Butler County Demographics

A map of Butler County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	181,959	178,081	92.2%	91.9%
Multiracial	5,321	6,284	2.7%	3.2%
Hispanic	3,981	3,665	2.0%	1.9%
Asian	2,832	2,792	1.4%	1.4%
Black	2,096	2,174	1.1%	1.1%
Native American/Other	1,065	767	0.5%	0.4%

Butler County, Pennsylvania has an estimated population of 197,254, a slight increase from the 193,763 recorded in the 2020 Census. The population is 92.2% White, 2.7% Multiracial, 2.0% Hispanic, 1.4% Asian, 1.1% Black, and 0.5% Native American/Other. This demographic dot map shows the population of Butler County, with one dot drawn for each person counted by the Census, color-coded by race.

Butler has become slightly 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 Butler County, that probability was 15.4% in 2020 and 14.8% in the most recent ACS estimates.

Butler County is ranked the 19th most populous county in Pennsylvania, out of 67 counties. Butler County was ranked the 19th most populous county in the 2020 Census.

Butler County's White Population

181,959 residents of Butler County, or 92.2% of the population, identify as White. The share of White residents in Butler County is significantly higher than in Pennsylvania overall, where 73% of the population is White. Butler County ranks 24th statewide in terms of White residents as a share of the population, out of 67 counties.

Since the 2020 Census, Butler County's White population has grown by an estimated 2.2%. White residents' share of Butler County's population has remained roughly unchanged at 92.2%.

Butler County is more White than neighboring Lawrence County (88.7% White), Allegheny County (75.5% White), and Beaver County (86.3% White). Butler County is less White than neighboring Armstrong County (94.9% White), and Venango County (93.3% White).

Butler County's Black Population

2,096 residents of Butler County, or 1.1% of the population, identify as Black. The share of Black residents in Butler County is lower than in Pennsylvania overall, where 10.3% of the population is Black. Butler County ranks 50th statewide in terms of Black residents as a share of the population, out of 67 counties.

Since the 2020 Census, Butler County's Black population has declined by an estimated 3.6%. Black residents' share of Butler County's population has remained roughly unchanged at 1.1%.

Butler County is more Black than neighboring Armstrong County (0.9% Black). Butler County is less Black than neighboring Lawrence County (3.7% Black), Allegheny County (12.4% Black), Beaver County (6.2% Black), and Venango County (1.2% Black).

Butler County's Asian Population

2,832 residents of Butler County, or 1.4% of the population, identify as Asian. The share of Asian residents in Butler County is slightly lower than in Pennsylvania overall, where 3.8% of the population is Asian. Butler County ranks 20th statewide in terms of Asian residents as a share of the population, out of 67 counties.

Since the 2020 Census, Butler County's Asian population has grown by an estimated 1.4%. Asian residents' share of Butler County's population has remained roughly unchanged at 1.4%.

Butler County is more Asian than neighboring Lawrence County (0.3% Asian), Armstrong County (0.3% Asian), Beaver County (0.5% Asian), and Venango County (0.3% Asian). Butler County is less Asian than neighboring Allegheny County (4.3% Asian).

Butler County's Hispanic Population

3,981 residents of Butler County, or 2.0% of the population, identify as Hispanic. The share of Hispanic residents in Butler County is lower than in Pennsylvania overall, where 8.7% of the population is Hispanic. Butler County ranks 43rd statewide in terms of Hispanic residents as a share of the population, out of 67 counties.

Since the 2020 Census, Butler County's Hispanic population has grown by an estimated 8.6%. Hispanic residents' share of Butler County's population has remained roughly unchanged at 2.0%.

Butler County is more Hispanic than neighboring Armstrong County (0.9% Hispanic), and Venango County (1.3% Hispanic). Butler County is less Hispanic than neighboring Lawrence County (2.2% Hispanic), Allegheny County (3% Hispanic), and Beaver County (2.4% Hispanic).

Butler County's Native American/Other Population

1,065 residents of Butler County, or 0.5% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Butler County is comparable to the share in Pennsylvania overall, where 0.6% of the population is Native American/Other. Butler County ranks 42nd statewide in terms of Native American/Other residents as a share of the population, out of 67 counties.

Since the 2020 Census, Butler County's Native American/Other population has grown by an estimated 38.9%. Native American/Other residents' share of Butler County's population has remained roughly unchanged at 0.5%.

Butler County is more Native American/Other than neighboring Armstrong County (0.2% Native American/Other), and Beaver County (0.4% Native American/Other). Butler County is less Native American/Other than neighboring Lawrence County (0.6% Native American/Other), Allegheny County (0.6% Native American/Other), and Venango County (0.6% Native American/Other).

Butler County's Multiracial Population

5,321 residents of Butler County, or 2.7% of the population, identify as Multiracial. The share of Multiracial residents in Butler County is comparable to the share in Pennsylvania overall, where 3.6% of the population is Multiracial. Butler County ranks 38th statewide in terms of Multiracial residents as a share of the population, out of 67 counties.

Since the 2020 Census, Butler County's Multiracial population has declined by an estimated 15.3%. Multiracial residents' share of Butler County's population has decreased from 3.2% to 2.7%.

Butler County is less Multiracial than neighboring Lawrence County (4.5% Multiracial), Allegheny County (4.3% Multiracial), Beaver County (4.3% Multiracial), and Venango County (3.2% 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.