Mifflin County Demographics

A map of Mifflin County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	42,953	43,343	93.3%	93.9%
Multiracial	1,324	1,182	2.9%	2.6%
Hispanic	1,050	979	2.3%	2.1%
Black	449	350	1.0%	0.8%
Asian	146	160	0.3%	0.3%
Native American/Other	119	129	0.3%	0.3%

Mifflin County, Pennsylvania has an estimated population of 46,041, a less than 1% change from the 46,143 recorded in the 2020 Census. The population is 93.3% White, 2.9% Multiracial, 2.3% Hispanic, 1.0% Black, 0.3% Asian, and 0.3% Native American/Other. This demographic dot map shows the population of Mifflin County, with one dot drawn for each person counted by the Census, color-coded by race.

Mifflin 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 Mifflin County, that probability was 11.7% in 2020 and 12.8% in the most recent ACS estimates.

Mifflin County is ranked the 47th most populous county in Pennsylvania, out of 67 counties. Mifflin County was ranked the 46th most populous county in the 2020 Census.

Mifflin County's White Population

42,953 residents of Mifflin County, or 93.3% of the population, identify as White. The share of White residents in Mifflin County is significantly higher than in Pennsylvania overall, where 73% of the population is White. Mifflin County ranks 9th statewide in terms of White residents as a share of the population, out of 67 counties.

Since the 2020 Census, Mifflin County's White population has remained roughly the same. White residents' share of Mifflin County's population has decreased from 93.9% to 93.3%.

Mifflin County is more White than neighboring Juniata County (91.9% White), Centre County (82.8% White), Huntingdon County (89.3% White), and Cumberland County (80.7% White). Mifflin County is less White than neighboring Perry County (93.5% White).

Mifflin County's Black Population

449 residents of Mifflin County, or 1.0% of the population, identify as Black. The share of Black residents in Mifflin County is lower than in Pennsylvania overall, where 10.3% of the population is Black. Mifflin County ranks 56th statewide in terms of Black residents as a share of the population, out of 67 counties.

Since the 2020 Census, Mifflin County's Black population has grown by an estimated 28.3%. Black residents' share of Mifflin County's population has remained roughly unchanged at 1.0%.

Mifflin County is more Black than neighboring Perry County (0.8% Black). Mifflin County is less Black than neighboring Centre County (3.2% Black), Huntingdon County (4.5% Black), and Cumberland County (4.1% Black).

Mifflin County's Asian Population

146 residents of Mifflin County, or 0.3% of the population, identify as Asian. The share of Asian residents in Mifflin County is slightly lower than in Pennsylvania overall, where 3.8% of the population is Asian. Mifflin County ranks 55th statewide in terms of Asian residents as a share of the population, out of 67 counties.

Since the 2020 Census, Mifflin County's Asian population has declined by an estimated 8.8%. Asian residents' share of Mifflin County's population has remained roughly unchanged at 0.3%.

Mifflin County is less Asian than neighboring Juniata County (0.5% Asian), Centre County (5.7% Asian), Huntingdon County (0.5% Asian), and Cumberland County (5.7% Asian).

Mifflin County's Hispanic Population

1,050 residents of Mifflin County, or 2.3% of the population, identify as Hispanic. The share of Hispanic residents in Mifflin County is lower than in Pennsylvania overall, where 8.7% of the population is Hispanic. Mifflin County ranks 37th statewide in terms of Hispanic residents as a share of the population, out of 67 counties.

Since the 2020 Census, Mifflin County's Hispanic population has grown by an estimated 7.3%. Hispanic residents' share of Mifflin County's population has remained roughly unchanged at 2.3%.

Mifflin County is more Hispanic than neighboring Huntingdon County (2.1% Hispanic). Mifflin County is less Hispanic than neighboring Juniata County (4.1% Hispanic), Centre County (3.7% Hispanic), Perry County (2.5% Hispanic), and Cumberland County (5.1% Hispanic).

Mifflin County's Native American/Other Population

119 residents of Mifflin County, or 0.3% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Mifflin County is comparable to the share in Pennsylvania overall, where 0.6% of the population is Native American/Other. Mifflin County ranks 60th statewide in terms of Native American/Other residents as a share of the population, out of 67 counties.

Since the 2020 Census, Mifflin County's Native American/Other population has declined by an estimated 7.8%. Native American/Other residents' share of Mifflin County's population has remained roughly unchanged at 0.3%.

Mifflin County is more Native American/Other than neighboring Huntingdon County (0.2% Native American/Other), and Perry County (0.2% Native American/Other). Mifflin County is less Native American/Other than neighboring Centre County (0.6% Native American/Other), and Cumberland County (0.4% Native American/Other).

Mifflin County's Multiracial Population

1,324 residents of Mifflin County, or 2.9% of the population, identify as Multiracial. The share of Multiracial residents in Mifflin County is comparable to the share in Pennsylvania overall, where 3.6% of the population is Multiracial. Mifflin County ranks 61st statewide in terms of Multiracial residents as a share of the population, out of 67 counties.

Since the 2020 Census, Mifflin County's Multiracial population has grown by an estimated 12.0%. Multiracial residents' share of Mifflin County's population has remained roughly unchanged at 2.9%.

Mifflin County is more Multiracial than neighboring Juniata County (2.1% Multiracial), and Perry County (2.7% Multiracial). Mifflin County is less Multiracial than neighboring Centre County (4.1% Multiracial), Huntingdon County (3.4% Multiracial), and Cumberland County (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.