Sullivan County Demographics

A map of Sullivan County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	5,487	5,406	93.2%	92.6%
Hispanic	138	105	2.3%	1.8%
Black	133	77	2.3%	1.3%
Multiracial	116	197	2.0%	3.4%
Native American/Other	9	38	0.2%	0.7%
Asian	5	17	0.1%	0.3%

Sullivan County, Pennsylvania has an estimated population of 5,888, a less than 1% change from the 5,840 recorded in the 2020 Census. The population is 93.2% White, 2.3% Black, 2.3% Hispanic, 2.0% Multiracial, 0.2% Native American/Other, and 0.1% Asian. This demographic dot map shows the population of Sullivan County, with one dot drawn for each person counted by the Census, color-coded by race.

Sullivan has become less 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 Sullivan County, that probability was 14.1% in 2020 and 13.0% in the most recent ACS estimates.

Sullivan County is ranked the 66th most populous county in Pennsylvania, out of 67 counties. Sullivan County was ranked the 66th most populous county in the 2020 Census.

Sullivan County's White Population

5,487 residents of Sullivan County, or 93.2% of the population, identify as White. The share of White residents in Sullivan County is significantly higher than in Pennsylvania overall, where 73% of the population is White. Sullivan County ranks 21st statewide in terms of White residents as a share of the population, out of 67 counties.

Since the 2020 Census, Sullivan County's White population has grown by an estimated 1.5%. White residents' share of Sullivan County's population has increased from 92.6% to 93.2%.

Sullivan County is more White than neighboring Columbia County (90.5% White), Montour County (89% White), Wyoming County (93.1% White), and Lycoming County (88.1% White). Sullivan County is less White than neighboring Bradford County (94.1% White).

Sullivan County's Black Population

133 residents of Sullivan County, or 2.3% of the population, identify as Black. The share of Black residents in Sullivan County is lower than in Pennsylvania overall, where 10.3% of the population is Black. Sullivan County ranks 48th statewide in terms of Black residents as a share of the population, out of 67 counties.

Since the 2020 Census, Sullivan County's Black population has grown by an estimated 72.7%. Black residents' share of Sullivan County's population has increased from 1.3% to 2.3%.

Sullivan County is more Black than neighboring Bradford County (0.9% Black), Columbia County (1.7% Black), and Wyoming County (0.6% Black). Sullivan County is less Black than neighboring Montour County (2.4% Black), and Lycoming County (4% Black).

Sullivan County's Asian Population

5 residents of Sullivan County, or 0.1% of the population, identify as Asian. The share of Asian residents in Sullivan County is slightly lower than in Pennsylvania overall, where 3.8% of the population is Asian. Sullivan County ranks 62nd statewide in terms of Asian residents as a share of the population, out of 67 counties.

Since the 2020 Census, Sullivan County's Asian population has declined by an estimated 70.6%. Asian residents' share of Sullivan County's population has remained roughly unchanged at 0.1%.

Sullivan County is less Asian than neighboring Bradford County (0.5% Asian), Columbia County (0.7% Asian), Montour County (3.4% Asian), Wyoming County (0.2% Asian), and Lycoming County (0.9% Asian).

Sullivan County's Hispanic Population

138 residents of Sullivan County, or 2.3% of the population, identify as Hispanic. The share of Hispanic residents in Sullivan County is lower than in Pennsylvania overall, where 8.7% of the population is Hispanic. Sullivan County ranks 46th statewide in terms of Hispanic residents as a share of the population, out of 67 counties.

Since the 2020 Census, Sullivan County's Hispanic population has grown by an estimated 31.4%. Hispanic residents' share of Sullivan County's population has remained roughly unchanged at 2.3%.

Sullivan County is more Hispanic than neighboring Bradford County (1.7% Hispanic). Sullivan County is less Hispanic than neighboring Columbia County (4.1% Hispanic), Montour County (3.1% Hispanic), Wyoming County (2.5% Hispanic), and Lycoming County (2.4% Hispanic).

Sullivan County's Native American/Other Population

9 residents of Sullivan County, or 0.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Sullivan County is comparable to the share in Pennsylvania overall, where 0.6% of the population is Native American/Other. Sullivan County ranks 4th statewide in terms of Native American/Other residents as a share of the population, out of 67 counties.

Since the 2020 Census, Sullivan County's Native American/Other population has declined by an estimated 76.3%. Native American/Other residents' share of Sullivan County's population has remained roughly unchanged at 0.2%.

Sullivan County is more Native American/Other than neighboring Wyoming County (0.1% Native American/Other). Sullivan County is less Native American/Other than neighboring Bradford County (0.4% Native American/Other), Columbia County (0.7% Native American/Other), and Lycoming County (0.3% Native American/Other).

Sullivan County's Multiracial Population

116 residents of Sullivan County, or 2.0% of the population, identify as Multiracial. The share of Multiracial residents in Sullivan County is comparable to the share in Pennsylvania overall, where 3.6% of the population is Multiracial. Sullivan County ranks 32nd statewide in terms of Multiracial residents as a share of the population, out of 67 counties.

Since the 2020 Census, Sullivan County's Multiracial population has declined by an estimated 41.1%. Multiracial residents' share of Sullivan County's population has decreased from 3.4% to 2.0%.

Sullivan County is more Multiracial than neighboring Montour County (1.8% Multiracial). Sullivan County is less Multiracial than neighboring Bradford County (2.3% Multiracial), Columbia County (2.3% Multiracial), Wyoming County (3.5% Multiracial), and Lycoming County (4.4% 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.