighboring New Buffalo (0% Native American/Other), Dauphin (0% Native American/Other), Marysville (0% Native American/Other), Halifax (0% Native American/Other), and Newport (0% Native American/Other).

Duncannon's Multiracial Population

92 residents of Duncannon, or 6.6% of the population, identify as Multiracial. The share of Multiracial residents in Duncannon is slightly higher than in Pennsylvania overall, where 3.6% of the population is Multiracial. Duncannon ranks 325th statewide in terms of Multiracial residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Duncannon's Multiracial population has grown by an estimated 27.8%. Multiracial residents' share of Duncannon's population has increased from 4.9% to 6.6%.

Duncannon is more Multiracial than neighboring Dauphin (1.1% Multiracial), Marysville (2.3% Multiracial), Halifax (4.1% Multiracial), and Newport (4.3% Multiracial). Duncannon is less Multiracial than neighboring New Buffalo (10.4% 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.