Boone County Population Charts

According to the most recent Boone County Illinois demographics data available from the 2022 Census Bureau released in the American Community Survey in November of 2022, Figure 1 Boone County indicates it has a Population 2021 of 53,592 which is the second smallest as measured by population of all the other counties in the local area. The county with the highest population in the area is McHenry County which shows a population of 310,749 ( markedly bigger). Figure 3 uses the Boone County population data for a comparison of the population growth/population change estimates from the years 2010 to 2021 and Boone County Illinois shows a decline of 573 (1%).

The total Boone County Illinois greater area population percent change for all areas for the years from 2010 to 2021 is shown in Figure 4 and for Boone County depicts it has a Population Change of -1.1% which is in the center range of other counties in the greater region.

Looking at the Boone County population density (measured as people per square mile) and providing comparisons to both the national and state average population density in Figure 5, Boone County Illinois shows it has 191 people per square mile which is in the mid range of other counties in the metropolitan area. The next higher in order of population density is Rock County 19.3% larger with population density of 228. The county with the highest population density in the area is Winnebago County which depicts a people per square mile of 556 (approximately 2.9 times bigger). Figure 6 provides Boone County demographics for the overall median age for all people in the region and Boone County indicates it has a Median Age of 38.8 which is the second smallest in terms of overall median age of all people of all the other counties in the local area. The county with the highest overall median age of all people in the area is Ogle County which depicts an age of 42.3 (9.0% larger). The Boone County Illinois population data for median age broken out by gender for both men versus the median age of women is shown in Figure 7. Boone County Illinois depicts a median age of men only about 2.1% smaller as the median age of women.

The next demographic analysis (Figure 8) looks at large generational Boone County population groups (and can be useful internet research for employment related research or identifying areas with retirees). Key findings in this chart includes that Boone County Illinois has the percentage of people less than 20 years of age less than most other counties in the metro area at 11.6% of the total.

Figure 9 illustrates the overall diversity breakdown for Boone County population and ethnicity groups in the area. (note: Hispanic/Latino is broken out separately in the next diagram and also the group denoted as Native ethnicity includes Native American, and Hawaiian and Other Pacific Islander.) Boone County Illinois has the largest proportion of Native population at 12.3% of the total and is ranked #1. Figure 10 shows the Boone County Illinois Hispanic (including non Hispanic whites) population household ethnicity in the region and Boone County shows it has a Hispanic or Latino of 22.8% which is the largest of all counties in the greater Boone County region. Figure 11 compares the ratio of the amount of men to the amount of women and depicts total male population about the same size as the total female population.

Boone County Marital Status and Families Charts

Figure 14 compares the average household size using the average number of people in a family for Boone County households. Boone County shows it has a Family Size of 3.4 which is more than all other counties in the greater Boone County region.

Figure 15 shows the overall ratio of Boone County households for families to the total number of Boone County households and that Boone County depicts it has a Families of 72% which is the second most families percent of all the counties in the greater Boone County region. The county with the highest percent of people who are in a family in the area is McHenry County which shows a families percent of 75% (only about 4.5% larger).

Looking at Boone County households that are headed by a husband and wife as a percent of all families in Figure 16, Boone County depicts it has a Married-couple family of 75% which is in the mid range of other counties in the greater region. The county with the highest percent of people in a husband and wife family in the area is McHenry County which shows a husband and wife family percent of 80% (7.4% larger). Figure 17 shows Boone County demographics for the head of household for each place using a breakdown of married-couple, male-headed alone, and female-headed alone. Boone County Illinois has the largest proportion of households at 9.7% of the total and is ranked #1.

Boone County Mothers and Children Charts

The next section of charts provide a detailed look at mothers and baby births that occurred over the past 12 months. Figure 18 shows the rate of women aged 15 to 50 years old who have given birth. Boone County depicts it has a Birth Rate of 4.3% which is the second smallest in terms of percent of women who gave birth of all the other counties in the local area. The county with the highest percent of women who gave birth in the area is Winnebago County which shows a birth rate of 6.7% (54.1% larger). Figure 19 shows the breakdown of the mother's age for all baby births that occurred in the last 12 months and has the percentage of percent of births to mothers aged 15 to 19 in the intermediate range of other counties in the local area at 14% of the total. Second, it has the second smallest in terms of percent of births to mothers aged 15 to 19 of all the other counties in the metro area as measured by percent of births to mothers aged 20 to 24 at 30% of the total. Third, it has the largest proportion of percent of births to mothers aged 25 to 29 at 36% of the total and is ranked #1. Also, it has the smallest proportion of percent of births to mothers aged 30 to 34 at 9% of the total. In addition, it has the largest proportion of percent of births to mothers aged 40 to 44 at 4% of the total and is ranked #1.

In Figure 20, the demographic data for Boone County Illinois teenager birth rate is shown (women between the ages of 15 and 19.) Boone County shows it has a Teenager Birth Rate of 5% which is the largest of all counties in the greater Boone County region.

In Figure 21, the percentage of all births in the last 12 months to mothers that were unmarried is shown (unwed mothers.) Boone County depicts it has a Unwed Births of 76% which is ranked #1 of all counties in the local area.

The next chart, Figure 22, shows the percentage of unwed mothers who are also on public assistance. Boone County depicts it has a Unwed birth and on public assistance of 29.2% which is the most of all counties in the local area.

Unwed mothers who have given birth in the last 12 months are also shown broken down by age group in Figure 24. Boone County Illinois has the percentage of unwed mothers aged 15 to 19 less than most other counties in the area at 87.0% of the total. Second, it has the smallest proportion of unwed mothers aged 20 to 34 at 6.9% of the total. Figure 25 shows the comparative demographic rate of unwed mothers who have given birth in the last 12 months are broken down by racial group (including the Hispanic birth rate.) Boone County Illinois has the largest proportion of Black unwed birth rate at 88.2% of the total and is ranked #1. Second, it has the largest proportion of Hispanic unwed birth rate at 100.0% of the total and is ranked #1.

Figure 26 shows unwed mothers in poverty (based on median household income definition) who have given birth in the last 12 months. Boone County Illinois has the smallest proportion of unwed births and living below poverty level at 12.6% of the total.

For all births to unwed mothers, Figure 27 breaks down the education level of the mother by less than high school through college and post graduate attainment has the smallest proportion of percent of unwed mothers with less than high school education at 1% of the total. Second, it has the second smallest when sorted by percent of unwed mothers with less than high school education of all the other counties in the surrounding region in terms of percent of unwed mothers who are a high school graduate or equivalent at 27% of the total. Third, it has the largest proportion of percent of unwed mothers with some college or an associates degree at 12% of the total and is ranked #1. Also, it has the largest proportion of percent of unwed mothers with a Bachelors degree at 33% of the total and is ranked #1.

Boone County Marital Status Charts

The next set of demographic data looks at the marital status for Boone County households which is useful for internet research. Figure 28 compares the total number of single people in each area. Boone County depicts it has a Total Single People of 49% which is in the center range of other counties in the local area. The county with the highest percent of people who are single for any reason in the area is DeKalb County which shows a percent single of 56% (15.7% larger). Comparing percent of people who are single for any reason to the United States average of 50%, Boone County is only about 2.9% smaller. Also, measured against the state of Illinois, percent of people who are single for any reason of 51%, Boone County is only about 4.5% smaller.

Figure 30 compares the single people in each area broken down by never married, divorced, and widowed. Boone County Illinois has the percentage of percent never married in the middle range of other counties in the local area at 12% of the total.

Figure 33 shows the Boone County demographics for the ratio of the number of single men between the age of 18 and 65, in each area, broken down by age group for the Boone County metro area. Boone County Illinois has one of the largest proportions of single men 30 to 34 at 8% of the total and is ranked #2. The only larger county being Rock County with 9%. Second, it has the smallest proportion of single men 50 to 60 at 2% of the total.

Figure 34 shows the Boone County population data for the ratio of the number of single women between the age of 18 and 65, in each area, broken down by age group for the Boone County metro area. Boone County Illinois has the largest proportion of single women 45 to 49 at 20% of the total and is ranked #1.

Boone County Citizenship Demographics Charts

The next section of demographic information provides detailed data Boone County residents including: immigrants, citizenship, immigration, country of origin, non citizens and more. To start, Figure 35 shows a high level view of citizenship. Boone County Illinois has the largest proportion of citizens by naturalization at 5% of the total and is ranked #1. The next chart (Figure 36) shows for all citizens what the original place of birth was for people who were born in a foreign country and it has the largest proportion of birthplace in the South at 3% of the total and is ranked #1.

In Figure 37, the demographic percentage of Boone County residents who were not born in the United States is shown (i.e. percent foreign born.) Boone County shows it has a Percent Foreign Born of 9.3% which is the largest of all counties in the greater region. Comparing percent of population who was born in another country to the United States average of 13.6%, Boone County is approximately three-fourths the size. Also, compared to the state of Illinois, percent of population who was born in another country of 14.1%, Boone County is approximately three-fourths the size.

Figure 39 provides a detailed analysis of non citizens by breaking them into two age groups: Under 18 and over the age of 18. Boone County Illinois shows a percent of non citizens under 18 years old only about 0.5% the size as the percent of non citizens over 18 years old. Figure 40 provides further information for non citizen age by showing a comparison of the median age for all non citizens immigrants. it has a Non Citizen Median Age of 44.2 which is the highest of all counties in the greater Boone County region. The next diagram (Figure 41) shows the year of entry that non citizens entered the United States. The year of entry can show the rate of flow at various points of time in the past for when they entered the U.S. has the smallest proportion of non citizens who entered the US after 2010 at 11% of the total. Second, it has the largest proportion of non citizens who entered the US between 1990 to 1999 at 34% of the total and is ranked #1. Third, it has one of the largest proportions of non citizens who entered the US before 1990 at 19% of the total and is ranked #2. The only larger county being McHenry County with 21%.

For all foreign born people who have gone through naturalization (the process of becoming a legal U.S. resident citizen), Figure 42 shows the year when they became fully naturalized U.S. citizens. it has the largest proportion of people naturalized 2015 or later at 25% of the total and is ranked #1.

Boone County Birthplace Demographic Charts

Figure 43 displays a map of the globe and shows Boone County demographic information for large regions of the world that people from this place originally came from. Boone County Illinois has the smallest proportion of from Europe at 8% of the total. Second, it has the second smallest when sorted by percent of people born in Europe of all the other counties in the area in order of from Asia at 11% of the total. Third, it has the largest proportion of from Oceania at 1% of the total and is ranked #1. Also, it has the largest proportion of from the Americas at 80% of the total and is ranked #1.

Figure 44 categorizes the location for where foreign born people originally come from based on very large continental geographic areas. Boone County Illinois has the largest proportion of from Africa at 1% of the total and is ranked #1. Second, it has the largest proportion of from Oceania at 80% of the total and is ranked #1.

Figure 45 is a table that breaks out all the people who were foreign born by which large geographic region where they were born. Boone County Illinois has the smallest proportion of people who were born in Northern Europe at 0.9% of the total. Second, it has the smallest proportion of people who were born in Western Europe at 1.1% of the total. Third, it has the largest proportion of people who were born in the Oceania region at 0.5% of the total and is ranked #1. Also, it has the smallest proportion of people who were born in the Caribbean at 0.1% of the total. In addition, it has the largest proportion of people who were born in Central America at 73.7% of the total and is ranked #1.