Ogle County Demographics

A map of Ogle County's Population by Race

Ogle County, Illinois has an estimated population of 51,495, a less than 1% change from the 51,788 recorded in the 2020 Census. The population is 83.0% White, 11.9% Hispanic, 2.9% Multiracial, 1.2% Black, 0.6% Asian, and 0.4% Native American/Other. This demographic dot map shows the population of Ogle County, with one dot drawn for each person counted by the Census, color-coded by race.

Ogle is about as racially diverse as it was in the 2020 Census. It is considerably less diverse than Illinois overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Ogle County, that probability was 29.3% in 2020 and 29.6% in the most recent ACS estimates.

Ogle County is ranked the 28th most populous county in Illinois, out of 102 counties. Ogle County was ranked the 28th most populous county in the 2020 Census.

Ogle County's White Population

42,746 residents of Ogle County, or 83.0% of the population, identify as White. The share of White residents in Ogle County is significantly higher than in Illinois overall, where 58.1% of the population is White. Ogle County ranks 70th statewide in terms of White residents as a share of the population, out of 102 counties.

Since the 2020 Census, Ogle County's White population has remained roughly the same. White residents' share of Ogle County's population has remained roughly unchanged at 83.0%.

Ogle County is more White than neighboring Winnebago County (63.8% White), Stephenson County (78.9% White), DeKalb County (71% White), and Boone County (68% White). Ogle County is less White than neighboring Lee County (83.4% White).

Ogle County's Black Population

627 residents of Ogle County, or 1.2% of the population, identify as Black. The share of Black residents in Ogle County is considerably lower than in Illinois overall, where 13.3% of the population is Black. Ogle County ranks 60th statewide in terms of Black residents as a share of the population, out of 102 counties.

Since the 2020 Census, Ogle County's Black population has grown by an estimated 15.5%. Black residents' share of Ogle County's population has remained roughly unchanged at 1.2%.

Ogle County is less Black than neighboring Lee County (5.3% Black), Winnebago County (11.6% Black), Stephenson County (8.5% Black), DeKalb County (6.8% Black), and Boone County (2.3% Black).

Ogle County's Asian Population

289 residents of Ogle County, or 0.6% of the population, identify as Asian. The share of Asian residents in Ogle County is lower than in Illinois overall, where 5.9% of the population is Asian. Ogle County ranks 51st statewide in terms of Asian residents as a share of the population, out of 102 counties.

Since the 2020 Census, Ogle County's Asian population has grown by an estimated 11.6%. Asian residents' share of Ogle County's population has remained roughly unchanged at 0.6%.

Ogle County is less Asian than neighboring Lee County (0.7% Asian), Winnebago County (2.9% Asian), Stephenson County (0.8% Asian), DeKalb County (2.2% Asian), and Boone County (1% Asian).

Ogle County's Hispanic Population

6,144 residents of Ogle County, or 11.9% of the population, identify as Hispanic. The share of Hispanic residents in Ogle County is lower than in Illinois overall, where 18.8% of the population is Hispanic. Ogle County ranks 15th statewide in terms of Hispanic residents as a share of the population, out of 102 counties.

Since the 2020 Census, Ogle County's Hispanic population has grown by an estimated 6.0%. Hispanic residents' share of Ogle County's population has increased from 11.2% to 11.9%.

Ogle County is more Hispanic than neighboring Lee County (7.6% Hispanic), and Stephenson County (5.6% Hispanic). Ogle County is less Hispanic than neighboring Winnebago County (15.5% Hispanic), DeKalb County (14.5% Hispanic), and Boone County (25.6% Hispanic).

Ogle County's Native American/Other Population

204 residents of Ogle County, or 0.4% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Ogle County is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Ogle County ranks 78th statewide in terms of Native American/Other residents as a share of the population, out of 102 counties.

Since the 2020 Census, Ogle County's Native American/Other population has grown by an estimated 15.9%. Native American/Other residents' share of Ogle County's population has remained roughly unchanged at 0.4%.

Ogle County is more Native American/Other than neighboring Lee County (0.1% Native American/Other). Ogle County is less Native American/Other than neighboring Winnebago County (0.5% Native American/Other), Stephenson County (0.6% Native American/Other), and DeKalb County (0.7% Native American/Other).

Ogle County's Multiracial Population

1,485 residents of Ogle County, or 2.9% of the population, identify as Multiracial. The share of Multiracial residents in Ogle County is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. Ogle County ranks 38th statewide in terms of Multiracial residents as a share of the population, out of 102 counties.

Since the 2020 Census, Ogle County's Multiracial population has declined by an estimated 21.6%. Multiracial residents' share of Ogle County's population has decreased from 3.7% to 2.9%.

Ogle County is more Multiracial than neighboring Boone County (2.8% Multiracial). Ogle County is less Multiracial than neighboring Winnebago County (5.8% Multiracial), Stephenson County (5.6% Multiracial), and DeKalb County (4.8% 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.