Miller County Demographics

A map of Miller County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	27,869	27,593	65.8%	64.8%
Black	10,673	10,922	25.2%	25.6%
Hispanic	1,754	1,583	4.1%	3.7%
Multiracial	1,400	1,908	3.3%	4.5%
Native American/Other	338	389	0.8%	0.9%
Asian	326	205	0.8%	0.5%

Miller County, Arkansas has an estimated population of 42,360, a less than 1% change from the 42,600 recorded in the 2020 Census. The population is 65.8% White, 25.2% Black, 4.1% Hispanic, 3.3% Multiracial, 0.8% Asian, and 0.8% Native American/Other. This demographic dot map shows the population of Miller County, with one dot drawn for each person counted by the Census, color-coded by race.

Miller has become less racially diverse since the 2020 Census. It is less diverse than Arkansas overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Miller County, that probability was 51.1% in 2020 and 50.1% in the most recent ACS estimates.

Miller County is ranked the 17th most populous county in Arkansas, out of 75 counties. Miller County was ranked the 16th most populous county in the 2020 Census.

Miller County's White Population

27,869 residents of Miller County, or 65.8% of the population, identify as White. The share of White residents in Miller County is comparable to the share in Arkansas overall, where 67.4% of the population is White. Miller County ranks 53rd statewide in terms of White residents as a share of the population, out of 75 counties.

Since the 2020 Census, Miller County's White population has grown by an estimated 1.0%. White residents' share of Miller County's population has increased from 64.8% to 65.8%.

Miller County is more White than neighboring Lafayette County (57.7% White), Hempstead County (51.5% White), and Bowie County (60.9% White). Miller County is less White than neighboring Cass County (74.4% White), and Little River County (71.6% White).

Miller County's Black Population

10,673 residents of Miller County, or 25.2% of the population, identify as Black. The share of Black residents in Miller County is considerably higher than in Arkansas overall, where 14.6% of the population is Black. Miller County ranks 21st statewide in terms of Black residents as a share of the population, out of 75 counties.

Since the 2020 Census, Miller County's Black population has declined by an estimated 2.3%. Black residents' share of Miller County's population has remained roughly unchanged at 25.2%.

Miller County is more Black than neighboring Cass County (16.2% Black), Little River County (19% Black), and Bowie County (24.7% Black). Miller County is less Black than neighboring Lafayette County (36.9% Black), and Hempstead County (28.6% Black).

Miller County's Asian Population

326 residents of Miller County, or 0.8% of the population, identify as Asian. The share of Asian residents in Miller County is comparable to the share in Arkansas overall, where 1.6% of the population is Asian. Miller County ranks 40th statewide in terms of Asian residents as a share of the population, out of 75 counties.

Since the 2020 Census, Miller County's Asian population has grown by an estimated 59.0%. Asian residents' share of Miller County's population has remained roughly unchanged at 0.8%.

Miller County is more Asian than neighboring Hempstead County (0.7% Asian), Cass County (0.7% Asian), and Little River County (0.4% Asian). Miller County is less Asian than neighboring Lafayette County (1% Asian), and Bowie County (1.4% Asian).

Miller County's Hispanic Population

1,754 residents of Miller County, or 4.1% of the population, identify as Hispanic. The share of Hispanic residents in Miller County is slightly lower than in Arkansas overall, where 9% of the population is Hispanic. Miller County ranks 37th statewide in terms of Hispanic residents as a share of the population, out of 75 counties.

Since the 2020 Census, Miller County's Hispanic population has grown by an estimated 10.8%. Hispanic residents' share of Miller County's population has remained roughly unchanged at 4.1%.

Miller County is more Hispanic than neighboring Lafayette County (0.6% Hispanic), and Little River County (4% Hispanic). Miller County is less Hispanic than neighboring Hempstead County (15.3% Hispanic), Cass County (5.4% Hispanic), and Bowie County (8.6% Hispanic).

Miller County's Native American/Other Population

338 residents of Miller County, or 0.8% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Miller County is comparable to the share in Arkansas overall, where 1% of the population is Native American/Other. Miller County ranks 26th statewide in terms of Native American/Other residents as a share of the population, out of 75 counties.

Since the 2020 Census, Miller County's Native American/Other population has declined by an estimated 13.1%. Native American/Other residents' share of Miller County's population has remained roughly unchanged at 0.8%.

Miller County is more Native American/Other than neighboring Lafayette County (0.6% Native American/Other), Hempstead County (0.3% Native American/Other), Cass County (0.7% Native American/Other), Little River County (0.7% Native American/Other), and Bowie County (0.7% Native American/Other).

Miller County's Multiracial Population

1,400 residents of Miller County, or 3.3% of the population, identify as Multiracial. The share of Multiracial residents in Miller County is slightly lower than in Arkansas overall, where 6.3% of the population is Multiracial. Miller County ranks 34th statewide in terms of Multiracial residents as a share of the population, out of 75 counties.

Since the 2020 Census, Miller County's Multiracial population has declined by an estimated 26.6%. Multiracial residents' share of Miller County's population has decreased from 4.5% to 3.3%.

Miller County is more Multiracial than neighboring Lafayette County (3.2% Multiracial), and Cass County (2.6% Multiracial). Miller County is less Multiracial than neighboring Hempstead County (3.6% Multiracial), Little River County (4.2% Multiracial), and Bowie County (3.8% 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.