McHenry County Demographics

A map of McHenry County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	4,892	5,024	94.0%	94.0%
Hispanic	112	98	2.2%	1.8%
Multiracial	101	167	1.9%	3.1%
Native American/Other	50	33	1.0%	0.6%
Black	40	11	0.8%	0.2%
Asian	12	12	0.2%	0.2%

McHenry County, North Dakota has an estimated population of 5,207, a slight decrease from the 5,345 recorded in the 2020 Census. The population is 94.0% White, 2.2% Hispanic, 1.9% Multiracial, 1.0% Native American/Other, 0.8% Black, and 0.2% Asian. This demographic dot map shows the population of McHenry County, with one dot drawn for each person counted by the Census, color-coded by race.

McHenry is about as racially diverse as it was in the 2020 Census. It is considerably less diverse than North Dakota overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In McHenry County, that probability was 11.5% in 2020 and 11.6% in the most recent ACS estimates.

McHenry County is ranked the 23rd most populous county in North Dakota, out of 53 counties. McHenry County was ranked the 23rd most populous county in the 2020 Census.

McHenry County's White Population

4,892 residents of McHenry County, or 94.0% of the population, identify as White. The share of White residents in McHenry County is considerably higher than in North Dakota overall, where 81.7% of the population is White. McHenry County ranks 17th statewide in terms of White residents as a share of the population, out of 53 counties.

Since the 2020 Census, McHenry County's White population has declined by an estimated 2.6%. White residents' share of McHenry County's population has remained roughly unchanged at 94.0%.

McHenry County is more White than neighboring Bottineau County (89.1% White), Pierce County (90.8% White), Ward County (80.4% White), and McLean County (88.1% White). McHenry County is less White than neighboring Sheridan County (96.5% White).

McHenry County's Black Population

40 residents of McHenry County, or 0.8% of the population, identify as Black. The share of Black residents in McHenry County is slightly lower than in North Dakota overall, where 3.3% of the population is Black. McHenry County ranks 37th statewide in terms of Black residents as a share of the population, out of 53 counties.

Since the 2020 Census, McHenry County's Black population has grown by an estimated 263.6%. Black residents' share of McHenry County's population has increased from 0.2% to 0.8%.

McHenry County is more Black than neighboring Bottineau County (0% Black), Pierce County (0.3% Black), Sheridan County (0% Black), and McLean County (0.1% Black). McHenry County is less Black than neighboring Ward County (3.9% Black).

McHenry County's Asian Population

12 residents of McHenry County, or 0.2% of the population, identify as Asian. The share of Asian residents in McHenry County is comparable to the share in North Dakota overall, where 1.6% of the population is Asian. McHenry County ranks 41st statewide in terms of Asian residents as a share of the population, out of 53 counties.

Since the 2020 Census, McHenry County's Asian population has remained roughly the same. Asian residents' share of McHenry County's population has remained roughly unchanged at 0.2%.

McHenry County is less Asian than neighboring Bottineau County (0.5% Asian), Pierce County (0.4% Asian), Sheridan County (0.5% Asian), Ward County (1.5% Asian), and McLean County (1% Asian).

McHenry County's Hispanic Population

112 residents of McHenry County, or 2.2% of the population, identify as Hispanic. The share of Hispanic residents in McHenry County is slightly lower than in North Dakota overall, where 4.7% of the population is Hispanic. McHenry County ranks 35th statewide in terms of Hispanic residents as a share of the population, out of 53 counties.

Since the 2020 Census, McHenry County's Hispanic population has grown by an estimated 14.3%. Hispanic residents' share of McHenry County's population has remained roughly unchanged at 2.2%.

McHenry County is more Hispanic than neighboring Pierce County (0.8% Hispanic), Sheridan County (0.4% Hispanic), and McLean County (2% Hispanic). McHenry County is less Hispanic than neighboring Bottineau County (2.6% Hispanic), and Ward County (7.2% Hispanic).

McHenry County's Native American/Other Population

50 residents of McHenry County, or 1.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in McHenry County is slightly lower than in North Dakota overall, where 4.7% of the population is Native American/Other. McHenry County ranks 46th statewide in terms of Native American/Other residents as a share of the population, out of 53 counties.

Since the 2020 Census, McHenry County's Native American/Other population has grown by an estimated 51.5%. Native American/Other residents' share of McHenry County's population has remained roughly unchanged at 1.0%.

McHenry County is more Native American/Other than neighboring Sheridan County (0.4% Native American/Other). McHenry County is less Native American/Other than neighboring Bottineau County (4.8% Native American/Other), Pierce County (4.8% Native American/Other), Ward County (2% Native American/Other), and McLean County (5.6% Native American/Other).

McHenry County's Multiracial Population

101 residents of McHenry County, or 1.9% of the population, identify as Multiracial. The share of Multiracial residents in McHenry County is slightly lower than in North Dakota overall, where 4% of the population is Multiracial. McHenry County ranks 26th statewide in terms of Multiracial residents as a share of the population, out of 53 counties.

Since the 2020 Census, McHenry County's Multiracial population has declined by an estimated 39.5%. Multiracial residents' share of McHenry County's population has decreased from 3.1% to 1.9%.

McHenry County is less Multiracial than neighboring Bottineau County (3% Multiracial), Pierce County (2.9% Multiracial), Sheridan County (2.2% Multiracial), Ward County (5% Multiracial), and McLean County (3.1% 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.